This document discusses using blockchain technology to create a decentralized and authenticated alert network. It proposes storing alert messages as "assets" on a blockchain, with publishers and subscribers as participants. Key transactions would include publishing, updating, deleting alerts, and acknowledging receipt. This could provide reliable attribution, integrity and help scale alerting beyond traditional systems by allowing many-to-many communication. However, some open questions remain around transaction speed and how well existing blockchain platforms model alert messaging requirements. The document also explores using the Interplanetary File System (IPFS) as an alternative to blockchains for an immutable and decentralized storage and distribution of alerts.
Blockchain technology in Agriculture: Applications, Impact and futureIRJET Journal
Blockchain technology has the potential to significantly transform the agricultural industry by addressing several challenges. The document discusses applications of blockchain in agriculture such as improving food safety and quality tracking, enhancing supply chain traceability from farm to fork, increasing farm productivity, and enabling more equitable payments to farmers. It provides an overview of blockchain components like distributed ledgers and smart contracts. Public, private and permissioned blockchain networks are described. Overall, the document argues that blockchain can benefit agriculture by creating an immutable record of transactions to build trust between parties in the complex agricultural supply chain.
Decentralized exchange-Banco: presented by PentagonLuyaoZhangPhD
Here are the key points discussed:
- Discussed the project topic and divided tasks
- Brian will research on the background and key information of Bancor
- 吴希婷 will focus on the cons of Bancor
- 董欣怡 will collect information on the key partners
- 焦月诣 will work on the presentation slides
- Set up a schedule to exchange information before the deadline
All members showed good cooperation and understanding of each other's strengths. The meeting ended smoothly with clear tasks and timeline.
This document discusses the application of blockchain technology in international logistics. It begins with an agenda for a presentation on this topic, including definitions of blockchain, global developments, industry applications, and benefits of implementation. It then describes DP World's Cargoes Datachain solution, which applies blockchain for supply chain data sharing, tracking shipping milestones, and facilitating automated processes. Benefits include near real-time secure data sharing across organizations and tracking every step in the shipping process. The key elements of blockchain discussed are the distributed ledger allowing a single record of transactions, use of smart contracts to automate processes, and immutable transaction records. Blockchain is suited for use cases involving multiparty data sharing where there is no mutual trust.
Introduction to Big Data Analytics: Batch, Real-Time, and the Best of Both Wo...WSO2
In this webinar, Srinath Perera, director of research at WSO2, will discuss
Big data landscape: concepts, use cases, and technologies
Real-time analytics with WSO2 CEP
Batch analytics with WSO2 BAM
Combining batch and real-time analytics
Introducing WSO2 Machine Learner
The document discusses an "information sharing pipeline" which would allow real-time sharing of identity information between institutions and applications. It describes existing standards like WebSub, ActivityPub and Linked Data Notifications that could enable this. The presenters argue for adopting these open standards to allow decentralized data ownership and exchange, rather than relying on centralized systems. Challenges include political and intellectual property issues, but benefits include breaking down data silos and enabling innovation. The document outlines the key components of various standards and evaluates their potential for building an information sharing pipeline.
Presentation of Ceilometer (OpenStack Telemetry) new features in OpenStack Havana and a look at the features coming in IceHouse. Joint presentation done with Julien Danjou at the OpenStack In Action 4 (Dec 5th 2013)
RefugeeDo is a decentralized job marketplace that uses blockchain and artificial intelligence to connect refugees to jobs worldwide. It aims to address the high unemployment rates among refugees by providing a platform where refugees can create profiles, search and apply for jobs, and where employers can post open positions. The platform uses a mixed architecture where users interact both directly with smart contracts on the blockchain as well as through a backend server. It stores job postings on IPFS and user data such as profiles, applications, and reviews on Ethereum smart contracts to ensure security and transparency. The goal is to leverage new technologies like blockchain and AI to help tackle the global refugee crisis and enable refugees to contribute economically to their host countries.
The Global Crypto Classification Standard by 21Shares & CoinGeckoCoinGecko
We are pleased to release the Global Crypto Classification Standard (GCCS) jointly developed by 21Shares and CoinGecko, which serves as an industry taxonomy and uniformed way to categorize cryptoassets.
Crypto, with its unfamiliar technology stack and sheer number and variety of projects and tokens, terminology and jargon, may be daunting and overwhelming to industry newcomers. The GCCS provides a clear framework to classify various projects and cryptoassets within the space, so that users and investors can easily identify what a project does, and where they sit as part of the larger crypto stack.
Read more: https://www.coingecko.com/research/publications/global-crypto-classification-standard
Blockchain technology in Agriculture: Applications, Impact and futureIRJET Journal
Blockchain technology has the potential to significantly transform the agricultural industry by addressing several challenges. The document discusses applications of blockchain in agriculture such as improving food safety and quality tracking, enhancing supply chain traceability from farm to fork, increasing farm productivity, and enabling more equitable payments to farmers. It provides an overview of blockchain components like distributed ledgers and smart contracts. Public, private and permissioned blockchain networks are described. Overall, the document argues that blockchain can benefit agriculture by creating an immutable record of transactions to build trust between parties in the complex agricultural supply chain.
Decentralized exchange-Banco: presented by PentagonLuyaoZhangPhD
Here are the key points discussed:
- Discussed the project topic and divided tasks
- Brian will research on the background and key information of Bancor
- 吴希婷 will focus on the cons of Bancor
- 董欣怡 will collect information on the key partners
- 焦月诣 will work on the presentation slides
- Set up a schedule to exchange information before the deadline
All members showed good cooperation and understanding of each other's strengths. The meeting ended smoothly with clear tasks and timeline.
This document discusses the application of blockchain technology in international logistics. It begins with an agenda for a presentation on this topic, including definitions of blockchain, global developments, industry applications, and benefits of implementation. It then describes DP World's Cargoes Datachain solution, which applies blockchain for supply chain data sharing, tracking shipping milestones, and facilitating automated processes. Benefits include near real-time secure data sharing across organizations and tracking every step in the shipping process. The key elements of blockchain discussed are the distributed ledger allowing a single record of transactions, use of smart contracts to automate processes, and immutable transaction records. Blockchain is suited for use cases involving multiparty data sharing where there is no mutual trust.
Introduction to Big Data Analytics: Batch, Real-Time, and the Best of Both Wo...WSO2
In this webinar, Srinath Perera, director of research at WSO2, will discuss
Big data landscape: concepts, use cases, and technologies
Real-time analytics with WSO2 CEP
Batch analytics with WSO2 BAM
Combining batch and real-time analytics
Introducing WSO2 Machine Learner
The document discusses an "information sharing pipeline" which would allow real-time sharing of identity information between institutions and applications. It describes existing standards like WebSub, ActivityPub and Linked Data Notifications that could enable this. The presenters argue for adopting these open standards to allow decentralized data ownership and exchange, rather than relying on centralized systems. Challenges include political and intellectual property issues, but benefits include breaking down data silos and enabling innovation. The document outlines the key components of various standards and evaluates their potential for building an information sharing pipeline.
Presentation of Ceilometer (OpenStack Telemetry) new features in OpenStack Havana and a look at the features coming in IceHouse. Joint presentation done with Julien Danjou at the OpenStack In Action 4 (Dec 5th 2013)
RefugeeDo is a decentralized job marketplace that uses blockchain and artificial intelligence to connect refugees to jobs worldwide. It aims to address the high unemployment rates among refugees by providing a platform where refugees can create profiles, search and apply for jobs, and where employers can post open positions. The platform uses a mixed architecture where users interact both directly with smart contracts on the blockchain as well as through a backend server. It stores job postings on IPFS and user data such as profiles, applications, and reviews on Ethereum smart contracts to ensure security and transparency. The goal is to leverage new technologies like blockchain and AI to help tackle the global refugee crisis and enable refugees to contribute economically to their host countries.
The Global Crypto Classification Standard by 21Shares & CoinGeckoCoinGecko
We are pleased to release the Global Crypto Classification Standard (GCCS) jointly developed by 21Shares and CoinGecko, which serves as an industry taxonomy and uniformed way to categorize cryptoassets.
Crypto, with its unfamiliar technology stack and sheer number and variety of projects and tokens, terminology and jargon, may be daunting and overwhelming to industry newcomers. The GCCS provides a clear framework to classify various projects and cryptoassets within the space, so that users and investors can easily identify what a project does, and where they sit as part of the larger crypto stack.
Read more: https://www.coingecko.com/research/publications/global-crypto-classification-standard
"Does blockchain hold the key to a new age of supply chain transparency and t...eraser Juan José Calderón
The report, "Does blockchain hold the key to a new age of supply chain transparency and trust?", provides a comprehensive overview into the businesses and geographies that are ramping up their blockchain readiness, and predicts that blockchain will enter mainstream use in supply chains by 2025. Currently, just 3% of organizations that are deploying blockchain do so at scale and 10% have a pilot in place, with 87% of respondents reporting to be in the early stages of experimentation with blockchain.
The UK (22%) and France (17%) currently lead the way with at-scale and pilot implementation1 of blockchain in Europe, while the USA (18%) is a front-runner in terms of funding blockchain initiatives. These "pacesetters"2 are optimistic that blockchain will deliver on its potential, with over 60% believing that blockchain is already transforming the way they collaborate with their partners.
The study also found that cost saving (89%), enhanced traceability (81%) and enhanced transparency (79%) are the top three drivers behind current investments in blockchain. Furthermore, blockchain enables information to be delivered securely, faster and more transparently. The technology can be applied to critical supply chain functions, from tracking production to monitoring food-chains and ensuring regulatory compliance. Enthused by the results they are seeing, the pacesetters identified in the study are set to grow their blockchain investment by 30% in the next three years.
4IRE Labs’ main focus is on finTech and supply chain. We have created an array of branded white-label products serving the crowdfunding, private blockchains and other applications. The Blockchain platforms we have experience with include: Ethereum, Quorum, Solidity, Hyperledger Fabric, Multichain, NEO, R3, Exonum, Monax.
Cold supply chain logistics using sensors, apache ni fi and the hyperledger f...MehulShah218
A cold chain is a temperature-controlled supply chain. An unbroken cold chain is an uninterrupted series of refrigerated production, storage and distribution activities, along with associated equipment and logistics, which maintain a desired low-temperature range. It is used to preserve and to extend and ensure the shelf life of products, such as fresh agricultural produce, seafood, frozen food, photographic film, chemicals, and pharmaceutical drugs. Cold chain logistics includes all of the means used to ensure a constant temperature for a product that is not heat stable, from the time it is manufactured until the time it is used. Trust in cold chain compliance is of high interest to consumers and regulatory agencies such as the FDA. An immutable blockchain network provides the transparency and trust in data for all concerned the cold chain logistics ecosystem.
In this session we will first examine cold chain logistics in greater detail in the pharmaceutical and food industry. This will be followed a demonstration of a full stack solution (to be open sourced after the event) that generates temperature data using sensors, ingests and orchestrates the data flow using NiFi, persists the data in the Hyperledger Fabric blockchain framework and displays the blockchain data using an Angular UI.
Defrag X Keynote: Deploying and managing Global Blockchain NetworkDuncan Johnston-Watt
Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It includes various blockchain frameworks, platforms and libraries for building blockchain applications and solutions. The Linux Foundation hosts the collaboration to provide an open, neutral environment for technical governance. Hyperledger aims to support blockchain applications across different sectors through standards, an open developer community, and enterprise-grade frameworks.
These are the slides from the keynote given by Cloudsoft's CEO, Duncan Johnston-Watt and Software Engineer Mike Zaccardo at Defrag X Conference in November 2016.
BLOCK512 is a blockchain consulting firm that provides insights, advisory services, and assistance with accelerating blockchain-optimized solutions. The document defines key blockchain concepts like distributed ledgers, consensus, smart contracts, and different types of cryptocurrencies. It also notes the significant estimated savings and investment that blockchain adoption could provide for banks and financial technology companies. The final sections discuss questions organizations should consider around how blockchain may impact their competitors, customers, processes, business models and leadership strategies.
OpenCryptoTrust (www.openCT.io) Blockchain for Modern Telecommunications has gone beyond the obvious initial applications of blockchain - decentralized immutable storage, identity management, peer-to-peer payments. We have modified the blockchain protocol itself to support ultra-secure data transport – and superior management overlay.
OpenCryptoTrust has developed both the underlying platform (a hybrid blockchain called OpenCT) and two “Killer Applications” that solve immediate problems and offer significant cost savings for Telco Carrier customers.
BaaT (Blockchain-as-a-Transport) revolutionizes the use the public Internet for inexpensive, secure, enterprise-grade, data communications at significant cost reduction from private circuits.
BD-WAN (Blockchain Defined Wide Area Networking) revolutionizes existing pricing strategies for bandwidth – supporting “bandwidth on demand” for private optical based circuits - the ability to charge customers for the bandwidth they use. Additionally, this product is superior to existing SD-WAN solutions – in terms of security, MPLS and/or Cloud routing and interoperability.
Smart City Lecture 4 - Harmonizing the Internet of ThingsPeter Waher
This document provides an overview of harmonizing the Internet of Things (IoT) for smart cities and societies. It discusses the vision of a smart city with ubiquitous access to interoperable sensors and data. It notes that while early projections forecasted massive IoT growth by 2020, development has not matched expectations due to a lack of standards. The document advocates for open, interoperable and secure IoT systems through the use of standards. It presents IEEE's work towards an IoT harmonization standard based on extending the XMPP protocol to bridge isolated IoT systems. Key aspects covered include communication patterns, security, decentralization and infrastructure services needed to support ownership and discovery of IoT devices.
WSO2 Complex Event Processor (WSO2 CEP) helps identify the most meaningful events and patterns from multiple data sources, analyze their impacts, and act on them in real time. 100% open source, it allows you a set up a more agile connected business, responding to urgent business situations with both speed and precision.
This document discusses seven real-world applications of blockchain technology that could significantly impact industries and markets. It analyzes how blockchain could enable new distributed power markets worth $2.5-7 billion annually by facilitating secure transactions between individuals on the electric grid. It also explores how blockchain-based identity and reputation management could accelerate the sharing economy, such as by generating $3-9 billion in additional travel booking fees through 2020. Other applications examined include reducing title insurance costs through more efficient property record verification, and lowering capital market post-trade costs by streamlining securities clearing and settlement. The document analyzes the opportunities and challenges associated with implementing blockchain solutions in these domains.
This document provides an overview of blockchain technology and its applications in international trade. It analyzes several global case studies of blockchain projects in supply chain transparency, traceability, trade finance, and trade portals. The case studies examine the benefits of blockchain as well as challenges faced during implementation. Lessons from the case studies are then discussed to evaluate blockchain platforms compared to traditional paper-based and centralized systems. The final section highlights key considerations for USAID in implementing blockchain technologies.
Serverless London 2019 FaaS composition using Kafka and CloudEventsNeil Avery
FaaS composition using Kafka and Cloud-Events
LOCATION: Burton & Redgrave, DATE: November 7, 2019, TIME: 2:30 pm - 3:15 pm
https://serverlesscomputing.london/sessions/faas-composition-using-kafka-and-cloud-events/
Serverless functions or FaaS are all the rage. By leveraging well established event-driven microservice design principles and applying them to serverless functions we can build a homogenous ecosystem to run FaaS applications.
Kafka’s natural ability to store and replay events means serverless functions can not only be replayed, but they can also be used to choreograph call chains or driven using orchestration. Kafka also means we can democratize and organize FaaS environments in a way that scales across the enterprise.
Underpinning this mantra is the use of Cloud Events by the CNCF serverless working group (of which Confluent is an active member).
Objective of the talk
You will leave the talk with an understanding of what the future of cloud holds, a methodology for embracing serverless functions and how they become part of your journey to a cloud-native, event-driven architecture.
This document provides information about a blockchain hackathon being organized by Luxoft, including:
- The hackathon will focus on applying blockchain to newer industries like education, healthcare, and smart mobility.
- It will include challenges in each of these areas and provide development networks for Ethereum and Hyperledger Fabric for participants to build solutions.
- Support materials include skeleton applications, network configurations, and a support channel for participants to get help during the hackathon.
Despite the fact that the Web3 developer ecosystem is a small part of the greater online developer ecosystem, it appears to be rapidly increasing, so it makes sense to try to figure out what makes up the Web3 tech stack. This is the main reason why companies have started investing their time in it. As a result of which various Web3 Development Company
have emerged as per the changing trends in the market.
“Real Time Machine Learning Architecture and Sentiment Analysis Applied to Fi...Quantopian
Presented at QuantCon Singapore 2016, Quantopian's quantitative finance and algorithmic trading conference, November 11th.
The vast proliferation of data related to the financial industry introduces both new opportunities and challenges to quantitative investors. These challenges are often due to the nature of big data and include: volume, variety, and velocity.
In this talk, Dr. Cheng will take the audience on a tour of the “big-data production line” in InfoTrie and show how the financial news collected from various and customizable sources are transformed into quantitative signals in a real-time manner. The talk will touch on various kind of topics like sentiment analysis, entity detection, topic classification, and big-data tools.
The document discusses HyperLedger Fabric, a permissioned blockchain framework. It provides an overview of key Fabric concepts including its architecture, components, transaction flow, and how it differs from other blockchain platforms like Ethereum. The summary is as follows:
[1] HyperLedger Fabric is a permissioned blockchain framework that uses channels and smart contracts called chaincode to allow for private and confidential transactions between specific network members.
[2] It has a modular architecture consisting of peers that host the ledger and chaincode, an ordering service to sequence transactions into blocks, and a certificate authority for identity management.
[3] Transactions in Fabric are validated by endorsing peers running chaincode, ordered into blocks by
This document provides an overview and summary of key concepts related to Hyperledger Fabric, a blockchain platform. It discusses how Fabric solves problems with existing systems by creating an immutable, shared ledger using blockchain technology. The key components of Fabric are peers that maintain the ledger, an ordering service that orders transactions into blocks, and a certificate authority for identity management. Smart contracts called chaincode define transactions and rules for updating ledger states. Channels provide private transaction ledgers for subsets of network members.
Talk at the 5th International Conference on Translating Voice Translating Regions: http://www.ucl.ac.uk/centras/translation-news-and-events/v-translating-voices
Common alerting protocol overview for pagasa 2016 [autosaved] [autosaved]Nuwan Waidyanatha
The document discusses the Common Alerting Protocol (CAP), which is a standard format for communicating hazard warnings across all media types. It was adopted by the World Meteorological Organization (WMO) for early warning systems. CAP allows communication of any hazard type to the public or designated groups. The document outlines CAP implementation in various countries and organizations, including the Philippines where CAP will be used to disseminate early warnings over the internet, smartphones, radio, and TV.
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The report, "Does blockchain hold the key to a new age of supply chain transparency and trust?", provides a comprehensive overview into the businesses and geographies that are ramping up their blockchain readiness, and predicts that blockchain will enter mainstream use in supply chains by 2025. Currently, just 3% of organizations that are deploying blockchain do so at scale and 10% have a pilot in place, with 87% of respondents reporting to be in the early stages of experimentation with blockchain.
The UK (22%) and France (17%) currently lead the way with at-scale and pilot implementation1 of blockchain in Europe, while the USA (18%) is a front-runner in terms of funding blockchain initiatives. These "pacesetters"2 are optimistic that blockchain will deliver on its potential, with over 60% believing that blockchain is already transforming the way they collaborate with their partners.
The study also found that cost saving (89%), enhanced traceability (81%) and enhanced transparency (79%) are the top three drivers behind current investments in blockchain. Furthermore, blockchain enables information to be delivered securely, faster and more transparently. The technology can be applied to critical supply chain functions, from tracking production to monitoring food-chains and ensuring regulatory compliance. Enthused by the results they are seeing, the pacesetters identified in the study are set to grow their blockchain investment by 30% in the next three years.
4IRE Labs’ main focus is on finTech and supply chain. We have created an array of branded white-label products serving the crowdfunding, private blockchains and other applications. The Blockchain platforms we have experience with include: Ethereum, Quorum, Solidity, Hyperledger Fabric, Multichain, NEO, R3, Exonum, Monax.
Cold supply chain logistics using sensors, apache ni fi and the hyperledger f...MehulShah218
A cold chain is a temperature-controlled supply chain. An unbroken cold chain is an uninterrupted series of refrigerated production, storage and distribution activities, along with associated equipment and logistics, which maintain a desired low-temperature range. It is used to preserve and to extend and ensure the shelf life of products, such as fresh agricultural produce, seafood, frozen food, photographic film, chemicals, and pharmaceutical drugs. Cold chain logistics includes all of the means used to ensure a constant temperature for a product that is not heat stable, from the time it is manufactured until the time it is used. Trust in cold chain compliance is of high interest to consumers and regulatory agencies such as the FDA. An immutable blockchain network provides the transparency and trust in data for all concerned the cold chain logistics ecosystem.
In this session we will first examine cold chain logistics in greater detail in the pharmaceutical and food industry. This will be followed a demonstration of a full stack solution (to be open sourced after the event) that generates temperature data using sensors, ingests and orchestrates the data flow using NiFi, persists the data in the Hyperledger Fabric blockchain framework and displays the blockchain data using an Angular UI.
Defrag X Keynote: Deploying and managing Global Blockchain NetworkDuncan Johnston-Watt
Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It includes various blockchain frameworks, platforms and libraries for building blockchain applications and solutions. The Linux Foundation hosts the collaboration to provide an open, neutral environment for technical governance. Hyperledger aims to support blockchain applications across different sectors through standards, an open developer community, and enterprise-grade frameworks.
These are the slides from the keynote given by Cloudsoft's CEO, Duncan Johnston-Watt and Software Engineer Mike Zaccardo at Defrag X Conference in November 2016.
BLOCK512 is a blockchain consulting firm that provides insights, advisory services, and assistance with accelerating blockchain-optimized solutions. The document defines key blockchain concepts like distributed ledgers, consensus, smart contracts, and different types of cryptocurrencies. It also notes the significant estimated savings and investment that blockchain adoption could provide for banks and financial technology companies. The final sections discuss questions organizations should consider around how blockchain may impact their competitors, customers, processes, business models and leadership strategies.
OpenCryptoTrust (www.openCT.io) Blockchain for Modern Telecommunications has gone beyond the obvious initial applications of blockchain - decentralized immutable storage, identity management, peer-to-peer payments. We have modified the blockchain protocol itself to support ultra-secure data transport – and superior management overlay.
OpenCryptoTrust has developed both the underlying platform (a hybrid blockchain called OpenCT) and two “Killer Applications” that solve immediate problems and offer significant cost savings for Telco Carrier customers.
BaaT (Blockchain-as-a-Transport) revolutionizes the use the public Internet for inexpensive, secure, enterprise-grade, data communications at significant cost reduction from private circuits.
BD-WAN (Blockchain Defined Wide Area Networking) revolutionizes existing pricing strategies for bandwidth – supporting “bandwidth on demand” for private optical based circuits - the ability to charge customers for the bandwidth they use. Additionally, this product is superior to existing SD-WAN solutions – in terms of security, MPLS and/or Cloud routing and interoperability.
Smart City Lecture 4 - Harmonizing the Internet of ThingsPeter Waher
This document provides an overview of harmonizing the Internet of Things (IoT) for smart cities and societies. It discusses the vision of a smart city with ubiquitous access to interoperable sensors and data. It notes that while early projections forecasted massive IoT growth by 2020, development has not matched expectations due to a lack of standards. The document advocates for open, interoperable and secure IoT systems through the use of standards. It presents IEEE's work towards an IoT harmonization standard based on extending the XMPP protocol to bridge isolated IoT systems. Key aspects covered include communication patterns, security, decentralization and infrastructure services needed to support ownership and discovery of IoT devices.
WSO2 Complex Event Processor (WSO2 CEP) helps identify the most meaningful events and patterns from multiple data sources, analyze their impacts, and act on them in real time. 100% open source, it allows you a set up a more agile connected business, responding to urgent business situations with both speed and precision.
This document discusses seven real-world applications of blockchain technology that could significantly impact industries and markets. It analyzes how blockchain could enable new distributed power markets worth $2.5-7 billion annually by facilitating secure transactions between individuals on the electric grid. It also explores how blockchain-based identity and reputation management could accelerate the sharing economy, such as by generating $3-9 billion in additional travel booking fees through 2020. Other applications examined include reducing title insurance costs through more efficient property record verification, and lowering capital market post-trade costs by streamlining securities clearing and settlement. The document analyzes the opportunities and challenges associated with implementing blockchain solutions in these domains.
This document provides an overview of blockchain technology and its applications in international trade. It analyzes several global case studies of blockchain projects in supply chain transparency, traceability, trade finance, and trade portals. The case studies examine the benefits of blockchain as well as challenges faced during implementation. Lessons from the case studies are then discussed to evaluate blockchain platforms compared to traditional paper-based and centralized systems. The final section highlights key considerations for USAID in implementing blockchain technologies.
Serverless London 2019 FaaS composition using Kafka and CloudEventsNeil Avery
FaaS composition using Kafka and Cloud-Events
LOCATION: Burton & Redgrave, DATE: November 7, 2019, TIME: 2:30 pm - 3:15 pm
https://serverlesscomputing.london/sessions/faas-composition-using-kafka-and-cloud-events/
Serverless functions or FaaS are all the rage. By leveraging well established event-driven microservice design principles and applying them to serverless functions we can build a homogenous ecosystem to run FaaS applications.
Kafka’s natural ability to store and replay events means serverless functions can not only be replayed, but they can also be used to choreograph call chains or driven using orchestration. Kafka also means we can democratize and organize FaaS environments in a way that scales across the enterprise.
Underpinning this mantra is the use of Cloud Events by the CNCF serverless working group (of which Confluent is an active member).
Objective of the talk
You will leave the talk with an understanding of what the future of cloud holds, a methodology for embracing serverless functions and how they become part of your journey to a cloud-native, event-driven architecture.
This document provides information about a blockchain hackathon being organized by Luxoft, including:
- The hackathon will focus on applying blockchain to newer industries like education, healthcare, and smart mobility.
- It will include challenges in each of these areas and provide development networks for Ethereum and Hyperledger Fabric for participants to build solutions.
- Support materials include skeleton applications, network configurations, and a support channel for participants to get help during the hackathon.
Despite the fact that the Web3 developer ecosystem is a small part of the greater online developer ecosystem, it appears to be rapidly increasing, so it makes sense to try to figure out what makes up the Web3 tech stack. This is the main reason why companies have started investing their time in it. As a result of which various Web3 Development Company
have emerged as per the changing trends in the market.
“Real Time Machine Learning Architecture and Sentiment Analysis Applied to Fi...Quantopian
Presented at QuantCon Singapore 2016, Quantopian's quantitative finance and algorithmic trading conference, November 11th.
The vast proliferation of data related to the financial industry introduces both new opportunities and challenges to quantitative investors. These challenges are often due to the nature of big data and include: volume, variety, and velocity.
In this talk, Dr. Cheng will take the audience on a tour of the “big-data production line” in InfoTrie and show how the financial news collected from various and customizable sources are transformed into quantitative signals in a real-time manner. The talk will touch on various kind of topics like sentiment analysis, entity detection, topic classification, and big-data tools.
The document discusses HyperLedger Fabric, a permissioned blockchain framework. It provides an overview of key Fabric concepts including its architecture, components, transaction flow, and how it differs from other blockchain platforms like Ethereum. The summary is as follows:
[1] HyperLedger Fabric is a permissioned blockchain framework that uses channels and smart contracts called chaincode to allow for private and confidential transactions between specific network members.
[2] It has a modular architecture consisting of peers that host the ledger and chaincode, an ordering service to sequence transactions into blocks, and a certificate authority for identity management.
[3] Transactions in Fabric are validated by endorsing peers running chaincode, ordered into blocks by
This document provides an overview and summary of key concepts related to Hyperledger Fabric, a blockchain platform. It discusses how Fabric solves problems with existing systems by creating an immutable, shared ledger using blockchain technology. The key components of Fabric are peers that maintain the ledger, an ordering service that orders transactions into blocks, and a certificate authority for identity management. Smart contracts called chaincode define transactions and rules for updating ledger states. Channels provide private transaction ledgers for subsets of network members.
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Talk at the 5th International Conference on Translating Voice Translating Regions: http://www.ucl.ac.uk/centras/translation-news-and-events/v-translating-voices
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The document discusses the Common Alerting Protocol (CAP), which is a standard format for communicating hazard warnings across all media types. It was adopted by the World Meteorological Organization (WMO) for early warning systems. CAP allows communication of any hazard type to the public or designated groups. The document outlines CAP implementation in various countries and organizations, including the Philippines where CAP will be used to disseminate early warnings over the internet, smartphones, radio, and TV.
The document discusses the development and implementation of the Common Alerting Protocol (CAP) system in the Philippines for weather alert messaging. It describes how PAGASA, the Philippines' weather agency, has worked with partners like Google and WMO to develop and launch CAP. Key events included the initial launch in 2014 during Tropical Storm Ruby, training workshops, and ongoing work to expand CAP alerts and involve other agencies. The goal is to provide authoritative weather warnings to the public through CAP.
The document discusses Sahana, an open source disaster management software, and its alerting and messaging broker component called SAMBRO. It provides information on SAMBRO's functions, architecture, capabilities to interconnect with other systems, and how it can improve situational awareness during disasters. It then outlines Sahana's work with the Department of Meteorology and Hydrology in Myanmar to implement SAMBRO, including training workshops, tests, and exercises carried out to integrate it into Myanmar's warning systems and processes. The document concludes with recommendations to expand the use of SAMBRO's common alerting protocol (CAP) standard in Myanmar.
The document discusses a workshop on improving institutional responsiveness to coastal hazards through multi-agency situational awareness using Common Alerting Protocol (CAP)-enabled technology. It outlines a SWOT analysis of the CAP-enabled Sahana Broker identifying advantages, disadvantages, potential troubles, and opportunities for improvement. It also lists 6 discussion points focused on developing a national CAP implementation profile, collaborating with stakeholders, addressing policy issues, training personnel, and revisiting project plans and activities.
The document discusses the Common Alerting Protocol (CAP) standard for multi-agency alerting and situational awareness across all hazards. CAP allows alerts to be disseminated through multiple channels including TV, radio, websites and cell phones. It is an XML-based format managed by OASIS that is recommended by ITU-T and follows NSTC principles. The document provides an example of an automated standard message in CAP and demonstrates delivering alerts through various channels using a CAP simulator tool. Resources for further information on CAP are also listed.
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Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
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1. Towards an Interplanetary
Alert Network
Clean up your CAP
Art Botterell, Dominic Konig, and Nuwan Waidyanatha
nuwan [at] sahanafoundation [dot] org
Filtered Alert Hub Workshop, Hong Kong Observatory, 2018
9. www.sahanafoundation.org Slide
Characteristics of Public Alert Systems
9
Relatively deep problem-clusters for public alerting generally:
1. Identity and reputation/credibility
2. Authenticated replication and reliable accessibility
3. Elimination of single points of failure
WMO Filtered Alert Hub and Register of Alerting Authorities are
addressing these in a very limited scope with limited actors.
How can we “include” others, minus the exclusivity/bureaucracy?
10. www.sahanafoundation.org Slide
Thinking futuristic and IOTs
10
What happens when IOTs become a forewarning mechanisms?
The problems:
1) IoT is facing a systemic issue of scaling but without sufficient device IDENTITY,
SECURITY, or INTEROPERABILITY in mind;
2) a world of device data being collected from billions of devices raises information
security and privacy concerns for individuals/corporations/governments;
3) the world is turning towards open-data initiatives but there is a lack of a
uniform approach;
4) blockchain technology and IoT offers a new world of promise, but no-one is
100% clear on how it will offer benefits.
- Credits: https://www.chainofthings.com/
11. www.sahanafoundation.org Slide
❏ “Authentication without Aggregation” - Inspiration largely by Wade Witmer Deputy
Director, IPAWS, FEMA
❏ “Intuition was blockchain technology might be a way to implement” - Art Botterell
❏ Primary tasks of an alerting system are:
❏ Reliable attribution of messages
❏ Attributing them to their authors
❏ Reliable message integrity
❏ All of which appear to come in the blockchain concept
❏ Also allows us to transcend our current mass-media paradigms of
❏ few-to-many alerting; to also begin to address many-to-few and many-to-many
applications
❏ Most of these are now the domain of emergency telephone number systems in much of
the world.
Why did we look towards Blockchains?
11
12. www.sahanafoundation.org Slide
The mesh of blockchains
12
Node
01
Node
02
Node
04
Node
03
USER
(e.g. CAP Author
Dept. of Met / Hydro)
Ledger Ledger
LedgerLedger
Publishing
Interface
USER
(e.g. HL7 patient
care device - IOT)
Publishing
InterfaceUse APIs to
talk with Node
Nodes talk
to establish
consensus
e.g. WMO
Filtered AlertHub
Media
(e.g Private Tweets,
BBC tweet)
USER
(e.g Health
Regulator)
Surveillance
Interface
Writes the confirmed
transaction as a new block
and updates other nodes
13. www.sahanafoundation.org Slide
➔ Business Blockchain Network
◆ anyone participating in the network publishing and consuming (incl. relaying/sharing) alerts
◆ Example: what we might call the AleN (or the Alert business Network)
➔ Decentralized network
◆ Peer-to-Peer network of computers publishing and consuming alerts
◆ Example: WMO Filtered AlertHub (CAP), Social Media streams, Community-based Alerting
➔ Asset
◆ Alert messages (or risk information)
◆ Example: each CAP message (payload) is an asset (i.e. trading messages)
➔ Participants
◆ Publishers and Subscribers (incl. relay/render entities)
◆ Example: Met / Hydro (publisher), Google Public Alerts (relay), Gov Officials (subscribers)
➔ Transactions
◆ Publisher - create, update, or delete and Subscriber - read or acknowledge messages
◆ Example: Met / Hydro update a CAP message and Gov Official acknowledges receipt
Blockchain concepts with Alerting in mind
13
14. www.sahanafoundation.org Slide
➔ Distributed ledger
◆ Immutable collection of message transactions
◆ Example: WMO Filtered Alerhub maintain who issued what warning when, why. and where
➔ Catalog the current State
◆ What is the current state of the messages and participants
◆ Example: message has expired (cap.info.expire < today)
➔ Chain code
◆ Business rules; i.e. encapsulated logic and policies
◆ Example: Subscriber type X can read asset Message type Y
➔ Consensus
◆ Mechanism for validating the messages; must be defined and implemented
◆ Example: use a voting method (thumbs up/down); check against WMO Register of Authorities
➔ Non-permissioned-networks (Non-governmental)
◆ Anonymous or un-official publishers
◆ Example: citizen tweeting a forest fire
Blockchain concepts w.r.t Alerting
14
18. www.sahanafoundation.org Slide
1. Can blockchain-based alerting “front end” take the place of our current generation
of alert aggregators?
a. Full nodes on the mesh to serve as read-only sources to drive traditional mass
dissemination systems
b. From a local view they’d seem just like current-gen aggregators
c. Create a globally accessible yet independent identity regime might lower barriers to
other inherently-transnational dissemination systems
d. Encourage adoption of modern alerting practice in less technically affluent parts of the
world
2. Would the propagation of alert message transactions over the major blockchain
platforms be speedy?
a. identified as a priority for further development (e.g. scaling horizontally with ‘Kafka’)
b. might stipulate having a “fast enough” blockchain in the near future
Questions to ask are
18
21. www.sahanafoundation.org Slide
Thoughts after the Hyperledger exercise
First: “Can Blockchain technology foster a decentralized, immutable, and
authenticated alert network?”
- Yes - but it may seem overly complex for simple messaging; although it provides the
indexing and parsing mechanisms.
- NO - because the standard Composer constructs don’t match our paradigm well; e.g.
creating a new Asset (message) for alert, update, error, cancel, doesn’t sound right?
Second attempt: “Can hash trees and cryptography, alone, foster a decentralized,
immutable, and authenticated alert network?”
- Yes/No - we stumbled upon IPFS;
- It can address the decentralized and immutable aspected
- but not the authentication; i.e. need to build a consensus layer (smart contracts)
- Moreover, we require a mechanism to index and parse for presentation
21
23. www.sahanafoundation.org Slide
CAP V1.1 vs V1.2
23
❏ There’s only minor difference
between CAP 1.1 and CAP 1.2
❏ XML structure and elements
are the same
❏ Difference is in a few index
values; e.g. ResponseType
❏ Safest remedy was to create
another XSLT specific to CAP 1.1
but COSTLY
❏ What happens when the next
version comes along?
More the 50% of the feeds
are from Meteoalarm
24. www.sahanafoundation.org Slide
Atom link type = CAP+XML
Section 2.3.1.2 specifically mentions the need to label type = application/cap+xml; in
this doc:
http://docs.oasis-open.org/emergency-adopt/cap-feeds/v1.0/cap-feeds-v1.0.html
24
<?xml version = '1.0' encoding = 'UTF-8' standalone = 'yes'?>
<feed xmlns="http://www.w3.org/2005/Atom">
<id>http://www.pagasa.dost.gov.ph/</id>
<title>PAGASA CAP FEED</title>
<updated>2018-11-01T05:08:40+08:00</updated>
<entry>
<id>c0762af0-c672-47f8-ac4c-2888425f9355</id>
<title>GFA #8 (Final) - Region 3 (Central Luzon)</title>
<updated>2018-11-01T05:08:40+08:00</updated>
<author><name>PAGASA DOST</name></author>
<link type="application/cap+xml"
href="https://publicalert.pagasa.dost.gov.ph/output/gfa/c0762af0-c672-47f
8-ac4c-2888425f9355.cap"/>
</entry>
Like this
25. www.sahanafoundation.org Slide
Validation Errors
identifier: Cannot be empty and Must not include spaces,
commas, or restricted characters (< and &).
Every value has a end of line (n) character at the
beginning and end
<identifier>
NOAA-NWS-ALERTS-MN125AAAFF1B50.FlashFloodWatch.125AAB0BE4
C0MN.FSDFFAFSD.832f4e02ae3ea20c1e028509da48aa62
</identifier>
<sender>
w-nws.webmaster@noaa.gov
</sender>
<sent>
2018-06-26T03:41:04+00:00
</sent>
Source: NOAA Weather Services
https://alerts.weather.gov/cap/wwacapget.php?x=MN125AAAFF1B50.FlashFloodWatch.125AAB0BE4C0MN.F
SDFFAFSD.832f4e02ae3ea20c1e028509da48aa62
25
Google CAP Validator
26. www.sahanafoundation.org Slide
Message expiration
Shouldn’t the recipient determine expiration; i.e.
expire < now()
Example:
https://alerts.weather.gov/cap/wwacapget.php?x=NC12
5ABC38281C.FlashFloodWatch.125ABC7375C0NC.G
SPFFAGSP.47559968ec3a2d08871c02fb9650cb7e
<note>This alert has expired</note>
<effective> </effective>
<expires> </expires>
26
27. www.sahanafoundation.org Slide
Language codes
● zh-tw should be zh-TW
○ IANA Subtag Registry
(http://www.iana.org/assignments/language-
subtag-registry/language-subtag-registry )
○ Type: region: TW; Tag: zh-Han-TW;
Description: Taiwan Chinese in traditional
● ES-419 Spanish appropriate for the Latin
America and Caribbean region
○ Has ITU-D document mis quoted the ISO
639-2 as the language, where the standard
represents the 2 letter code for the region
(not language) ?
Source: https://www.itu.int/dms_pub/itu-d/opb/stg/D-STG-SG02.22-2010-PDF-E.pdf
27
https://alerts.ncdr.nat.gov.tw/Capstorag
e/WRA/2018/Flood/WRA_FloodWarn_2
01806221350.cap
<alert
xmlns="urn:oasis:names:tc:emergency:
cap:1.2">
<identifier>WRA_FloodWarn_201806
221350</identifier>
<info>
<language>zh-tw</language>
<category>Met</category>
<event>淹水</event>
29. www.sahanafoundation.org Slide
Chrome translation works a lot better
29
Its an indication that machine
translation might work with
presenting the data in English to
assist with the required
classification we desire.
30. www.sahanafoundation.org Slide
Web URL
<alert xmlns="urn:oasis:names:tc:emergency:cap:1.2">
<identifier>2.49.0.0.528.0.NL.181031224826.2_FX_HVH</identifier>
<info>
<language>ne-NL</language>
<event>Moderate Wind warning</event>
<web>http://meteoalarm.eu/ne_NL/0/0/NL802-Hoek van Holland.html</web>
CORRECT: http://meteoalarm.eu/ne_NL/0/0/NL802-Hoek%20van%20Holland.html
30
31. www.sahanafoundation.org Slide
403 Forbidden: Access is denied
http://capcp2.naad-adna.pelmorex.com/2018-06-24/201
8_06_24T15_05_26_00_00Iurn_oid_2.49.0.1.124.31601
45913.2018.xml
2018-06-24 23:24:23 S3LOG ERROR: HTTP 403: <!DOCTYPE
html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=iso-8859-1"/>
<title>403 - Forbidden: Access is denied.</title>
31
Visible in browser
33. www.sahanafoundation.org Slide
❏ Very descriptive event and short headline http://feeds.enviroflash.info/cap/aggregate.xml
<cap:sender>http://www.airnow.gov</cap:sender>
<cap:event>Ozone is forecast to reach 114 AQI - Unhealthy for Sensitive Groups on Sat
10/27/2018. </cap:event>
<cap:headline>Air Quality Alert for C San Bernardino M</cap:headline>
Event vs Headline
33
❏ Headline and Eventare the same
https://publicalert.pagasa.dost.gov.ph/output/gfa/282861ba-f01c-4253-b3a1-a8c5c7367a57.cap
<sender>PAGASA-DOST</sender>
<event>General Flood Advisory (Final)</event>
<headline>General Flood Advisory (Final)</headline>
Event element was intended to describe the “hazard event”?
34. www.sahanafoundation.org Slide
Conclusions
1) The CAP standard offers a basis for evaluating the cleanliness of Interplanetary
Alert Network (AleN) messages for a reliable indexing
2) There’s a need to study non-governmental alert originators (CBO scientific or
other) for a richer AleN
3) WMO Filtered Alert Hub is a good start towards fostering a futuristic Alert Network
for authentication without aggregation
a) The WMO Filtered Alert Hub might consider a consensus mechanism to vote
in/out or comment on currently syndicated alerts
b) That may help Clean up the CAP?
c) Cleaner filtering of messages; e.g. towards a global Event Type list
34