Cupre london
type: MusicGroup
popularity: 16
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf50845fb1a3eb1c493aaef38f6a71d73f0955b79866fad7030634193c382abb2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9bf7cb85-a9b0-404d-9784-9a9c284f90a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9bf7cb85-a9b0-404d-9784-9a9c284f90a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9bf7cb85-a9b0-404d-9784-9a9c284f90a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf50845fb1a3eb1c493aaef38f6a71d73f0955b79866fad7030634193c382abb2","name":"Cupre london","registered_at":"2026-06-14T20:57:53Z","symbol":"NIM0574511","token_address":"0x6cfdab18283020d07741aed814fc6bff06d2a298","type":"artist","uuid":"9bf7cb85-a9b0-404d-9784-9a9c284f90a7"}
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 0xf50845fb1a3eb1c493aaef38f6a71d73f0955b79866fad7030634193c382abb2. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9bf7cb85-a9b0-404d-9784-9a9c284f90a7.json and https://artists.proofprofile.net/proofs/artist/9bf7cb85-a9b0-404d-9784-9a9c284f90a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xf50845fb1a3eb1c493aaef38f6a71d73f0955b79866fad7030634193c382abb2","name":"Cupre london","registered_at":"2026-06-14T20:57:53Z","symbol":"NIM0574511","token_address":"0x6cfdab18283020d07741aed814fc6bff06d2a298","type":"artist","uuid":"9bf7cb85-a9b0-404d-9784-9a9c284f90a7"}
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