Buddy DeFranco Quartet
type: MusicGroup
genre: vocal jazz
popularity: 6
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaff6c83ad2def3629cc531ab2f2ff78f9d669fbe33398aed2f857ba5dd95d3d4
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09cdd75b-0e4b-4854-b315-b2ab2c6a00ab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09cdd75b-0e4b-4854-b315-b2ab2c6a00ab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09cdd75b-0e4b-4854-b315-b2ab2c6a00ab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaff6c83ad2def3629cc531ab2f2ff78f9d669fbe33398aed2f857ba5dd95d3d4","name":"Buddy DeFranco Quartet","registered_at":"2026-06-15T16:55:07Z","symbol":"NIM0772005","token_address":"0x8e90a9d72592715d05fff5ee6441a077c91fd814","type":"artist","uuid":"09cdd75b-0e4b-4854-b315-b2ab2c6a00ab"}
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 0xaff6c83ad2def3629cc531ab2f2ff78f9d669fbe33398aed2f857ba5dd95d3d4. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09cdd75b-0e4b-4854-b315-b2ab2c6a00ab.json and https://artists.proofprofile.net/proofs/artist/09cdd75b-0e4b-4854-b315-b2ab2c6a00ab.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T02:57:35Z
  text: {"copyright_id":"0xaff6c83ad2def3629cc531ab2f2ff78f9d669fbe33398aed2f857ba5dd95d3d4","name":"Buddy DeFranco Quartet","registered_at":"2026-06-15T16:55:07Z","symbol":"NIM0772005","token_address":"0x8e90a9d72592715d05fff5ee6441a077c91fd814","type":"artist","uuid":"09cdd75b-0e4b-4854-b315-b2ab2c6a00ab"}
album: In a Mellow Mood
  type: MusicAlbum
  date published: 2001-09-20
album: All That Jazz, Vol. 99: Jammin' with Buddy – The Buddy DeFranco Quartet (Live)
  type: MusicAlbum
  date published: 2018-03-23
album: All That Jazz, Vol. 99: Jammin' with Buddy – The Buddy DeFranco Quartet (Live)
  type: MusicAlbum
  date published: 2018-03-23