Apollo Saxophone Quartet
type: MusicGroup
genre: minimalism
popularity: 4
followers: 570
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3356736c7ffa80a6ed152298e77d69956d567e110ea947e056d4f11966e4ebb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4305b208-8d7c-488c-9613-a11cb94ed50c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4305b208-8d7c-488c-9613-a11cb94ed50c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4305b208-8d7c-488c-9613-a11cb94ed50c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3356736c7ffa80a6ed152298e77d69956d567e110ea947e056d4f11966e4ebb5","name":"Apollo Saxophone Quartet","registered_at":"2026-06-16T13:13:33Z","symbol":"NIM1062819","token_address":"0x7efb51f7380cf053c81f34900a5d6a7326de5d84","type":"artist","uuid":"4305b208-8d7c-488c-9613-a11cb94ed50c"}
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 0x3356736c7ffa80a6ed152298e77d69956d567e110ea947e056d4f11966e4ebb5. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4305b208-8d7c-488c-9613-a11cb94ed50c.json and https://artists.proofprofile.net/proofs/artist/4305b208-8d7c-488c-9613-a11cb94ed50c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:51:24Z
  text: {"copyright_id":"0x3356736c7ffa80a6ed152298e77d69956d567e110ea947e056d4f11966e4ebb5","name":"Apollo Saxophone Quartet","registered_at":"2026-06-16T13:13:33Z","symbol":"NIM1062819","token_address":"0x7efb51f7380cf053c81f34900a5d6a7326de5d84","type":"artist","uuid":"4305b208-8d7c-488c-9613-a11cb94ed50c"}
album: First & Foremost
  type: MusicAlbum
  date published: 1995-03-01
album: First & Foremost
  type: MusicAlbum
  date published: 1995-03-01
album: Words & Pictures
  type: MusicAlbum
  date published: 1998-01-01
album: WorksForUs
  type: MusicAlbum
  date published: 2001-01-01
album: Short Cuts
  type: MusicAlbum
  date published: 2004
album: Short Cuts
  type: MusicAlbum
  date published: 2004-01-01
album: Short Cuts
  type: MusicAlbum
  date published: 2004-01-01
album: Perspectives
  type: MusicAlbum
  date published: 2014-05-01