Quatuor Zaïde
type: MusicGroup
genre: chamber music
popularity: 25
followers: 800
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24b3f3acf4093a90afa9c89096aedf89d37bf8e1c5eda5244cd22efe74d5d2a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3fdb9b4a-7adb-44a0-a395-ea0bea35a988.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3fdb9b4a-7adb-44a0-a395-ea0bea35a988.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3fdb9b4a-7adb-44a0-a395-ea0bea35a988
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x24b3f3acf4093a90afa9c89096aedf89d37bf8e1c5eda5244cd22efe74d5d2a9","name":"Quatuor Zaïde","registered_at":"2026-06-11T17:33:06Z","symbol":"NIM0083492","token_address":"0x5ba06af847f3c935440b99ef03b42d5baf9931cc","type":"artist","uuid":"3fdb9b4a-7adb-44a0-a395-ea0bea35a988"}
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 0x24b3f3acf4093a90afa9c89096aedf89d37bf8e1c5eda5244cd22efe74d5d2a9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fdb9b4a-7adb-44a0-a395-ea0bea35a988.json and https://artists.proofprofile.net/proofs/artist/3fdb9b4a-7adb-44a0-a395-ea0bea35a988.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x24b3f3acf4093a90afa9c89096aedf89d37bf8e1c5eda5244cd22efe74d5d2a9","name":"Quatuor Zaïde","registered_at":"2026-06-11T17:33:06Z","symbol":"NIM0083492","token_address":"0x5ba06af847f3c935440b99ef03b42d5baf9931cc","type":"artist","uuid":"3fdb9b4a-7adb-44a0-a395-ea0bea35a988"}
album: Janacek, Martinu
  type: MusicAlbum
  date published: 2014-04-01
album: Janacek, Martinu
  type: MusicAlbum
  date published: 2014-04-01
album: Haydn: String Quartets, Op.50
  type: MusicAlbum
  date published: 2015-11-17
album: Quatuor Zaïde | Franck, Chausson
  type: MusicAlbum
  date published: 2017-10-10
album: Fanny Mendelssohn: String Quartet in E-Flat Major
  type: MusicAlbum
  date published: 2023-04-21
album: Invisible
  type: MusicAlbum
  date published: 2023-04-28