フォー・オブ・ア・カインド
type: MusicGroup
genre: jazz fusion
popularity: 6
followers: 494
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc075195225a00390e40375d3cac9678abaeb79c84e840431c9e0380157ec928
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7adfe679-53f6-4c7b-9c6e-85246e2bef76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7adfe679-53f6-4c7b-9c6e-85246e2bef76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7adfe679-53f6-4c7b-9c6e-85246e2bef76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbc075195225a00390e40375d3cac9678abaeb79c84e840431c9e0380157ec928","name":"フォー・オブ・ア・カインド","registered_at":"2026-06-17T08:29:21Z","symbol":"NIM1338568","token_address":"0x3ae1f1dfcd9dda0c0ca373b9d95ebef21ee8d898","type":"artist","uuid":"7adfe679-53f6-4c7b-9c6e-85246e2bef76"}
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 0xbc075195225a00390e40375d3cac9678abaeb79c84e840431c9e0380157ec928. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7adfe679-53f6-4c7b-9c6e-85246e2bef76.json and https://artists.proofprofile.net/proofs/artist/7adfe679-53f6-4c7b-9c6e-85246e2bef76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0xbc075195225a00390e40375d3cac9678abaeb79c84e840431c9e0380157ec928","name":"フォー・オブ・ア・カインド","registered_at":"2026-06-17T08:29:21Z","symbol":"NIM1338568","token_address":"0x3ae1f1dfcd9dda0c0ca373b9d95ebef21ee8d898","type":"artist","uuid":"7adfe679-53f6-4c7b-9c6e-85246e2bef76"}
album: Four Of A Kind
  type: MusicAlbum
  date published: 2002-01-23
album: Four Of A Kind Live At Blue Note Tokyo And Osaka Blue Note
  type: MusicAlbum
  date published: 2002-08-21
album: フォー・オブ・ア・カインド2
  type: MusicAlbum
  date published: 2004-10-21