The Quantum Blues Quartet
type: MusicGroup
popularity: 2
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a90f448687cf12bb66995f5e8d08b3585afd7c98eb5d40a9a4254008f03045d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd216a3f-ade2-4daa-845d-f2907f0d0138.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd216a3f-ade2-4daa-845d-f2907f0d0138.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cd216a3f-ade2-4daa-845d-f2907f0d0138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a90f448687cf12bb66995f5e8d08b3585afd7c98eb5d40a9a4254008f03045d","name":"The Quantum Blues Quartet","registered_at":"2026-06-20T23:58:22Z","symbol":"NIM1755196","token_address":"0x24b3b46aa1f8b6f0867a7d0525fe147ac99aa1ff","type":"artist","uuid":"cd216a3f-ade2-4daa-845d-f2907f0d0138"}
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 0x5a90f448687cf12bb66995f5e8d08b3585afd7c98eb5d40a9a4254008f03045d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd216a3f-ade2-4daa-845d-f2907f0d0138.json and https://artists.proofprofile.net/proofs/artist/cd216a3f-ade2-4daa-845d-f2907f0d0138.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x5a90f448687cf12bb66995f5e8d08b3585afd7c98eb5d40a9a4254008f03045d","name":"The Quantum Blues Quartet","registered_at":"2026-06-20T23:58:22Z","symbol":"NIM1755196","token_address":"0x24b3b46aa1f8b6f0867a7d0525fe147ac99aa1ff","type":"artist","uuid":"cd216a3f-ade2-4daa-845d-f2907f0d0138"}
album: Quantum Blues
  type: MusicAlbum
  date published: 2025-04-25