# proof of authority Published articles for proof of authority. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Ultimate Go: Advanced Engineering Episode 7 DevFeed: [Ultimate Go: Advanced Engineering Episode 7]() Original publisher: [Read original article]() Published: 2022-12-19T00:00:00Z Content type: tutorial Language: en Sources: [William Kennedy]() Topics: [Blockchain](), [Databases](), [Data structures](), [Algorithms]() Tags: [2](), [audits](), [batch](), [batch-insert](), [bulk-upload](), [caching](), [consensus](), [consensus-algorithm](), [data-structures](), [databases](), [distributed](), [efficiency](), [engineering](), [go-blockchain](), [memory-pool](), [poa](), [pos](), [pow](), [proof-of-authority]() ### AI overview This video walkthrough explains how a proof-of-authority consensus mechanism affects a dependency manager's database throughput. It introduces a synchronized memory pool for queued records, reduces duplicate insertion work across nodes, and explains how batches of records become blockchain blocks and can be audited. ### Source excerpt Introduction In episode 6, Bill gives an overview of what consensus algorithms are and how these algorithms ensure distributed databases are in sync. Moving forward Bill will adopt the proof of authority (PoA) algorithm as a means to determine which node has the ability to write the next record. To jog your memory, PoA is a consensus mechanism where identity is used as a stake. By implementing this algorithm, Bill will add transparency to his dependency manager as he is no longer the only user with the ability to add new records. The dependency manager now meets the teams' requirements for transparency, however, it will have low throughput since only one record can be shared and inserted at a time. ## Ultimate Go Episode 6: Blockchain Consensus Algorithms DevFeed: [Ultimate Go Episode 6: Blockchain Consensus Algorithms]() Original publisher: [Read original article]() Published: 2022-12-16T00:00:00Z Content type: tutorial Language: en Sources: [William Kennedy]() Topics: [Blockchain](), [Algorithms](), [Security](), [data]() Tags: [algorithms](), [blockchain](), [consensus](), [consensus-algorithm](), [distributed](), [go-blockchain](), [golang-blockchain](), [poa](), [pos](), [pow](), [proof-of-authority](), [proof-of-work](), [security]() ### AI overview This video explains why proof of work can be inefficient as a blockchain grows, focusing on duplicated computation and energy consumption. It introduces proof of stake and proof of authority as alternative consensus algorithms and discusses their role in maintaining valid data in a distributed database. ### Source excerpt Introduction In the last video, Bill left off talking about proof of work (PoW) algorithms. In a distributed and decentralized environment, PoW used to be the gold standard for a node to participate equitably in a Blockchain. However, with PoW as the number of nodes on the Blockchain increases, the amount of energy waste increases. This is because each node is performing the same computationally heavy calculation and only one node's energy usage is leveraged to write the next block. ## Ultimate Go: Advanced Engineering Episode 5 DevFeed: [Ultimate Go: Advanced Engineering Episode 5]() Original publisher: [Read original article]() Published: 2022-12-16T00:00:00Z Content type: tutorial Language: en Sources: [William Kennedy]() Topics: [Blockchain](), [Databases](), [Replication]() Tags: [atomic](), [consensus](), [consensus-algorithm](), [cryptographically-auditable](), [database](), [distributed](), [engineering](), [go-blockchain](), [golang-blockchain](), [poa](), [pos](), [pow](), [proof-of-authority](), [proof-of-work]() ### AI overview This video explains how to use blockchain concepts to design a distributed, auditable, synchronized, and scalable database for a dependency manager. It focuses on atomic writes, consensus, and a proof-of-work algorithm, while also discussing the inefficiency of proof of work and the emergence of proof of stake and proof of authority. ### Source excerpt Introduction In case you missed episode 4, Bill attempted to integrate current database sharing solutions to solve the "database ownership" problem his dependency manager faces. He tried providing copies of the database, implementing a load balancer and replication. While performing these experiments, Bill identified the qualities his dependency manager's database needs to have for users to trust it. He closed episode 4 by stating that his dependency manager needs a database that is distributed, cryptographically auditable, synchronized and scalable. By implementing this Bill hoped to provide greater transparency for his dependency manager. ## Sepolia Merge Announcement DevFeed: [Sepolia Merge Announcement]() Original publisher: [Read original article]() Author: EF Protocol Support Published: 2022-06-30T00:00:00Z Content type: release Language: en Sources: [Ethereum Foundation Blog]() Topics: [Ethereum](), [Network](), [releases]() Tags: [beacon](), [consensus](), [ethereum](), [network](), [proof-of-authority](), [proof-of-work](), [protocol-announcements](), [releases]() ### AI overview Ethereum announces the next phase of the Sepolia testnet's transition from proof-of-work to proof-of-stake as part of The Merge. The transition is triggered by a Terminal Total Difficulty threshold, following the Bellatrix upgrade on the Sepolia Beacon Chain. ### Source excerpt Note: on July 5, 2022, the recommended releases for go-ethereum and Erigon were modified. See "Client Releases" for details. Sepolia will be the second of three public testnets to run through The Merge. The network will transition to proof-of-stake when the total difficulty on the proof-of-work chain exceeds 17,000,000,000,000,000, which... ## Ethereum Dev Roundup: Q1 DevFeed: [Ethereum Dev Roundup: Q1]() Original publisher: [Read original article]() Author: Vitalik Buterin Published: 2017-04-01T02:55:28Z Content type: opinion Language: en Sources: [Ethereum Foundation Blog]() Topics: [Ethereum](), [Development](), [Algorithms](), [Formal verification](), [zero-knowledge]() Tags: [algorithms](), [attacks](), [consensus](), [dev](), [ethereum](), [formal-verification](), [immutability](), [implementation](), [metropolis](), [privacy](), [proof-of-authority](), [protocol](), [research](), [research-development](), [state](), [verification](), [zero-knowledge]() ### AI overview An Ethereum development roundup discusses research progress in consensus algorithms, privacy, zero-knowledge proofs, and formal verification, alongside proposed changes involving proof of authority, transaction reversion, Metropolis, and protocol rules. ### Source excerpt The last one and a half months have seen great progress for Ethereum research, and we are excited that the protocol is moving closer and closer to the point where it is ready for mainstream adoption. Progress on consensus algorithms, privacy, zero knowledge proofs and formal verification is happening at...