This document discusses MultiChain, a blockchain technology that can be integrated into Java projects easily within minutes. It describes what MultiChain is, why it is useful for learning and training purposes, and how it can be installed and used through a Java API provided by Worldline R&D in under 5 minutes with little configuration needed. MultiChain is presented as a tool for learning about blockchains through hands-on experimentation with blockchain assets.
How Encryption For Strong Security Worksguestf50fcba
This document discusses different types of encryption for strong security. It describes data encryption, file encryption, link encryption, and VPN. Data encryption uses a symmetric-key algorithm and is mainly used in the US and UNIX systems. File encryption codes files that can only be decoded with a password. Link encryption encrypts and decrypts traffic between communication lines, while VPN allows using a public line as a private line.
This document compares the roles and experiences of general admissions recruitment ambassadors and honors program ambassadors at Eastern Kentucky University. While the two groups of ambassadors have similar tasks like giving tours and speaking to potential students, there are some key differences. General admissions ambassadors give daily tours to larger groups and focus on the general public, while honors ambassadors work fewer events and strictly with honors students. Both groups enjoy sharing their experiences and seeing appreciation from students, but dislikes include communication issues and irregular events for honors ambassadors.
It's common for those who experience high levels of empathy to find themselves in relationships with narcissists who either take advantage of or prey on what they perceive to be a weaker group. Narcissism is a self-serving condition in which the focus is on image, status, and getting things rather than on giving and serving others. In other words: lack of empathy is at the root of narcissism.
The challenge that empaths can have in relationships is that they often give their power away. Highly sensitive people will help others first, putting their own needs last, partly because they intuitively know what others want from them. They vitally need to set healthy boundaries, which can be a challenge.
The survey of 503 Indiana voters found Donald Trump leading Hillary Clinton by 14 points for president. However, the generic ballot for governor was split, with Republicans up only 2 points. Hypothetical matchups showed all 3 potential Republican candidates for governor trailing the Democratic nominee. However, when voters were provided information about Susan Brooks' accomplishments and bipartisan approach, her support increased by 7 points and she took the lead over the Democrat. The survey concluded that Susan Brooks was uniquely suited to lead Indiana Republicans to victory in November.
Dying is Easy, Young Man, Comedy is HarderCurtis Chen
Rainforest Writers Village 2017, Session One
Why is it so difficult to make people laugh? How can you make something funny without writing satire or flat-out farce? Brace yourself for a deep dive into jokes vs. humor, cultural diversity, and the science of phonology. Sorry not sorry.
IMMINENT NEED OF ADDING PRO-ACTIVE LIFE SKILLS TO CREATE BALANCED EDUCATION...Devinder Kansal
The document discusses the need to add proactive life skills to create a balanced education for empowering youth. It argues that education should include physical activity and sports to develop students' psychomotor, cognitive, affective, spiritual and social skills. This balanced education, guided by the principles of sports training, will help students gain life skills like exercise, nutrition and stress management. It recommends establishing centers at universities to apply knowledge across disciplines and quickly update courses to meet society's changing needs. This eclectic, balanced approach will holistically develop students' personalities and empower them for the future.
This document discusses MultiChain, a blockchain technology that can be integrated into Java projects easily within minutes. It describes what MultiChain is, why it is useful for learning and training purposes, and how it can be installed and used through a Java API provided by Worldline R&D in under 5 minutes with little configuration needed. MultiChain is presented as a tool for learning about blockchains through hands-on experimentation with blockchain assets.
How Encryption For Strong Security Worksguestf50fcba
This document discusses different types of encryption for strong security. It describes data encryption, file encryption, link encryption, and VPN. Data encryption uses a symmetric-key algorithm and is mainly used in the US and UNIX systems. File encryption codes files that can only be decoded with a password. Link encryption encrypts and decrypts traffic between communication lines, while VPN allows using a public line as a private line.
This document compares the roles and experiences of general admissions recruitment ambassadors and honors program ambassadors at Eastern Kentucky University. While the two groups of ambassadors have similar tasks like giving tours and speaking to potential students, there are some key differences. General admissions ambassadors give daily tours to larger groups and focus on the general public, while honors ambassadors work fewer events and strictly with honors students. Both groups enjoy sharing their experiences and seeing appreciation from students, but dislikes include communication issues and irregular events for honors ambassadors.
It's common for those who experience high levels of empathy to find themselves in relationships with narcissists who either take advantage of or prey on what they perceive to be a weaker group. Narcissism is a self-serving condition in which the focus is on image, status, and getting things rather than on giving and serving others. In other words: lack of empathy is at the root of narcissism.
The challenge that empaths can have in relationships is that they often give their power away. Highly sensitive people will help others first, putting their own needs last, partly because they intuitively know what others want from them. They vitally need to set healthy boundaries, which can be a challenge.
The survey of 503 Indiana voters found Donald Trump leading Hillary Clinton by 14 points for president. However, the generic ballot for governor was split, with Republicans up only 2 points. Hypothetical matchups showed all 3 potential Republican candidates for governor trailing the Democratic nominee. However, when voters were provided information about Susan Brooks' accomplishments and bipartisan approach, her support increased by 7 points and she took the lead over the Democrat. The survey concluded that Susan Brooks was uniquely suited to lead Indiana Republicans to victory in November.
Dying is Easy, Young Man, Comedy is HarderCurtis Chen
Rainforest Writers Village 2017, Session One
Why is it so difficult to make people laugh? How can you make something funny without writing satire or flat-out farce? Brace yourself for a deep dive into jokes vs. humor, cultural diversity, and the science of phonology. Sorry not sorry.
IMMINENT NEED OF ADDING PRO-ACTIVE LIFE SKILLS TO CREATE BALANCED EDUCATION...Devinder Kansal
The document discusses the need to add proactive life skills to create a balanced education for empowering youth. It argues that education should include physical activity and sports to develop students' psychomotor, cognitive, affective, spiritual and social skills. This balanced education, guided by the principles of sports training, will help students gain life skills like exercise, nutrition and stress management. It recommends establishing centers at universities to apply knowledge across disciplines and quickly update courses to meet society's changing needs. This eclectic, balanced approach will holistically develop students' personalities and empower them for the future.
Build Upon- GBC Italia - WS4 Social HousingBUshare
Progetto BUILD UPON
WS4 - la riqualificazione profonda del patrimonio immobiliare per l'edilizia residenziale sociale. barriere best practices e priorità strategiche.
20 Gennaio 2017
Sede del Capitolo,
complesso monumentale di San Domenico Maggiore
Napoli
Hoe we kunnen zorgen dat iedereen profiteert van robotisering | ConferentieSo...Matthijs Pontier
Hoe we kunnen zorgen dat iedereen profiteert van robotisering Dr. Matthijs Pontier
2. Waarom ontwikkelen we technologie? Evolutionaire vooruitgang Het laten voortbestaan van (menselijk) leven Om ons welzijn te vergroten Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
3. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
4. Vrij delen van informatie, kunst en cultuur Evidence-based policy met een lange-termijn visie Zelfbeschikking stimuleren zonder dat dit ten koste gaat van rechten Vertrouwen burgers vs Wantrouwen ‘macht' Enthousiast over tech, maar alert op risico’s Tech to empower people; niet om te onderdrukken Basis principes PPNL Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
5. Welzijn en autonomie vergroten Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
6. Cars that free your time to do other things
7. Drinking Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
8. Road safety ;) Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
9. Road safety Matthijs Pontier, 22-03-2016 TU/e, How self-driving cars are going to change the future of mobility
10. Less road rage
11. More room for people and plants
12. Boosting highway capacity 273%
13. Boosting Highway capacity Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
14. Save energy
15. Gedeelde verantwoordelijkheid Stop met het bouwen van nieuwe wegen Stop met het bouwen van nieuwe parkeerplaatsen Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zor
16. Governments are lagging behind Governments are lagging behind
17. Monopolization Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
18. Hoe groter het bedrijf Hoe groter het machtscentrum Hoe groter de kans dat een bedrijf deze macht op een verkeerde manier gaat gebruiken
19. Need to stop corporate surveillance Regulate Big Business vs More freedom for small startups
20. Unequal power distribution
21. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
22. Techno-progressivism Democratiseer de ontwikkeling van technologie Kosten, risico’s en opbrengsten worden eerlijk gedeeld Ontwikkel technologie op zo’n manier dat het welzijn bevordert
23. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
24. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016
25. Als technologie voor je denkt Vertellen programmeurs dan
Jeremy and Ted go hiking in the woods. While taking a bathroom break, Jeremy is bitten by a venomous timber rattlesnake on his penis. Ted tells Jeremy he needs to suck the venom out. Jeremy hesitates, suggesting calling 911 instead. Ted insists sucking is the only way. Jeremy reluctantly agrees but can't reach. Ted ends up performing oral sex on Jeremy to remove the venom. Jeremy then fakes still being in pain to get Ted to do it again.
1.2.1 Система навесных шкафов и щитковIgor Golovin
Навесные шкафы и корпуса предназначены для размещения и защиты различных электротехнических, электронных компонентов от воздействий окружающей среды, в различных сферах применения.
El código agrupador para 2017 no cambia, ya que desde 2015 hasta 2017 el código agrupador ha permanecido sin cambios, clasificando las cuentas contables de 100=Activo hasta 899.02 contra cuenta otras cuentas de orden.
1) Social deviance refers to any violation of established social norms, ranging from minor informal transgressions to serious criminal acts. What is considered deviant can change over time.
2) Sociological theories of deviance examine how social norms are established and enforced through both informal social pressures and formal laws and punishments. They also seek to understand why some individuals violate norms.
3) Symbolic interactionist theories focus on how social interactions and labels influence perceptions of deviance. They view deviance as a social construct rather than an intrinsic quality.
2010 Russian Banks & Money LaunderingEthan Burger
The document discusses money laundering in Russia and its implications for Western countries. It summarizes that Russian laws against money laundering are often not enforced against senior officials and their associates. While Russia complies with international anti-money laundering standards, this may be more for appearances than effectiveness. Major Russian banks and industries have opaque ownership and dealings that likely involve laundering illicit funds and influencing foreign politics.
Este documento resume las claves del mercado bursátil para el viernes 24 de febrero de 2017, incluyendo los resultados esperados de varias compañías españolas e internacionales, los datos macroeconómicos que se publicarán, y el cierre al alza del Dow Jones en Estados Unidos, manteniendo su racha alcista de 10 días consecutivos marcando máximos históricos.
The document analyzes how different national public policy initiatives impact digital opportunity and ICT development. It finds that nations with a national telecommunications regulatory authority, competition in telecommunication services, competition in basic telecommunication services, and policies encouraging financial investment in ICTs are most likely to have increased digital opportunity, greater ICT access and use, and higher e-government capacity. The document uses data from 171 countries to analyze relationships between various policy variables and measures of digital opportunity.
Recro vs Actavis Zohydro Case Memorandum - Filed 02/22/17Andrew Cunningham
Case 1:14-cv-01118-GMS
(1) Actavis' proposed ANDA products infringe all of the asserted claims of the '096 patent; and
(2) Actavis' proposed ANDA products infringe all of the asserted claims of the '742 patent.
Suricata: A Decade Under the Influence (of packet sniffing)Jason Williams
Having just celebrated it's 10th birthday, Suricata has learned a lot about monitoring network traffic during the past decade. Suricata today is more than IDS/IPS— it is also a metadata creating, lua scripting, multi threaded, json logging, rule alerting, network security monitoring beast. Development for Suricata is funded by the non-profit Open Information Security Foundation which, along with feedback and support from the community, has made Suricata what it is today. In this talk we will discuss various aspects of modern Suricata, such as deployment, alerting, rule writing, compilation, protocols, lua, and more. Join us for a look into where Suricata has been, what it does today, and where it's going to go in the future.
gething started - ethereum & using the geth golang clientSathish VJ
- Ethereum is a cryptocurrency like Bitcoin that can be invested in, though it is highly volatile. Its token is called Ether (ETH).
- Ether reached over $1B market cap but is lower now after peaking at around $20 per ETH and currently trading around $7.50.
- There is currently around 90 million Ether in supply with the potential for more to be created through mining rewards and developer funds until Ethereum transitions to proof-of-stake.
This presentation describes the common issues when doing application logging and introduce how to solve most of the problems through the implementation of an unified logging layer with Fluentd.
1. Eduardo Silva discussed unifying event and log data from multiple sources into the cloud using Fluentd and Fluent Bit.
2. Fluentd is an open source data collector that allows for parsing and storing data from multiple sources through its pluggable input and output plugins.
3. Fluent Bit is designed for collecting data from IoT and embedded devices to transport it to third party services, with a focus on performance and lightweight resource usage.
This document provides an overview and agenda for a 4-day security training on .NET applications. Each day will discuss 2-3 security attacks and how to prevent them, include hands-on exercises and homework. The goal is for participants to understand security in .NET apps, learn about various attacks and defenses, and gain confidence in debugging and fixing issues. Participation and asking questions are encouraged. The trainer will provide security expertise and help find answers if unknown. Connecting on LinkedIn after is suggested to stay informed.
Build Upon- GBC Italia - WS4 Social HousingBUshare
Progetto BUILD UPON
WS4 - la riqualificazione profonda del patrimonio immobiliare per l'edilizia residenziale sociale. barriere best practices e priorità strategiche.
20 Gennaio 2017
Sede del Capitolo,
complesso monumentale di San Domenico Maggiore
Napoli
Hoe we kunnen zorgen dat iedereen profiteert van robotisering | ConferentieSo...Matthijs Pontier
Hoe we kunnen zorgen dat iedereen profiteert van robotisering Dr. Matthijs Pontier
2. Waarom ontwikkelen we technologie? Evolutionaire vooruitgang Het laten voortbestaan van (menselijk) leven Om ons welzijn te vergroten Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
3. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
4. Vrij delen van informatie, kunst en cultuur Evidence-based policy met een lange-termijn visie Zelfbeschikking stimuleren zonder dat dit ten koste gaat van rechten Vertrouwen burgers vs Wantrouwen ‘macht' Enthousiast over tech, maar alert op risico’s Tech to empower people; niet om te onderdrukken Basis principes PPNL Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
5. Welzijn en autonomie vergroten Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
6. Cars that free your time to do other things
7. Drinking Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
8. Road safety ;) Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
9. Road safety Matthijs Pontier, 22-03-2016 TU/e, How self-driving cars are going to change the future of mobility
10. Less road rage
11. More room for people and plants
12. Boosting highway capacity 273%
13. Boosting Highway capacity Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
14. Save energy
15. Gedeelde verantwoordelijkheid Stop met het bouwen van nieuwe wegen Stop met het bouwen van nieuwe parkeerplaatsen Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zor
16. Governments are lagging behind Governments are lagging behind
17. Monopolization Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
18. Hoe groter het bedrijf Hoe groter het machtscentrum Hoe groter de kans dat een bedrijf deze macht op een verkeerde manier gaat gebruiken
19. Need to stop corporate surveillance Regulate Big Business vs More freedom for small startups
20. Unequal power distribution
21. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
22. Techno-progressivism Democratiseer de ontwikkeling van technologie Kosten, risico’s en opbrengsten worden eerlijk gedeeld Ontwikkel technologie op zo’n manier dat het welzijn bevordert
23. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016, Hoe kunnen we zorgen dat iedereen van robotisering profiteert
24. Dr. Matthijs Pontier, Sociale Innovatie, 16-12-2016
25. Als technologie voor je denkt Vertellen programmeurs dan
Jeremy and Ted go hiking in the woods. While taking a bathroom break, Jeremy is bitten by a venomous timber rattlesnake on his penis. Ted tells Jeremy he needs to suck the venom out. Jeremy hesitates, suggesting calling 911 instead. Ted insists sucking is the only way. Jeremy reluctantly agrees but can't reach. Ted ends up performing oral sex on Jeremy to remove the venom. Jeremy then fakes still being in pain to get Ted to do it again.
1.2.1 Система навесных шкафов и щитковIgor Golovin
Навесные шкафы и корпуса предназначены для размещения и защиты различных электротехнических, электронных компонентов от воздействий окружающей среды, в различных сферах применения.
El código agrupador para 2017 no cambia, ya que desde 2015 hasta 2017 el código agrupador ha permanecido sin cambios, clasificando las cuentas contables de 100=Activo hasta 899.02 contra cuenta otras cuentas de orden.
1) Social deviance refers to any violation of established social norms, ranging from minor informal transgressions to serious criminal acts. What is considered deviant can change over time.
2) Sociological theories of deviance examine how social norms are established and enforced through both informal social pressures and formal laws and punishments. They also seek to understand why some individuals violate norms.
3) Symbolic interactionist theories focus on how social interactions and labels influence perceptions of deviance. They view deviance as a social construct rather than an intrinsic quality.
2010 Russian Banks & Money LaunderingEthan Burger
The document discusses money laundering in Russia and its implications for Western countries. It summarizes that Russian laws against money laundering are often not enforced against senior officials and their associates. While Russia complies with international anti-money laundering standards, this may be more for appearances than effectiveness. Major Russian banks and industries have opaque ownership and dealings that likely involve laundering illicit funds and influencing foreign politics.
Este documento resume las claves del mercado bursátil para el viernes 24 de febrero de 2017, incluyendo los resultados esperados de varias compañías españolas e internacionales, los datos macroeconómicos que se publicarán, y el cierre al alza del Dow Jones en Estados Unidos, manteniendo su racha alcista de 10 días consecutivos marcando máximos históricos.
The document analyzes how different national public policy initiatives impact digital opportunity and ICT development. It finds that nations with a national telecommunications regulatory authority, competition in telecommunication services, competition in basic telecommunication services, and policies encouraging financial investment in ICTs are most likely to have increased digital opportunity, greater ICT access and use, and higher e-government capacity. The document uses data from 171 countries to analyze relationships between various policy variables and measures of digital opportunity.
Recro vs Actavis Zohydro Case Memorandum - Filed 02/22/17Andrew Cunningham
Case 1:14-cv-01118-GMS
(1) Actavis' proposed ANDA products infringe all of the asserted claims of the '096 patent; and
(2) Actavis' proposed ANDA products infringe all of the asserted claims of the '742 patent.
Suricata: A Decade Under the Influence (of packet sniffing)Jason Williams
Having just celebrated it's 10th birthday, Suricata has learned a lot about monitoring network traffic during the past decade. Suricata today is more than IDS/IPS— it is also a metadata creating, lua scripting, multi threaded, json logging, rule alerting, network security monitoring beast. Development for Suricata is funded by the non-profit Open Information Security Foundation which, along with feedback and support from the community, has made Suricata what it is today. In this talk we will discuss various aspects of modern Suricata, such as deployment, alerting, rule writing, compilation, protocols, lua, and more. Join us for a look into where Suricata has been, what it does today, and where it's going to go in the future.
gething started - ethereum & using the geth golang clientSathish VJ
- Ethereum is a cryptocurrency like Bitcoin that can be invested in, though it is highly volatile. Its token is called Ether (ETH).
- Ether reached over $1B market cap but is lower now after peaking at around $20 per ETH and currently trading around $7.50.
- There is currently around 90 million Ether in supply with the potential for more to be created through mining rewards and developer funds until Ethereum transitions to proof-of-stake.
This presentation describes the common issues when doing application logging and introduce how to solve most of the problems through the implementation of an unified logging layer with Fluentd.
1. Eduardo Silva discussed unifying event and log data from multiple sources into the cloud using Fluentd and Fluent Bit.
2. Fluentd is an open source data collector that allows for parsing and storing data from multiple sources through its pluggable input and output plugins.
3. Fluent Bit is designed for collecting data from IoT and embedded devices to transport it to third party services, with a focus on performance and lightweight resource usage.
This document provides an overview and agenda for a 4-day security training on .NET applications. Each day will discuss 2-3 security attacks and how to prevent them, include hands-on exercises and homework. The goal is for participants to understand security in .NET apps, learn about various attacks and defenses, and gain confidence in debugging and fixing issues. Participation and asking questions are encouraged. The trainer will provide security expertise and help find answers if unknown. Connecting on LinkedIn after is suggested to stay informed.
Modern Authentication for ASP.NET Core with IdentityServer 4 (Progressive .NE...Scott Brady
This document discusses authentication and authorization standards including OAuth 2.0, OpenID Connect, and IdentityServer 4. It provides an overview of these specifications, how they relate, and how IdentityServer 4 can be used to implement authentication and authorization in ASP.NET Core applications using standards-based flows like authorization code flow and hybrid flow. Code samples and diagrams are included to demonstrate concepts like identity tokens, access tokens, and the roles of the authorization server and resource server.
Bitcoin is a decentralized peer-to-peer system that solves the problems of authenticity of money and preventing double spends of coins. It uses public and private keys, addresses that act like accounts, transactions to transfer coins between addresses, and mining to verify transactions and add them to the permanent public record called the blockchain. Miners are rewarded with new bitcoins and transaction fees for solving complex cryptographic puzzles to find valid blocks to add to the chain. Over time, the blockchain has grown to be a record of all valid bitcoin transactions since the genesis block was created in 2009.
Total privacy of transactions, Mimblewimble and GrinEugene Pavlenko
Mimblewimble protocol, initially proposed in 2016 as a privacy and scaling solution for Bitcoin, is the essence of the latest cryptography and blockchain inventions of top scientists and core bitcoin developers.
Grin, is the famous implementation of this protocol, eagerly expected by industry. It was launched this year on the 15th of January as a separate blockchain and a completely private payment system with its own coin.
The practical side of bitcoin code camp 2014jkazman
This document provides an overview of bitcoins including what they are, how they work, and how to use them. It explains that bitcoins are a digital currency not tied to any country that uses cryptography and a distributed ledger called the blockchain to manage transactions. It discusses how to create an online bitcoin wallet, obtain bitcoins through various means like exchanges or mining, and use bitcoins to make purchases from merchants accepting them. The blockchain is introduced as the public record of all bitcoin transactions.
This document provides an overview of blockchain technology including definitions, applications, and issues. It begins with definitions for blockchain, distributed ledger, and related concepts. Applications are discussed in both financial areas like bitcoin and ethereum, as well as non-financial uses in areas like IoT, healthcare records, and digital rights management. Technical issues addressed include scalability challenges and the debate around decentralization. A variety of industries are exploring blockchain including finance, government, and enterprise software through initiatives like Hyperledger.
Binance Clone Script - A Comprehensive Guide For Business seekers.pdfJamieelucas
Want to be ready to launch your own crypto exchange like Binance? Then I would like to suggest this curated handbook that is tailored for ambitious entrepreneurs like you. Uncover detailed insights, strategic approaches, and business-savvy tips to navigate the complexities of the crypto market with confidence and success. Unlock the secrets to a successful crypto venture!!
This document contains the transcript of a presentation on Bitcoin and cryptocurrencies. It introduces Bitcoin as an experimental digital currency that enables instant global payments without a central authority. It explains that Bitcoin uses peer-to-peer technology and blockchain to manage transactions collectively on the network. The presentation discusses why people may want to invest in or use Bitcoin, outlines how to obtain Bitcoin through exchanges or mining, and provides a basic technical overview of how Bitcoin transactions and blockchain work.
Staking in a Multi-Chain World - Key Analytics & Concepts to Knowintotheblock
Proof of Stake (PoS) has become the de facto consensus mechanism for smart contract platforms. While the core concept is the same, implementations of PoS can vary significantly depending on a set of optimizations brought forward by developer teams.
Key takeaways:
Intro to PoS & Consensus Algorithms
Liquid Staking
Staking in the Application Layer
The Future of Staking
For more information go to app.intotheblock.io
Eduardo Silva is an open source engineer at Treasure Data who works on Fluentd and FluentBit projects. FluentBit is a lightweight log collector for embedded Linux applications and IoT devices. It has built-in system metrics collection and supports custom inputs and outputs using msgpack serialization. FluentBit integrates with Fluentd for log aggregation and is designed to have low resource usage for constrained environments. The roadmap includes adding a library mode and more supported sensors.
Predicting Startup Market Trends based on the news and social media - Albert ...GetInData
Did you like it? Check out our blog to stay up to date: https://getindata.com/blog
Nowadays, one tweet can have impact on the value of the company or cryptocurrency. It becomes important for companies to be able to know everything what's happening in the market, especially for startups or when entering the new market. The presentation is about presenting the complex platform used for creating and verifying the strategy for a startup from the Wellbeing market. We go through web scraping-based data ingestion to ElasticSearch, NLP pipelines to understand what people write and what is the possible future of each market predicted by PySpark job.
Author: Albert Lewandowski
Linkedin: https://www.linkedin.com/in/albert-lewandowski/
___
Getindata is a company founded in 2014 by ex-Spotify data engineers. From day one our focus has been on Big Data projects. We bring together a group of best and most experienced experts in Poland, working with cloud and open-source Big Data technologies to help companies build scalable data architectures and implement advanced analytics over large data sets.
Our experts have vast production experience in implementing Big Data projects for Polish as well as foreign companies including i.a. Spotify, Play, Truecaller, Kcell, Acast, Allegro, ING, Agora, Synerise, StepStone, iZettle and many others from the pharmaceutical, media, finance and FMCG industries.
https://getindata.com
This document provides an overview of wallet setup and security for cryptocurrency wallets. It demonstrates how to create and recover wallets using Trezor and Ledger hardware wallets. It also covers the underlying cryptographic concepts such as private and public keys, addresses, deterministic wallets, BIP standards for wallet interoperability, and mnemonic phrases for backup and recovery.
The Rising Future of CPaaS in the Middle East 2024Yara Milbes
Explore "The Rising Future of CPaaS in the Middle East in 2024" with this comprehensive PPT presentation. Discover how Communication Platforms as a Service (CPaaS) is transforming communication across various sectors in the Middle East.
Unlock the Secrets to Effortless Video Creation with Invideo: Your Ultimate G...The Third Creative Media
"Navigating Invideo: A Comprehensive Guide" is an essential resource for anyone looking to master Invideo, an AI-powered video creation tool. This guide provides step-by-step instructions, helpful tips, and comparisons with other AI video creators. Whether you're a beginner or an experienced video editor, you'll find valuable insights to enhance your video projects and bring your creative ideas to life.
A neural network is a machine learning program, or model, that makes decisions in a manner similar to the human brain, by using processes that mimic the way biological neurons work together to identify phenomena, weigh options and arrive at conclusions.
The Power of Visual Regression Testing_ Why It Is Critical for Enterprise App...kalichargn70th171
Visual testing plays a vital role in ensuring that software products meet the aesthetic requirements specified by clients in functional and non-functional specifications. In today's highly competitive digital landscape, users expect a seamless and visually appealing online experience. Visual testing, also known as automated UI testing or visual regression testing, verifies the accuracy of the visual elements that users interact with.
Mobile App Development Company In Noida | Drona InfotechDrona Infotech
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4. Ingredient: Multi-Sig
● Introduced in BIP 11 (Oct 2011)
● OP_CHECKMULTISIG
● Requires M-of-N keys to sign
● Eliminates a single point of failure (the key)
● Direct use supplanted by indirect (P2SH)
5. Ingredient: P2SH
● Introduced in BIP 16 (Mar 2012)
o P2PKH: 1DRW7nQ4adMk7xPTXf2KeB7AxzDtX1fNrU
o P2SH: 3Q8pEaNZeaC6pHtaFRsTUrFhdrH8e6hkBe
● ~8% of bitcoin currently in P2SH addresses
● Mainly used for multi-sig today
6. The Recipes
● Use basic ingredients of P2SH and multi-sig
● Add additional techniques
● Describe security for a single wallet
● Combine recipes as necessary
7. But First: Multi-Sig Diagrams
● Single key is easy to reason about
● Multi-sig => Combinatorial explosion
● Need a visual language
● Represent as graphs
o Nodes = entities
o Directed edges = control (full or partial)
15. Ingredient: Co-Signing Service
● 2 keys held by customer, 1 key by
service
● User creates and half-signs transaction,
then sends to co-signer
● Co-signer executes security and logic
17. Co-Signed Wallet Example
● Core model for all BitGo wallets
● Enables additional control / security
o Require 2FA from user
o Time-delays / out-of-band notification
o Transaction velocity limits
o White/black-listing of addresses
o Apply fraud detection algos
19. ● Per-day limits / Per-transaction limits
● Destination bitcoin address whitelists
● Time of day restrictions
● Human approvals - User/password/2FA
● Red button (kill switch)
● Blacklisting, IP lockdown, ...
● External webhooks
BitGo Co-Signer Logic
20. Corporate Treasury
● Multiple users on a wallet
o Require 2FA and User Auth
● Lower level emp can spend limited amounts
● CEO, CFO able to approve large withdrawals
● Can add/remove privileges of users at any time
● Example customers: SecondMarket, ChangeTip, BitFury
21. ATM Provider
● Shared wallet with multiple machines
● One access token per machine
● IP lockdown for each token
● Tokens may be individually revoked
● Example customers: Lamassu ATMs
22. Exchange Hot Wallet
● Per-day limit
● Callback via webhook
● Enforce human approver for large transactions
● Examples: Bitstamp, BitSpark, BitQuick
23. Exchange-owned Segregated Wallet
● One wallet per exchange user
● Per-user-wallet policy granularity
● Withdrawals require user 2FA
● Transactions to house wallet whitelisted
25. Exchange+User Joint Wallet
● User and exchange each own a private key
● Instant confirmation
● Withdrawals depend on
o Webhook call to exchange to ensure user has
sufficient margin
26. We Want to Work with You
How can we help you?
● Co-develop new recipes
● Enhance your security
● Improve your operational efficiency
(Delivered at Boost, Mar 17 2015)
Hi everyone, my name is Ben Davenport
I’m co-founder and Chief Product Officer at BitGo
(My history with Bitcoin / BitGo)
Keys to cooking: know your ingredients, your techniques, and how to combine them into great recipes
Same for building secure systems: understand the building blocks & how to put them together successfully.
Follow proven recipes for security where possible -- generally innovate on product, not security.
The first standard BIP
Con: pubkeys are revealed in blockchain prior to spending (inferior to P2PKH)
Bigger con: communicating payment instructions from recipient to sender (no longer an address)
Never achieved much adoption, problems were solved by P2SH
P2SH was developed in 2012, in BIP16
Allows recipient to give sender arbitrary Bitcoin script hash to receive payment -- sender doesn’t care what the script looks like.
Helps retain the useful fiction of addresses that have balances - they just look different
Moves fee burden due to script complexity to recipient
Amount held in P2SH addresses is only around 8%. Many people haven’t moved their coins out of single key addresses yet. Inertia is powerful.
Single key addresses are risky because of the rising amount of hacks, malware and viruses out there today targeting Bitcoin.
No single online machine can be considered uncompromisable
The only truly ‘safe’ move with a single key address setup is to hold coins it in cold storage and not use them.
Cold / hot model is inherently a pooled, off-blockchain approach: we can do better
P2SH and multi-sig allow for new ways to use Bitcoin in a more secure fashion.
We’ll now take a look at several multi-sig concepts and scenarios that have emerged or are emerging today.
We’ll add additional techniques which help provide access control and eliminate single points of failure
Recipes are typically describing security model of a single wallet or scenario
A real business will ultimately need to expand these recipes and/or combine a number of recipes
Single key systems are pretty simple - not many ways to combine them.
Multi-sig recipes can have many more moving parts
There’s a fundamental combinatorial explosion
It’s useful to have a visual design language to understand how the pieces of the system relate
Bitcoin is controlled by 1 key
Key is controlled by 1 user
As simple as it gets
Only way it gets simpler is if the user loses his key, or gets hit by a bus
A single user controls 2 keys, both of which are required to move the bitcoin
They better be on different devices, because otherwise, why bother?
Better than single key, because multiple machines would need to be compromised
Note: still potentially a single point of failure (the user)
A number of different ways to approach this
Started out very raw & manual with BitcoinD, improving over time
Essentially using multi-sig as “2FA for Bitcoin”
Hardware wallets are a great step forward in security + ease of use
Private keys never leave the device during signing (but allow for initial backup via seed)
Good for humans, not very usable in an automated environment
Keys are still on different devices, but now also controlled by separate users
2-of-2 is the simplest model, but has no room for error
What if Alice or Bob loses a key or becomes hostile?
What if Bob is involved in a tragic kayaking accident?
Copay (BitPay) has led the way developing this multi-user peer-to-peer model
Has some limitations in terms of coordination
Downsides:
Cannot change signers once address created
All signers are equally important
Collusion risk
Temporary wallet for escrow of funds vs. a promised real-world delivery of goods
WIth bitcoin, for the first time ever, the escrow agent can never steal the funds!
Only needs to be trusted to arbitrate fairly.
Arbitrator has a single key and can co-sign for buyer or seller
Users have indirect control over the arbitrator by giving their okay or disputing the transaction
This was seen as a potential huge use case seen for multi-sig
Assumed people would be doing significant volume of peer-to-peer purchases
Well, they were, but mostly drugs.
Currently a technology in search of a truly successful P2P market
A brief diversion to explain smart co-signing services...
Also known as oracles (as proposed originally by Mike Hearn)
A co-signing service typically holds 1 key, but could hold more
Job of the oracle is to co-sign transactions when instructed by the user, but only under certain conditions
Allows layering more subtle security policies on a wallet
Let’s first see how it improves things for a single-user wallet
When a user wants to spend funds, they create a transaction and sign it, then pass it on to the service for co-signing & submission
Oracle represented by “O” here
2-of-3 model. In this example, user is in control of 2, while oracle holds 1.
User maintains 1 key online, and 1 key offline as a cold backup
Similar to escrow model, oracle need not be trusted not to steal funds.
User maintains full custody in a mathematical sense
We’ve now introduced a second user into the picture
The situation is quite a bit more complex than the joint wallet we saw previously
Note that both users share a single key
We’ve also introduced a custodian (C) who is responsible for holding a cold backup key
The custodian has a contract with one or more of the users, or the company they work for
Will release key for disaster recovery under certain circumstances
The users, since they share a single key, cannot collude to take funds “outside the system”
The signing oracle can require multiple users to approve a given transaction or policy change
Benefit: Adding new users to a wallet is possible
Benefit: Users can have different levels of access rights
Before co-signing BitGo runs a set of automated policies and rules before sending a transaction to the network.
Some of these rules help security while others bridge external state (contracts) onto bitcoin.
Every bitcoin application is different, and you can customize your policies. Even the most basic of policies like a day limit would improve security by leaps and bounds over single-key.
The co-signer model is possibly the most powerful multi-sig concept because logic can now happen externally to the blockchain,
It is still secure because the co-signer cannot access the funds, only veto or approve transactions.
Let’s take a look at some of the scenarios now possible with the cosigner.
This model is great because you are able to change number of approvers
More typical to match a company hierarchy
Pros: stops hackers who steal private keys, no inside jobs
Multiple machine are set up with an access tokens each
Each token IP locked down to the machine
If a machine is lost, tokens may be individually revoked
Pros: shared balance, no need to keep capital funds on each machine
Also can set up:
Time of day restrictions, transaction limits
humans able to approve
This is currently the most common exchange multi-sig integration - its used with bitstamp
The exchange manages a hot wallet with funds for deposits and withdrawals
Outgoing withdrawals can be limited to a certain amount per day to minimize losses.
The co-signer can also make an automated request callback to the exchange out of band to confirm each transaction on the accounts database
Tihs helps when the accounts database is on a separate machine from the machine sending the coins
Pros: quick integration path with bitcoind
I’ll also show a demo of an exchange integration later
Up-and-coming model
Exchange maintains a wallet for each user with the co-signer
Per-user-wallet policy granularity
Transactions to settlement wallet whitelisted
Co-signer can require user’s 2FA for withdrawals
Remember that the exchange owns the keys, so they can debit the balance.
Support margin trading, cases where user does not close trade
Pros: Full control by exchange but with security policies
Cons: Hard work compared to pooled wallets, customer does not own key
Here’s an example of a specific model we’re actively developing at BitGo
Exchange end-user does not have a key, but can auth to BitGo (oracle)
The exchange can initiate transactions to the settlement wallet
Withdrawals to external address are initiated by user thru exchange
Exchange acts on behalf of user via OAuth to BitGo, passing thru user’s 2FA
A future model
User and exchange each have their own private key
Outstanding sell orders lock up margin (off-blockchain)
Withdrawals gated on
Webhook call to exchange to ensure that the user has sufficient margin to be able to withdraw
Additional policies added by the user and their 2FA
Pro: Funds recoverable if exchange goes down
Con: more burden on customer to maintain key