Yi Yan
type: MusicGroup
genre: cantopop
popularity: 2
followers: 178
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe292bf4105b1ae5927d136312c69524e73d6782897a8ae39094169284bf426d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f2c3c2b-54de-4575-8381-097ad262c797.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f2c3c2b-54de-4575-8381-097ad262c797.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3f2c3c2b-54de-4575-8381-097ad262c797
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe292bf4105b1ae5927d136312c69524e73d6782897a8ae39094169284bf426d5","name":"Yi Yan","registered_at":"2026-06-16T11:39:28Z","symbol":"NIM1040387","token_address":"0xbd66a72615edb83c821a89daa48ea378999667f8","type":"artist","uuid":"3f2c3c2b-54de-4575-8381-097ad262c797"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe292bf4105b1ae5927d136312c69524e73d6782897a8ae39094169284bf426d5. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f2c3c2b-54de-4575-8381-097ad262c797.json and https://artists.proofprofile.net/proofs/artist/3f2c3c2b-54de-4575-8381-097ad262c797.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0xe292bf4105b1ae5927d136312c69524e73d6782897a8ae39094169284bf426d5","name":"Yi Yan","registered_at":"2026-06-16T11:39:28Z","symbol":"NIM1040387","token_address":"0xbd66a72615edb83c821a89daa48ea378999667f8","type":"artist","uuid":"3f2c3c2b-54de-4575-8381-097ad262c797"}
album: 姐姐
  type: MusicAlbum
  date published: 2021-02-11
album: 戀之國度
  type: MusicAlbum
  date published: 2021-07-12
album: 人渣心理指南
  type: MusicAlbum
  date published: 2021-11-03
album: 姐姐 Part II
  type: MusicAlbum
  date published: 2022-02-15
album: 2000s Love
  type: MusicAlbum
  date published: 2023-02-14