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ERC-721 implementation requires "name" and "symbol" identifiers, and the token is assigned a contract address upon deployment to the blockchain. [ 23 ] [ 24 ] Also, a mechanism to implement a URI (Uniform Resource Identifier) to the contract, is defined in the standard, providing functionality to assign each NFT unique metadata .
The Poly Network exploit was an attack conducted by anonymous hackers on August 10, 2021. The attack transferred over $610 million in digital cryptocurrency to the hackers. All assets were returned to Poly Network over the following 15 days. It was one of the largest security incidents in DeFi's history in terms of mark-to-market value.
The Polygon network aims to address problems within the Ethereum platform, namely high transaction fees and slow processing speeds. [ 1 ] In January 2024, Polygon announced a new protocol called AggLayer that aims to aggregate zero-knowledge proofs ( ZK-proofs ) from multiple blockchains and allow developers to connect layer 1 and 2 blockchains ...
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USDC operates as an Ethereum ERC-20 token and is also available on several other blockchain platforms such as Base and Polygon. [ 2 ] [ 3 ] Visa initiated a pilot program to send USDC via the Solana blockchain to payment firms Worldpay and Nuvei , who could then transfer payment to merchants.
There are two types of accounts on Ethereum: user accounts (also known as externally-owned accounts), and contract accounts. Both types have an ETH balance, may transfer ETH to any account, may execute the code of another contract, or create a new contract, and are identified on the blockchain and in the state by an account address. [64]
Ethereum Classic is a blockchain-based distributed computing platform that offers smart contract (scripting) functionality. [1] It is open source and supports a modified version of Nakamoto consensus via transaction-based state transitions executed on a public Ethereum Virtual Machine (EVM).
ETH. ETH 1.0 - PoW with Nakamoto consensus, ETH 2.0 - PoS with supermajority Yes No No ETH 1.0 Probabilistic, ETH 2.0 Economic Account-balance ETH is the second most valuable token in terms of market share; switched to PoS (the “merge”) on September 15, 2022; progenitor of Ethereum Classic [1] [6] Arbitrum? Offchain Labs ETH: Optimistic ...