Pedro de Castro
type: MusicGroup
genre: fado
popularity: 2
followers: 99
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ca2adb2355ec32e296209e0736a1a9ea191278f2ba5a1f7b445efc22551a28e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/042dd63f-2ee8-42d5-aa83-d811568421a5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/042dd63f-2ee8-42d5-aa83-d811568421a5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/042dd63f-2ee8-42d5-aa83-d811568421a5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ca2adb2355ec32e296209e0736a1a9ea191278f2ba5a1f7b445efc22551a28e","name":"Pedro de Castro","registered_at":"2026-06-15T15:05:07Z","symbol":"NIM0745747","token_address":"0x3c5d1ae44b07f23a1021ec4414414f97f57969cd","type":"artist","uuid":"042dd63f-2ee8-42d5-aa83-d811568421a5"}
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 0x0ca2adb2355ec32e296209e0736a1a9ea191278f2ba5a1f7b445efc22551a28e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/042dd63f-2ee8-42d5-aa83-d811568421a5.json and https://artists.proofprofile.net/proofs/artist/042dd63f-2ee8-42d5-aa83-d811568421a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x0ca2adb2355ec32e296209e0736a1a9ea191278f2ba5a1f7b445efc22551a28e","name":"Pedro de Castro","registered_at":"2026-06-15T15:05:07Z","symbol":"NIM0745747","token_address":"0x3c5d1ae44b07f23a1021ec4414414f97f57969cd","type":"artist","uuid":"042dd63f-2ee8-42d5-aa83-d811568421a5"}
album: Late Night R&B
  type: MusicAlbum
  date published: 2016-12-12