{"id":"ktAPDiGGR0Q","title":"Simplifying Multi-Chain Signing with Smart Contracts","description":"This video breaks down how smart contracts manage multi-chain signatures using key derivation. We explore how a single smart contract can handle requests for signatures across different chains, allowing users to control multiple accounts on various blockchains. Learn how the system uses key derivation paths and the master public key of the MPC operator network to ensure secure and flexible signing across multiple platforms. #NEARprotocol #chainsignatures #BlockchainSecurity #KeyDerivationFunctions #SmartContracts #NearAccounts #CryptoTechnology #SecureTransactions #MPCOperatorNetwork #BlockchainExplained #FutureOfBlockchain #BlockchainEducation","channel_name":"NEAR Protocol","published_at":"2024-08-30T00:00:00.000Z","thumbnail_url":"https://img.youtube.com/vi/ktAPDiGGR0Q/hqdefault.jpg","transcript_text":"there's the smart contract that's basically listening to requests for signatures so that takes uh three arguments around three a payload which is basically like what should be signed so oftentimes this will be a transaction or transaction hash um it takes in a key derivation path um and basically the the idea of like how the MPC Network silos who can sign for what is twofold so each near account basically goes through this key derivation function that key derivation function takes in the near account as an argument it takes in um a derivation path which means that like a user could control any number of accounts on any CH they can like augment the public key that's being used to sign so that they can you know have 50 Bitcoin addresses or like a thousand ethereum addresses or a million I mean any number and then and then finally it takes in like the the kind of Master public key of the MPC operative Network like which will change over time","transcript_synced_at":"2026-11-03T05:35:54.945Z","segments":[{"start_seconds":0,"text":"there's the smart contract that's basically listening to requests for signatures so that takes uh three arguments around three a payload which","url":"https://www.youtube.com/watch?v=ktAPDiGGR0Q&t=0s"},{"start_seconds":8,"text":"is basically like what should be signed so oftentimes this will be a transaction or transaction hash um it takes in a key","url":"https://www.youtube.com/watch?v=ktAPDiGGR0Q&t=8s"},{"start_seconds":16,"text":"derivation path um and basically the the idea of like how the MPC Network silos who can sign for what is twofold so each","url":"https://www.youtube.com/watch?v=ktAPDiGGR0Q&t=16s"},{"start_seconds":25,"text":"near account basically goes through this key derivation function that key derivation function takes in the near account as an argument it takes in um a","url":"https://www.youtube.com/watch?v=ktAPDiGGR0Q&t=25s"},{"start_seconds":33,"text":"derivation path which means that like a user could control any number of accounts on any CH they can like augment the public key that's being used to sign","url":"https://www.youtube.com/watch?v=ktAPDiGGR0Q&t=33s"},{"start_seconds":41,"text":"so that they can you know have 50 Bitcoin addresses or like a thousand ethereum addresses or a million I mean any number and then and then finally it takes in like the the kind of Master","url":"https://www.youtube.com/watch?v=ktAPDiGGR0Q&t=41s"},{"start_seconds":49,"text":"public key of the MPC operative Network like which will change over time","url":"https://www.youtube.com/watch?v=ktAPDiGGR0Q&t=49s"}],"youtube_url":"https://youtube.com/watch?v=ktAPDiGGR0Q","url":"https://near-pedia.xyz/videos/ktAPDiGGR0Q"}