Nuno Barroso
type: MusicGroup
genre: fado
popularity: 4
followers: 264
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcae02a9e48ca01282dab571a58703f913caaa553beca09522135489bfaed0248
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9bdf431-b870-4b12-919e-e5febf59977a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9bdf431-b870-4b12-919e-e5febf59977a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9bdf431-b870-4b12-919e-e5febf59977a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcae02a9e48ca01282dab571a58703f913caaa553beca09522135489bfaed0248","name":"Nuno Barroso","registered_at":"2026-06-20T09:04:30Z","symbol":"NIM1574619","token_address":"0x620666e11228c1e607630c6aabbb7fb071116659","type":"artist","uuid":"a9bdf431-b870-4b12-919e-e5febf59977a"}
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 0xcae02a9e48ca01282dab571a58703f913caaa553beca09522135489bfaed0248. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9bdf431-b870-4b12-919e-e5febf59977a.json and https://artists.proofprofile.net/proofs/artist/a9bdf431-b870-4b12-919e-e5febf59977a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xcae02a9e48ca01282dab571a58703f913caaa553beca09522135489bfaed0248","name":"Nuno Barroso","registered_at":"2026-06-20T09:04:30Z","symbol":"NIM1574619","token_address":"0x620666e11228c1e607630c6aabbb7fb071116659","type":"artist","uuid":"a9bdf431-b870-4b12-919e-e5febf59977a"}
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