Liverpool String Quartet
type: MusicGroup
popularity: 4
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad237e5c44db05440b9f7a0e2c9d15d6ac86d2ceb99efd70e6f097e2521012cd
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/dde71c87-555b-41c8-aeac-95c2a2e20117.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dde71c87-555b-41c8-aeac-95c2a2e20117.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dde71c87-555b-41c8-aeac-95c2a2e20117
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad237e5c44db05440b9f7a0e2c9d15d6ac86d2ceb99efd70e6f097e2521012cd","name":"Liverpool String Quartet","registered_at":"2026-06-21T05:36:16Z","symbol":"NIM1836031","token_address":"0xeebb43c3ba852461ad9a24ac85096e1491ec6a81","type":"artist","uuid":"dde71c87-555b-41c8-aeac-95c2a2e20117"}
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 0xad237e5c44db05440b9f7a0e2c9d15d6ac86d2ceb99efd70e6f097e2521012cd. 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/dde71c87-555b-41c8-aeac-95c2a2e20117.json and https://artists.proofprofile.net/proofs/artist/dde71c87-555b-41c8-aeac-95c2a2e20117.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xad237e5c44db05440b9f7a0e2c9d15d6ac86d2ceb99efd70e6f097e2521012cd","name":"Liverpool String Quartet","registered_at":"2026-06-21T05:36:16Z","symbol":"NIM1836031","token_address":"0xeebb43c3ba852461ad9a24ac85096e1491ec6a81","type":"artist","uuid":"dde71c87-555b-41c8-aeac-95c2a2e20117"}
album: Blake: The Snowman - Prokofiev: Peter & the Woolf
  type: MusicAlbum
  date published: 2018-11-30