芙美子
type: MusicGroup
genre: kayokyoku
popularity: 2
followers: 49
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2763851fe77d27fcf763c2599254f236661a047a7746698a528a012d0ae416ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e0cc7a7-37e9-48fe-b038-65d33f5f65fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e0cc7a7-37e9-48fe-b038-65d33f5f65fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e0cc7a7-37e9-48fe-b038-65d33f5f65fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2763851fe77d27fcf763c2599254f236661a047a7746698a528a012d0ae416ca","name":"芙美子","registered_at":"2026-06-17T15:15:05Z","symbol":"NIM1435257","token_address":"0xa20674135537d9c170adfbbdd69816ce07ac9695","type":"artist","uuid":"8e0cc7a7-37e9-48fe-b038-65d33f5f65fd"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2763851fe77d27fcf763c2599254f236661a047a7746698a528a012d0ae416ca. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e0cc7a7-37e9-48fe-b038-65d33f5f65fd.json and https://artists.proofprofile.net/proofs/artist/8e0cc7a7-37e9-48fe-b038-65d33f5f65fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x2763851fe77d27fcf763c2599254f236661a047a7746698a528a012d0ae416ca","name":"芙美子","registered_at":"2026-06-17T15:15:05Z","symbol":"NIM1435257","token_address":"0xa20674135537d9c170adfbbdd69816ce07ac9695","type":"artist","uuid":"8e0cc7a7-37e9-48fe-b038-65d33f5f65fd"}
album: 沖縄 Voice of Healing
  type: MusicAlbum
  date published: 2006-07-01
album: 沖縄 Voice of Healing
  type: MusicAlbum
  date published: 2006-07-01
album: 優しい夜の歌
  type: MusicAlbum
  date published: 2024-04-17