Sophie Barretto
type: MusicGroup
popularity: 14
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53e8a60fd78929427479cca9a071702f5a13662fbde2a992b3ab626b9a62626b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953605
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953605
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1283bd5d-a1f4-4f54-b723-28324cd4e7f2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1283bd5d-a1f4-4f54-b723-28324cd4e7f2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1283bd5d-a1f4-4f54-b723-28324cd4e7f2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:39:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x53e8a60fd78929427479cca9a071702f5a13662fbde2a992b3ab626b9a62626b","name":"Sophie Barretto","registered_at":"2026-06-14T06:20:30Z","symbol":"NIM0365276","token_address":"0x522a30001002dc41d6875f3b422b460cb608bbdf","type":"artist","uuid":"1283bd5d-a1f4-4f54-b723-28324cd4e7f2"}
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 0x53e8a60fd78929427479cca9a071702f5a13662fbde2a992b3ab626b9a62626b. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1283bd5d-a1f4-4f54-b723-28324cd4e7f2.json and https://artists.proofprofile.net/proofs/artist/1283bd5d-a1f4-4f54-b723-28324cd4e7f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:39:50Z
  text: {"copyright_id":"0x53e8a60fd78929427479cca9a071702f5a13662fbde2a992b3ab626b9a62626b","name":"Sophie Barretto","registered_at":"2026-06-14T06:20:30Z","symbol":"NIM0365276","token_address":"0x522a30001002dc41d6875f3b422b460cb608bbdf","type":"artist","uuid":"1283bd5d-a1f4-4f54-b723-28324cd4e7f2"}