Cecilia String Quartet
type: MusicGroup
genre: chamber music
popularity: 7
followers: 251
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd24c1d67705a2bcee94b41c041b79dfab0c44dd9005d5f7b546e6a905aae8f25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae61f323-7f36-48c0-bd8e-3fc66573c330.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae61f323-7f36-48c0-bd8e-3fc66573c330.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ae61f323-7f36-48c0-bd8e-3fc66573c330
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd24c1d67705a2bcee94b41c041b79dfab0c44dd9005d5f7b546e6a905aae8f25","name":"Cecilia String Quartet","registered_at":"2026-06-20T10:54:07Z","symbol":"NIM1596272","token_address":"0x9396b36b8e5e9e6c9f1307a43cadf092fda32ab4","type":"artist","uuid":"ae61f323-7f36-48c0-bd8e-3fc66573c330"}
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 0xd24c1d67705a2bcee94b41c041b79dfab0c44dd9005d5f7b546e6a905aae8f25. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae61f323-7f36-48c0-bd8e-3fc66573c330.json and https://artists.proofprofile.net/proofs/artist/ae61f323-7f36-48c0-bd8e-3fc66573c330.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0xd24c1d67705a2bcee94b41c041b79dfab0c44dd9005d5f7b546e6a905aae8f25","name":"Cecilia String Quartet","registered_at":"2026-06-20T10:54:07Z","symbol":"NIM1596272","token_address":"0x9396b36b8e5e9e6c9f1307a43cadf092fda32ab4","type":"artist","uuid":"ae61f323-7f36-48c0-bd8e-3fc66573c330"}
album: Amoroso: Janáček: Quartet No. 1 - Berg: Lyric Suite - Webern: Langsamer Satz
  type: MusicAlbum
  date published: 2013-03-19