Clef 23
type: MusicGroup
popularity: 8
followers: 136
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcaa732655926670ddd2558c413b0d95913ab984542143394aa43f77135b1cffc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66a010f3-7a38-4f2f-b0b0-3f2d59403f99.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66a010f3-7a38-4f2f-b0b0-3f2d59403f99.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/66a010f3-7a38-4f2f-b0b0-3f2d59403f99
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcaa732655926670ddd2558c413b0d95913ab984542143394aa43f77135b1cffc","name":"Clef 23","registered_at":"2026-06-17T01:26:21Z","symbol":"NIM1237659","token_address":"0x7fcc363d89a4782986ea6aa069dc3f9d7672b70f","type":"artist","uuid":"66a010f3-7a38-4f2f-b0b0-3f2d59403f99"}
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 0xcaa732655926670ddd2558c413b0d95913ab984542143394aa43f77135b1cffc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66a010f3-7a38-4f2f-b0b0-3f2d59403f99.json and https://artists.proofprofile.net/proofs/artist/66a010f3-7a38-4f2f-b0b0-3f2d59403f99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcaa732655926670ddd2558c413b0d95913ab984542143394aa43f77135b1cffc","name":"Clef 23","registered_at":"2026-06-17T01:26:21Z","symbol":"NIM1237659","token_address":"0x7fcc363d89a4782986ea6aa069dc3f9d7672b70f","type":"artist","uuid":"66a010f3-7a38-4f2f-b0b0-3f2d59403f99"}
album: NOISE DEMO
  type: MusicAlbum
  date published: 2021-12-01
album: Holiday Noise
  type: MusicAlbum
  date published: 2021-12-15
album: Grinding Brass
  type: MusicAlbum
  date published: 2022-06-15
album: Is This Trombone Playing?
  type: MusicAlbum
  date published: 2023-02-05
album: Head in The Ceiling Fan (arranged for jazz ensemble)
  type: MusicAlbum
  date published: 2024-02-28