Bitcoin Cold-Storage With Bit-Card And BIP38
•
2 likes•1,357 views
Brian Fabian Crain presented on using Bit-Cards for cold storage of bitcoin. Bit-Cards are paper wallets encrypted using BIP0038 that contain a private key and QR code. The cards provide a simple way for new users to securely store bitcoin offline, but have some usability issues like QR codes not scanning well and lack of labeling. Overall, Bit-Cards provide a solid system for intermediate bitcoin users seeking an alternative to offline wallets, but the usability is not fully there yet.
Report
Share
Report
Share
Download to read offline
Recommended
Bitcoin basics
Bitcoin is a decentralized digital currency that allows for fast transfer of value through the internet without middlemen. It works through a peer-to-peer network that confirms transactions and records them on a public blockchain. Users can obtain bitcoins by accepting them as payment, buying them on exchanges, or participating in bitcoin mining by solving computational puzzles to validate transactions and earn new bitcoins as a reward. There is a finite supply of 21 million bitcoins that will be created by approximately the year 2040.
Investment Strategies in Bitcoin
Investment Strategies in Bitcoin. Slide deck on Investing and Trading Bitcoin. Introduction on Trading Bitcoin, recommendations on tools and sites as well as descriptions on fundamental and technical analysis.
Cryptocurrencies: The digital financial revolution
This seminar discussed cryptocurrencies and the digital financial revolution. It began with a brief history of money and the development of digital currencies like Bitcoin. Bitcoin was created in 2008 as a digital currency using blockchain technology with no central authority. The blockchain acts as a distributed public ledger that records all transactions in an immutable manner. Anyone can own bitcoins and transfer them to others through the blockchain network. While initially used on the dark web, cryptocurrencies have grown into a big business and some see them becoming a global payment rail. However, issues around scalability, energy use, and regulation still need to be addressed as this new technology develops.
Bitcoin economics brian crain
This document summarizes the economics of Bitcoin, including the costs of attacking the Bitcoin network through a 51% attack or kamikaze mining pool. It outlines that the cost of a 51% attack is determined by the Bitcoin market capitalization, cost of mining hardware, and profitability of mining. A kamikaze pool could undermine confidence by mining empty blocks. The document also notes that block rewards will be cut in half in 2016 through halving, which may reduce miner profits and lead to mining consolidation unless transaction fees rise.
The Future of and Alternatives to Bitcoin
The document discusses alternatives to bitcoin such as Litecoin, Namecoin, and Ripple. It examines examples like using bitcoins, namecoin which manages the .bit domain, and ripple which uses trust lines between currencies. The presentation concludes by discussing the future of cryptocurrencies and the bitcoin exchange called Kraken.
The Hive Think Tank: Sidechains by Adam Back, President of Blockstream
Adam Back discusses sidechains, which allow assets like bitcoin to move between blockchains while maintaining the same properties. Sidechains extend the functionality of blockchains to support new applications through interoperability. This helps address challenges like scalability and fragmentation in the bitcoin network. Examples are given like using sidechains for software upgrades, experimental features, and exchange settlements. Sidechains are secured through bitcoin mining incentives and can provide confidential transactions through techniques like zero-knowledge proofs.
Financial Modelling - Skyline and Luge queue time
The document models the queue times at a skyride and luge attraction using Excel simulations. The base case models the current situation and finds an average queue time of 41.5 minutes. Option 1 widens the luge trails, reducing the average queue time to 28.4 minutes. Option 2 adds a third rainbow luge trail, further reducing the average queue time to 17.9 minutes. A sensitivity analysis shows the length of the additional trail has little effect on queue times. The analysis concludes building a shorter third trail would be the most effective way to improve queue times, reducing costs versus a longer trail.
Sidechain talk
This document provides an overview of sidechains, a proposed solution to improve bitcoin. Sidechains allow bitcoin holders to transfer bitcoin to linked sidechains with different rules while maintaining the same ownership. This allows for innovation without changing the main bitcoin blockchain. Sidechains are proposed to enable experimentation, new features like smart contracts, or riskier applications like lotteries in a separate chain without compromising the main bitcoin network. Potential drawbacks include increased complexity and centralization risks for sidechains.
Recommended
Bitcoin basics
Bitcoin is a decentralized digital currency that allows for fast transfer of value through the internet without middlemen. It works through a peer-to-peer network that confirms transactions and records them on a public blockchain. Users can obtain bitcoins by accepting them as payment, buying them on exchanges, or participating in bitcoin mining by solving computational puzzles to validate transactions and earn new bitcoins as a reward. There is a finite supply of 21 million bitcoins that will be created by approximately the year 2040.
Investment Strategies in Bitcoin
Investment Strategies in Bitcoin. Slide deck on Investing and Trading Bitcoin. Introduction on Trading Bitcoin, recommendations on tools and sites as well as descriptions on fundamental and technical analysis.
Cryptocurrencies: The digital financial revolution
This seminar discussed cryptocurrencies and the digital financial revolution. It began with a brief history of money and the development of digital currencies like Bitcoin. Bitcoin was created in 2008 as a digital currency using blockchain technology with no central authority. The blockchain acts as a distributed public ledger that records all transactions in an immutable manner. Anyone can own bitcoins and transfer them to others through the blockchain network. While initially used on the dark web, cryptocurrencies have grown into a big business and some see them becoming a global payment rail. However, issues around scalability, energy use, and regulation still need to be addressed as this new technology develops.
Bitcoin economics brian crain
This document summarizes the economics of Bitcoin, including the costs of attacking the Bitcoin network through a 51% attack or kamikaze mining pool. It outlines that the cost of a 51% attack is determined by the Bitcoin market capitalization, cost of mining hardware, and profitability of mining. A kamikaze pool could undermine confidence by mining empty blocks. The document also notes that block rewards will be cut in half in 2016 through halving, which may reduce miner profits and lead to mining consolidation unless transaction fees rise.
The Future of and Alternatives to Bitcoin
The document discusses alternatives to bitcoin such as Litecoin, Namecoin, and Ripple. It examines examples like using bitcoins, namecoin which manages the .bit domain, and ripple which uses trust lines between currencies. The presentation concludes by discussing the future of cryptocurrencies and the bitcoin exchange called Kraken.
The Hive Think Tank: Sidechains by Adam Back, President of Blockstream
Adam Back discusses sidechains, which allow assets like bitcoin to move between blockchains while maintaining the same properties. Sidechains extend the functionality of blockchains to support new applications through interoperability. This helps address challenges like scalability and fragmentation in the bitcoin network. Examples are given like using sidechains for software upgrades, experimental features, and exchange settlements. Sidechains are secured through bitcoin mining incentives and can provide confidential transactions through techniques like zero-knowledge proofs.
Financial Modelling - Skyline and Luge queue time
The document models the queue times at a skyride and luge attraction using Excel simulations. The base case models the current situation and finds an average queue time of 41.5 minutes. Option 1 widens the luge trails, reducing the average queue time to 28.4 minutes. Option 2 adds a third rainbow luge trail, further reducing the average queue time to 17.9 minutes. A sensitivity analysis shows the length of the additional trail has little effect on queue times. The analysis concludes building a shorter third trail would be the most effective way to improve queue times, reducing costs versus a longer trail.
Sidechain talk
This document provides an overview of sidechains, a proposed solution to improve bitcoin. Sidechains allow bitcoin holders to transfer bitcoin to linked sidechains with different rules while maintaining the same ownership. This allows for innovation without changing the main bitcoin blockchain. Sidechains are proposed to enable experimentation, new features like smart contracts, or riskier applications like lotteries in a separate chain without compromising the main bitcoin network. Potential drawbacks include increased complexity and centralization risks for sidechains.
Sidechains Presentation
This is a presentation about sidechains - the proposal to allow innovation on different blockchains using the monetary base of Bitcoin.
Harvard Endowment Fund
Analyse of the endowment model employed by Harvard and Yale and identify the reasons why Harvard made more losses than the other endowment funds in 2009
The Hive Think Tank: The Content Trap - Strategist's Guide to Digital Change
In this The Hive Think Tank talk Harvard Business School Professor of Strategy Prof. Bharat Anand shares his insights on the Digital innovation trends that are shaping the way organizations will act in the future.
In this talk, Professor Anand presents the findings from his forthcoming book. To answer these questions, Anand examines a range of businesses around the world, from Chinese internet giant Tencent to Scandinavian digital trailblazer Schibsted, from The New York Times to The Economist, and from talent management to the future of education.
Bitcoin 2.0
The document discusses various applications and improvements of blockchain technology beyond Bitcoin 1.0, including smart contracts, decentralized autonomous organizations, sidechains and counterparty. Ethereum is presented as a platform to build decentralized applications that allows for more transaction types beyond currency, including multi-signature transactions and creating your own currencies. It aims to be a scalable foundational protocol for other applications to utilize improved features like faster block confirmation times.
Ethereum Presentation
This document summarizes a new cryptocurrency and protocol called Ethereum. Ethereum aims to enable decentralized autonomous corporations (DACs) which are organizations embodied in computer code and run without any human involvement. It allows for smart contracts that can transact, store data, and even modify their own code. The fundraising period for Ethereum starts on February 1, with ether currency issued in exchange for bitcoin contributions over a 60 day period. Ethereum provides a generalized computing platform on its own blockchain to enable DACs through smart contracts in a decentralized way.
The Hive Think Tank: Talk by Mohandas Pai - India at 2030, How Tech Entrepren...
This document discusses how India can become a $10 trillion economy by 2030 through technology entrepreneurship and the growth of its startup ecosystem. It notes that India currently has the 3rd largest startup ecosystem in the world with 19,400 startups. If the ecosystem continues growing at 270% over 6 years, it could create $500 billion in market value and employ over 3.5 million people by 2030. This growth will be accelerated by initiatives like Digital India that are building digital infrastructure and opening government data through APIs, fueling innovation and problem solving across sectors to help propel India to its economic goals.
The Hive Think Tank: Heron at Twitter
This document provides an overview and hands-on demonstration of Twitter's Heron stream processing framework. The agenda includes a Heron overview, hands-on experience launching topologies and using Heron tools, and exploring the UI. Instructions are given on installing Heron client and tools binaries. Example topologies are launched using the 'heron submit' command. The Heron tracker and UI are launched to view logical/physical plans, metrics, logs, and exceptions. Additional resources mentioned include the Heron starters repository and user forum.
Information security in private blockchains
The InfoSec implications of using a blockchain rather than a centralized database to store inter-company information.
The Hive Think Tank: Translating IoT into Innovation at Every Level by Prith ...
In this presentation Prith Banerjee discusses how a sustainable future must become radically more efficient with the way we use energy. He shared how the Internet of Things (IoT) and the convergence of Operational Technology (OT) and Information Technology (IT) are enabling Schneider Electric's innovation at every level, redefining power and automation for a new world of energy which is more electric, decarbonized, decentralized and digitized. Prith shared how, in this new world of energy, Schneider ensures that Life Is On everywhere, for everyone and at every moment. He also shared a set of IoT predictions for the future, based on findings of the company’s recent IoT Survey of 2,500 top business executives.
The Hive Think Tank: Machine Learning Applications in Genomics by Prof. Jian ...
In this The Hive Think Tank talk, Professor Jian Ma introduces machine learning methods that can be used to help tackle some of the most intriguing questions in genomics and biomedicine. He discusses the research projects in his group to study genome structure and function, including algorithms to unravel complex genomic aberrations in cancer genomes and gene regulatory principles encoded in our genome, by utilizing
probabilistic graphical models and deep neural network techniques. The knowledge obtained from such computational methods can greatly enhance our ability to understand disease genomes.
Deep Visual Understanding from Deep Learning by Prof. Jitendra Malik
In this The Hive Think Tank talk, Prof. Jitendra Malik talks about Artificial Intelligence (AI) and Computer Vision, past, present and future.
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
1) Lorawan is a long range, low power wireless communication protocol that allows devices to communicate over a long range and with low data rates using gateways and a central network server.
2) Two citizen science projects used sensors to monitor air quality but had limitations in duration, labor intensity, and real-time data. Lorawan may provide a solution that combines the benefits of both approaches.
3) Lorawan uses a star-of-stars topology with end devices communicating through gateways to a central network server, allowing devices to move without needing to connect to a new gateway. This provides robustness and long battery life for devices.
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
The document provides an overview of imec's City of Things initiative, which aims to create a large-scale Internet of Things testbed in Antwerp, Belgium to allow international and local stakeholders to develop, test, and validate new IoT technologies, products, and services in a real-world urban environment. The City of Things platform is intended to serve as an open innovation platform to help improve cities using IoT in a bottom-up, citizen-driven approach and address challenges around privacy, regulation, and economic sustainability of smart city projects.
Metadata in the Blockchain: The OP_RETURN Explosion
With the addition of OP_RETURN outputs in version 0.9, it became possible to attach arbitrary pieces of information to bitcoin transactions. This turns bitcoin into a low-level communications protocol, just like TCP/IP, on which many new applications can be built.
Despite its powerful features, bitcoin is also limited, costly and inefficient compared to TCP/IP. After discussing which sorts of applications make this trade-off worthwhile, we talk about CoinSpark, a new open source protocol for enhancing bitcoin transactions, which makes extensive use of OP_RETURNs.
The Hive Think Tank: The Future Of Customer Support - AI Driven Automation
The Hive Think Tank Panel Discussion moderated by Kate Leggett (Forrester) with panelists: Allan Leinwand (ServiceNow), Nitin Narkhede (Wipro), Jason Smale (Zendesk), Dan Turchin (Neva). The future of customer support is AI-driven virtual agents. Soon, we’ll interact conversationally with bots that know who we are, how we’re impacted, and what we need. Soon, the capabilities of virtual agents will far exceed those of today’s best human agents. We’ll receive support that is more reliable than friends, more accurate than social media, and less frustrating than waiting on hold.
BigchainDB - Big Data meets Blockchain
Rather than trying to scale up blockchain technology, BigchainDB starts with a big data distributed database and then adds blockchain characteristics - decentralized control, immutability and the transfer of digital assets.
MultiChain – Private multicurrency blockchain platform
An introduction to MultiChain, an open source platform for private blockchains, that is backwards compatible with Bitcoin Core.
The Hive Think Tank: AI in The Enterprise by Venkat Srinivasan
This The Hive Think Tank talk by Venkat Srinivasan, CEO of RAGE Frameworks, focuses on successful applications of AI in the Enterprise. We start with a broad and more inclusive definition of AI in the context of enterprise business processes.
We introduce a taxonomy of AI solution methods that broaden the focus beyond a narrow focus on deep learning based on neural nets. In line with the taxonomy, we present several successful AI applications in use today at major corporations across industries including financial services, manufacturing/retail, professional services, logistics. These applications range from commercial lending, contract review, customer service intelligence, market and competitive intelligence, signals for capital markets, regulatory compliance and others.
Meetup 19/12/2016 - Blockchain-as-a-service voor Antwerpen?
MultiChain is an open source platform for private blockchain applications that provides highly configurable permissioned blockchains, fast transaction processing speeds, and decentralized data storage through customizable assets and streams. It offers a flexible way to deploy private blockchains across operating systems and clouds. MultiChain has been used for various use cases including identity management, insurance administration, and enabling liquidity in crowdfunding.
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
90% of innovation fails based on post-mortem failure analysis. The top reasons for failure are lack of market need (42%), running out of cash (29%), having the wrong team (23%), and getting outcompeted (19%). To successfully innovate, it is important to solve a problem that is large enough and can be addressed through a scalable solution, conduct user research and prototyping, and design a strong business model.
Crypto currencies presentation by Dr. Andre Gholam
Among the learning objectives:
A. Crypto-currencies :
• The definition, history and evolution of the thousands of
crypto-currencies in the market, with their pros and
cons.
• Getting, mining and trading using cryptocurrencies.
• The legal status of this new technology in Lebanon and
different countries of the world.
• The possible future of crypto-currencies.
B. Blockchain :
• The technology behind crypto-currencies : concepts,
history, security, pros and cons.
• Examples and case studies of Blockchain applications.
C. ICOs :
• A new way for raising capital for companies and start-
ups.
• History and ICO phases.
Bitcoin - Cos'è e come si usa la moneta virtuale
14 Novembre 2017
Titolo: Cos'è e come si usa la moneta virtuale
Relatore: Ing. Vito Pesola
Descrizione: Il bitcoin è solo una delle criptovalute scambiate su un mercato che nel 2017 sfiora i 200 miliardi di dollari ed è in rapida crescita. La vera rivoluzione però è Blockchain, la tecnologia che sta dietro le criptovalute e sarà nei prossimi anni una colonna portante dell’innovazione in tutti i settori della vita umana e della produzione industriale.
A cura di Alumni Mathematica
More Related Content
Viewers also liked
Sidechains Presentation
This is a presentation about sidechains - the proposal to allow innovation on different blockchains using the monetary base of Bitcoin.
Harvard Endowment Fund
Analyse of the endowment model employed by Harvard and Yale and identify the reasons why Harvard made more losses than the other endowment funds in 2009
The Hive Think Tank: The Content Trap - Strategist's Guide to Digital Change
In this The Hive Think Tank talk Harvard Business School Professor of Strategy Prof. Bharat Anand shares his insights on the Digital innovation trends that are shaping the way organizations will act in the future.
In this talk, Professor Anand presents the findings from his forthcoming book. To answer these questions, Anand examines a range of businesses around the world, from Chinese internet giant Tencent to Scandinavian digital trailblazer Schibsted, from The New York Times to The Economist, and from talent management to the future of education.
Bitcoin 2.0
The document discusses various applications and improvements of blockchain technology beyond Bitcoin 1.0, including smart contracts, decentralized autonomous organizations, sidechains and counterparty. Ethereum is presented as a platform to build decentralized applications that allows for more transaction types beyond currency, including multi-signature transactions and creating your own currencies. It aims to be a scalable foundational protocol for other applications to utilize improved features like faster block confirmation times.
Ethereum Presentation
This document summarizes a new cryptocurrency and protocol called Ethereum. Ethereum aims to enable decentralized autonomous corporations (DACs) which are organizations embodied in computer code and run without any human involvement. It allows for smart contracts that can transact, store data, and even modify their own code. The fundraising period for Ethereum starts on February 1, with ether currency issued in exchange for bitcoin contributions over a 60 day period. Ethereum provides a generalized computing platform on its own blockchain to enable DACs through smart contracts in a decentralized way.
The Hive Think Tank: Talk by Mohandas Pai - India at 2030, How Tech Entrepren...
This document discusses how India can become a $10 trillion economy by 2030 through technology entrepreneurship and the growth of its startup ecosystem. It notes that India currently has the 3rd largest startup ecosystem in the world with 19,400 startups. If the ecosystem continues growing at 270% over 6 years, it could create $500 billion in market value and employ over 3.5 million people by 2030. This growth will be accelerated by initiatives like Digital India that are building digital infrastructure and opening government data through APIs, fueling innovation and problem solving across sectors to help propel India to its economic goals.
The Hive Think Tank: Heron at Twitter
This document provides an overview and hands-on demonstration of Twitter's Heron stream processing framework. The agenda includes a Heron overview, hands-on experience launching topologies and using Heron tools, and exploring the UI. Instructions are given on installing Heron client and tools binaries. Example topologies are launched using the 'heron submit' command. The Heron tracker and UI are launched to view logical/physical plans, metrics, logs, and exceptions. Additional resources mentioned include the Heron starters repository and user forum.
Information security in private blockchains
The InfoSec implications of using a blockchain rather than a centralized database to store inter-company information.
The Hive Think Tank: Translating IoT into Innovation at Every Level by Prith ...
In this presentation Prith Banerjee discusses how a sustainable future must become radically more efficient with the way we use energy. He shared how the Internet of Things (IoT) and the convergence of Operational Technology (OT) and Information Technology (IT) are enabling Schneider Electric's innovation at every level, redefining power and automation for a new world of energy which is more electric, decarbonized, decentralized and digitized. Prith shared how, in this new world of energy, Schneider ensures that Life Is On everywhere, for everyone and at every moment. He also shared a set of IoT predictions for the future, based on findings of the company’s recent IoT Survey of 2,500 top business executives.
The Hive Think Tank: Machine Learning Applications in Genomics by Prof. Jian ...
In this The Hive Think Tank talk, Professor Jian Ma introduces machine learning methods that can be used to help tackle some of the most intriguing questions in genomics and biomedicine. He discusses the research projects in his group to study genome structure and function, including algorithms to unravel complex genomic aberrations in cancer genomes and gene regulatory principles encoded in our genome, by utilizing
probabilistic graphical models and deep neural network techniques. The knowledge obtained from such computational methods can greatly enhance our ability to understand disease genomes.
Deep Visual Understanding from Deep Learning by Prof. Jitendra Malik
In this The Hive Think Tank talk, Prof. Jitendra Malik talks about Artificial Intelligence (AI) and Computer Vision, past, present and future.
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
1) Lorawan is a long range, low power wireless communication protocol that allows devices to communicate over a long range and with low data rates using gateways and a central network server.
2) Two citizen science projects used sensors to monitor air quality but had limitations in duration, labor intensity, and real-time data. Lorawan may provide a solution that combines the benefits of both approaches.
3) Lorawan uses a star-of-stars topology with end devices communicating through gateways to a central network server, allowing devices to move without needing to connect to a new gateway. This provides robustness and long battery life for devices.
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
The document provides an overview of imec's City of Things initiative, which aims to create a large-scale Internet of Things testbed in Antwerp, Belgium to allow international and local stakeholders to develop, test, and validate new IoT technologies, products, and services in a real-world urban environment. The City of Things platform is intended to serve as an open innovation platform to help improve cities using IoT in a bottom-up, citizen-driven approach and address challenges around privacy, regulation, and economic sustainability of smart city projects.
Metadata in the Blockchain: The OP_RETURN Explosion
With the addition of OP_RETURN outputs in version 0.9, it became possible to attach arbitrary pieces of information to bitcoin transactions. This turns bitcoin into a low-level communications protocol, just like TCP/IP, on which many new applications can be built.
Despite its powerful features, bitcoin is also limited, costly and inefficient compared to TCP/IP. After discussing which sorts of applications make this trade-off worthwhile, we talk about CoinSpark, a new open source protocol for enhancing bitcoin transactions, which makes extensive use of OP_RETURNs.
The Hive Think Tank: The Future Of Customer Support - AI Driven Automation
The Hive Think Tank Panel Discussion moderated by Kate Leggett (Forrester) with panelists: Allan Leinwand (ServiceNow), Nitin Narkhede (Wipro), Jason Smale (Zendesk), Dan Turchin (Neva). The future of customer support is AI-driven virtual agents. Soon, we’ll interact conversationally with bots that know who we are, how we’re impacted, and what we need. Soon, the capabilities of virtual agents will far exceed those of today’s best human agents. We’ll receive support that is more reliable than friends, more accurate than social media, and less frustrating than waiting on hold.
BigchainDB - Big Data meets Blockchain
Rather than trying to scale up blockchain technology, BigchainDB starts with a big data distributed database and then adds blockchain characteristics - decentralized control, immutability and the transfer of digital assets.
MultiChain – Private multicurrency blockchain platform
An introduction to MultiChain, an open source platform for private blockchains, that is backwards compatible with Bitcoin Core.
The Hive Think Tank: AI in The Enterprise by Venkat Srinivasan
This The Hive Think Tank talk by Venkat Srinivasan, CEO of RAGE Frameworks, focuses on successful applications of AI in the Enterprise. We start with a broad and more inclusive definition of AI in the context of enterprise business processes.
We introduce a taxonomy of AI solution methods that broaden the focus beyond a narrow focus on deep learning based on neural nets. In line with the taxonomy, we present several successful AI applications in use today at major corporations across industries including financial services, manufacturing/retail, professional services, logistics. These applications range from commercial lending, contract review, customer service intelligence, market and competitive intelligence, signals for capital markets, regulatory compliance and others.
Meetup 19/12/2016 - Blockchain-as-a-service voor Antwerpen?
MultiChain is an open source platform for private blockchain applications that provides highly configurable permissioned blockchains, fast transaction processing speeds, and decentralized data storage through customizable assets and streams. It offers a flexible way to deploy private blockchains across operating systems and clouds. MultiChain has been used for various use cases including identity management, insurance administration, and enabling liquidity in crowdfunding.
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
90% of innovation fails based on post-mortem failure analysis. The top reasons for failure are lack of market need (42%), running out of cash (29%), having the wrong team (23%), and getting outcompeted (19%). To successfully innovate, it is important to solve a problem that is large enough and can be addressed through a scalable solution, conduct user research and prototyping, and design a strong business model.
Viewers also liked (20)
The Hive Think Tank: The Content Trap - Strategist's Guide to Digital Change
The Hive Think Tank: The Content Trap - Strategist's Guide to Digital Change
The Hive Think Tank: Talk by Mohandas Pai - India at 2030, How Tech Entrepren...
The Hive Think Tank: Talk by Mohandas Pai - India at 2030, How Tech Entrepren...
The Hive Think Tank: Translating IoT into Innovation at Every Level by Prith ...
The Hive Think Tank: Translating IoT into Innovation at Every Level by Prith ...
The Hive Think Tank: Machine Learning Applications in Genomics by Prof. Jian ...
The Hive Think Tank: Machine Learning Applications in Genomics by Prof. Jian ...
Deep Visual Understanding from Deep Learning by Prof. Jitendra Malik
Deep Visual Understanding from Deep Learning by Prof. Jitendra Malik
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
Metadata in the Blockchain: The OP_RETURN Explosion
Metadata in the Blockchain: The OP_RETURN Explosion
The Hive Think Tank: The Future Of Customer Support - AI Driven Automation
The Hive Think Tank: The Future Of Customer Support - AI Driven Automation
MultiChain – Private multicurrency blockchain platform
MultiChain – Private multicurrency blockchain platform
The Hive Think Tank: AI in The Enterprise by Venkat Srinivasan
The Hive Think Tank: AI in The Enterprise by Venkat Srinivasan
Meetup 19/12/2016 - Blockchain-as-a-service voor Antwerpen?
Meetup 19/12/2016 - Blockchain-as-a-service voor Antwerpen?
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
Meetup 19/01/2017 - Meet LoRa, a gamechanger in Antwerp?
Similar to Bitcoin Cold-Storage With Bit-Card And BIP38
Crypto currencies presentation by Dr. Andre Gholam
Among the learning objectives:
A. Crypto-currencies :
• The definition, history and evolution of the thousands of
crypto-currencies in the market, with their pros and
cons.
• Getting, mining and trading using cryptocurrencies.
• The legal status of this new technology in Lebanon and
different countries of the world.
• The possible future of crypto-currencies.
B. Blockchain :
• The technology behind crypto-currencies : concepts,
history, security, pros and cons.
• Examples and case studies of Blockchain applications.
C. ICOs :
• A new way for raising capital for companies and start-
ups.
• History and ICO phases.
Bitcoin - Cos'è e come si usa la moneta virtuale
14 Novembre 2017
Titolo: Cos'è e come si usa la moneta virtuale
Relatore: Ing. Vito Pesola
Descrizione: Il bitcoin è solo una delle criptovalute scambiate su un mercato che nel 2017 sfiora i 200 miliardi di dollari ed è in rapida crescita. La vera rivoluzione però è Blockchain, la tecnologia che sta dietro le criptovalute e sarà nei prossimi anni una colonna portante dell’innovazione in tutti i settori della vita umana e della produzione industriale.
A cura di Alumni Mathematica
Bitcoin 101: The Currency, The Network, The Community
Bitcoin and the underlying technology of cryptocurrency is poised to revolutionize the world of banking and financial equity. Can Bitcoin make it through the volatile startup years and be adopted as a global currency? With an estimated 50,000 businesses now accepting Bitcoin and more than $100 million in venture capital investments, 2014 could be the tipping point for this new form of value exchange.
In this introductory presentation, you'll learn what Bitcoin is, why the technology is revolutionary and how you can get involved in the community. Find out how businesses can save 2-3% on credit card fees and have instant access to a global market. Discover how digital currencies are supporting thriving local economies. Don't miss this opportunity to educate yourself on the fundamentals of Bitcoin and see how you and your business will benefit.
Presentation on Bitcoin
Bitcoin is a digital currency created by Satoshi Nakamoto and released as open-source software in 2009. It allows online payments to be sent directly from one party to another without an intermediary. There will ultimately only be 21 million bitcoins created. Bitcoins are stored in digital wallets consisting of a public and private key. They can be obtained through mining, exchanging other currencies, buying from individuals, or selling goods/services for bitcoins. While they offer advantages over traditional currencies, bitcoins also carry risks like volatility, hacking, and theft if not properly secured.
Eps assignment
Bitcoin is a digital currency created in 2008 that allows for electronic transactions without a central bank or single administrator. It can be used to buy goods and services from participating retailers. Bitcoin transactions are verified by a decentralized network of computers and recorded in a public ledger called the blockchain. While it offers advantages like low fees and anonymity, bitcoin also faces risks like high volatility, the possibility of losing coins if private keys are lost, and lack of legal protections and central oversight. Regulators in some countries have issued warnings about bitcoin's risks.
Bitcoin ppt
this PPT has the answer to the following question:
1)How Did It Start?
2)Where Do Bitcoins Come From?
3)What is the Vision of Bitcoins?
4)What is the Value of a Bitcoin?
5)Who Sells Bitcoins?
6)how to Buy Bitcoins Locally?
7)Why Would You Want Some
Bitcoin?
CRYPTO CURRENCY.pptx
A Crypto currency is a digital or virtual currency.
Many crypto currency are decentralized networks based on block chain technology – a distributed ledger enforced by a disparate network of computers.
SATOSHI NAKAMOTO
S.N is the name used by the person or persons who developed bitcoin, authored the bitcoin white paper, and created and deployed bitcoin’s original reference implementation.
A block chain is a distributed database that is shared among the nodes of a computer network. As a database, a block chain stores information electronically in digital format. systems, such as Bitcoin, for maintaining a secure and decentralized record of transactions. The innovation with a block chain is that it guarantees the fidelity and security of a record of data and generates trust without the need for a trusted third party.
as well as in a modern world the crypto currency is use full to make a transactions secretly. Now many governments can accept this currency. But this currency is an decentralized system.
Union Plus Coin English Powerpoint presentation UPC
This document summarizes the evolution of currency from ancient times to modern digital currencies like Bitcoin. It traces the development from silver and bronze coins in ancient Lydia to modern credit cards and digital payment systems. A key point is that 90% of money now exists as digital entries on computers rather than physical currency. The document then discusses the rise of cryptocurrencies like Bitcoin and their potential to revolutionize global finance by facilitating fast, anonymous digital payments without transaction fees. It profiles the Union-Plus Coin cryptocurrency and its goal of providing an alternative currency for both online and offline purchases.
How bitcoin Works.pptx
1. The document provides an overview of Bitcoin, including its origins, how it works as a decentralized digital currency, and some of its key features and advantages.
2. It discusses Bitcoin's theoretical underpinnings and compares it to traditional fiat currencies and commodities like gold. However, it notes that Bitcoin faces significant challenges from its volatility, lack of regulation, and theoretical shortcomings regarding use as a stable currency.
3. In conclusion, the document outlines both advantages and disadvantages of Bitcoin, questioning its independence and stability as a currency due to issues like its unregulated status, anonymity enabling tax evasion, and lack of a clear theoretical framework supporting its use as money.
BitCoins
The document discusses Bitcoin, a digital currency. It describes how Bitcoins are created through mining computations and can be exchanged online or sold locally. Some advantages are lower transaction fees and anonymity, while disadvantages include volatility, security issues, and potential for illegal use. The document outlines the vision of Bitcoin as a decentralized payment system and speculates on its future potential if issues are addressed.
Cryptocurrencies 101 v3
The document provides a history of currencies from ancient times to present day and discusses the rise of cryptocurrencies like Bitcoin and Ethereum. It explains that Bitcoin was launched in 2008 as a digital currency using blockchain technology, while Ethereum was introduced in 2015 with added functionality for smart contracts. The rapid growth of cryptocurrencies is attributed to these foundational projects, speculation and investment, and socioeconomic factors like high inflation and lack of access to traditional financial systems. The document outlines some advantages of cryptocurrencies and tools for tracking the market.
Bitcoin - the Basics
Bitcoin is an open-source cryptocurrency created by the pseudonymous Satoshi Nakamoto. It is a decentralized digital currency that uses peer-to-peer technology to operate without a central authority. Transactions are verified through a proof-of-work system and recorded in a public distributed ledger called a blockchain. While bitcoin offers advantages like instant transactions and anonymity, it also faces challenges like volatility, scalability issues, and the risk of losing coins if private keys are lost. Overall, bitcoin remains a controversial new currency that some see as the future while others see risks in its use and acceptance.
Bitcoin School Project
Bitcoin is a decentralized digital currency created by unknown person or group called Satoshi Nakamoto. It allows for peer-to-peer transactions without an intermediary. Bitcoins are produced through mining, where computers validate transactions by solving complex math problems and are rewarded with new bitcoins. The total number of bitcoins is limited to 21 million. While bitcoin offers advantages like low fees and accessibility, it also faces criticisms around its energy use and potential for criminal activity. Whether to invest in bitcoin depends on one's risk tolerance since its value is volatile without an underlying asset.
Ashok misra presentation
Ashok Misra gave a presentation on Bitcoin at Inside Bitcoins in Las Vegas. He has decades of experience in banking and ecommerce. He discusses the growth of ecommerce, the evolution of online payments, and how Bitcoin works as a payment method. He covers topics like how Bitcoin is acquired and stored securely, its application for ecommerce, and potential pitfalls.
Cryptocurrencies 101
Cryptocurrencies like Bitcoin and Ethereum have exploded in popularity due to various socioeconomic factors and their advantages over traditional currencies. Their underlying blockchain technologies use cryptographic techniques like hashing and Merkle trees to manage trust in a decentralized manner without the need for centralized authorities. Miners are incentivized to secure the networks by verifying transactions for a reward of new coins, though over time the rewards are reduced according to set algorithms to control inflation. Anyone can now create new cryptocurrencies by forking existing blockchains or launching new ones.
Introduction to bitcoin
This document provides an introduction and overview of Bitcoin, including how it works, different types of Bitcoin wallets, and how to manage and secure wallets. It begins with background on Bitcoin, explaining that it is the first decentralized digital currency created in 2008. It then describes how Bitcoin works at a high level, including how transactions are processed through a shared public ledger called the blockchain using private keys. The document also categorizes and describes different types of Bitcoin wallets like desktop, mobile, hardware, and physical wallets, and provides tips for choosing and securing a wallet.
What is a blockchain?
What is a Blockchain? - Presented by Wayne Lippman
What is a Blockchain
What is Bitcoin
Where did Bitcoin come from?
How does a Blockchain get built
How does a Blockchain get verified
Weaknesses of Blockchain technology
Value
Current applications of Blockchain technology
Future applications of Blockchain technology
Q & A
Introduction to Cryptocurrency(Bitcoin).
This document provides an overview of cryptocurrency, focusing on Bitcoin. It discusses the history of Bitcoin's creation in 2008 by Satoshi Nakamoto, lists some major cryptocurrencies like Bitcoin, Ethereum, and Litecoin, and shows Bitcoin's price graph from 2016 to 2018. It also describes how to obtain Bitcoin through exchanges, products/services, other cryptocurrencies, or mining, and where Bitcoin wallets are stored. The document outlines how Bitcoin mining works through solving mathematical problems with computer hardware and software, and provides some facts about Bitcoin like its limited supply.
Bitcoin
Bitcoin is an electronic currency that began in 2009 and relies on a network of computers to verify transactions without a central authority. The value of bitcoin is highly volatile and dependent on user confidence. Bitcoins can be used to purchase goods online from some retailers and are stored in virtual wallets with unique keys. The collapse of Mt. Gox, a major bitcoin exchange, in 2014 demonstrated issues with unregulated currency when over $450 million in bitcoins went missing due to theft. Better regulation of exchanges may help bitcoin gain mainstream acceptance.
Think bitcoin workshop slideshare
Digital currencies like bitcoin can be used for payments, as a store of value, and for professional use in business. The document discusses the history and basics of bitcoin, how transactions work using the blockchain, and opportunities for using digital currencies like bitcoin for remittances, global mobile banking, micro-payments, crowdfunding, and e-commerce. It also covers bitcoin mining, wallets, and getting and spending bitcoins.
Similar to Bitcoin Cold-Storage With Bit-Card And BIP38 (20)
Crypto currencies presentation by Dr. Andre Gholam
Crypto currencies presentation by Dr. Andre Gholam
Bitcoin 101: The Currency, The Network, The Community
Bitcoin 101: The Currency, The Network, The Community
Union Plus Coin English Powerpoint presentation UPC
Union Plus Coin English Powerpoint presentation UPC
Recently uploaded
Pushing the limits of ePRTC: 100ns holdover for 100 days
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Programming Foundation Models with DSPy - Meetup Slides
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
How to Get CNIC Information System with Paksim Ga.pptx
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
UiPath Test Automation using UiPath Test Suite series, part 5
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Infrastructure Challenges in Scaling RAG with Custom AI models
Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
AI 101: An Introduction to the Basics and Impact of Artificial Intelligence
Imagine a world where machines not only perform tasks but also learn, adapt, and make decisions. This is the promise of Artificial Intelligence (AI), a technology that's not just enhancing our lives but revolutionizing entire industries.
Uni Systems Copilot event_05062024_C.Vlachos.pdf
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
National Security Agency - NSA mobile device best practices
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Essentials of Automations: The Art of Triggers and Actions in FME
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
Mind map of terminologies used in context of Generative AI
Mind map of common terms used in context of Generative AI.
Video Streaming: Then, Now, and in the Future
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Climate Impact of Software Testing at Nordic Testing Days
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
GraphRAG for Life Science to increase LLM accuracy
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
Recently uploaded (20)
Pushing the limits of ePRTC: 100ns holdover for 100 days
Pushing the limits of ePRTC: 100ns holdover for 100 days
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!
Programming Foundation Models with DSPy - Meetup Slides
Programming Foundation Models with DSPy - Meetup Slides
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
How to Get CNIC Information System with Paksim Ga.pptx
How to Get CNIC Information System with Paksim Ga.pptx
UiPath Test Automation using UiPath Test Suite series, part 5
UiPath Test Automation using UiPath Test Suite series, part 5
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAU
Infrastructure Challenges in Scaling RAG with Custom AI models
Infrastructure Challenges in Scaling RAG with Custom AI models
AI 101: An Introduction to the Basics and Impact of Artificial Intelligence
AI 101: An Introduction to the Basics and Impact of Artificial Intelligence
National Security Agency - NSA mobile device best practices
National Security Agency - NSA mobile device best practices
Essentials of Automations: The Art of Triggers and Actions in FME
Essentials of Automations: The Art of Triggers and Actions in FME
GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...
GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
Mind map of terminologies used in context of Generative AI
Mind map of terminologies used in context of Generative AI
Climate Impact of Software Testing at Nordic Testing Days
Climate Impact of Software Testing at Nordic Testing Days
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...
GraphRAG for Life Science to increase LLM accuracy
GraphRAG for Life Science to increase LLM accuracy
Bitcoin Cold-Storage With Bit-Card And BIP38
- 1. Bitcoin Startups Berlin - April 22 2014 Cold Storage with Bit-Card Brian Fabian Crain
- 2. Outline ❖ Context: Wallets, Thefts, New Users! ❖ Bit-Card! ❖ BIP0038! ❖ Testing the System! ❖ Conclusion! ❖ The Road Ahead
- 4. Thefts ❖ MtGox (~700,000 BTC?)! ❖ Chinese Exchange GBL ($4.1m)! ❖ Sheep Market Place (~$100m)! ❖ Inputs.io ($1.2m)! ❖ Malware! ❖ Total: ~820,000 BTC (~6% of money supply)
- 6. What’s a New User To Do?
- 7. The Bit-Card System ❖ bit2factor.org (Generate Intermediate Codes)! ❖ Receive-Only Card! ❖ Encrypted Paper Wallet (2)! ❖ Blockchain.info (To spend money)
- 8. Bit-Card.de ❖ Company based in Leipzig! ❖ Carsten Unger is often at meet ups! ❖ Have sold 100,000+ cards
- 9. Types of Wallets ❖ Unencrypted Paper Wallets (Presents/hologram safe)! ❖ Encrypted BIP38 paper wallets
- 12. Bitcoin Address Encrypted Private Key underneath Confirmation Code Bit-Card.de URL with balance
- 13. Arrangement Password Parents’ House Bank Safe Recovery Instructions Home
- 14. Scrypt ❖ A password-based key derivation function! ❖ Expensive to brute-force, takes 100s of ms! ❖ Requires large amount of memory
- 15. Could Scrypt-ASICs Break BIP38? ❖ Memory-demand for Litecoin: 128kB! ❖ Memory-demand for BIP38: 16MB! ❖ Cryptocurrencies: Require Partial Hash Collision! ❖ BIP0038 would need exact match! ❖ With a reasonably secure password: No
- 16. Spending From Cold Storage
- 17. Problems ❖ QR code scan fails with bad light! ❖ No QR code for confirmation code! ❖ Very little information - QR Codes not labeled! ❖ Danger of change addresses! ❖ Not (really) reusable
- 18. Conclusion ❖ Usability is not there yet.! ❖ Solid system for intermediate-advanced Bitcoin users, who want alternative to offline Armory.
- 19. Resources ❖ Bit-Card.de (Thanks to Carsten!)! ❖ BIP0038 (Not very readable)! ❖ bit2factor.org