Catarina Dos Santos
type: MusicGroup
genre: fado
popularity: 4
followers: 324
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf10c039c159cd09d919a30beb6b4475d1cf3cf25f040550c148c160be869f133
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953939
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953939
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20c17272-e221-4b8c-81cd-36525a4b9c16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20c17272-e221-4b8c-81cd-36525a4b9c16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/20c17272-e221-4b8c-81cd-36525a4b9c16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:40:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf10c039c159cd09d919a30beb6b4475d1cf3cf25f040550c148c160be869f133","name":"Catarina Dos Santos","registered_at":"2026-06-16T00:54:36Z","symbol":"NIM0886402","token_address":"0x10b7eaa380ad9f88fb77c1d60780fcafd5d1634f","type":"artist","uuid":"20c17272-e221-4b8c-81cd-36525a4b9c16"}
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 0xf10c039c159cd09d919a30beb6b4475d1cf3cf25f040550c148c160be869f133. Chain 2 (Bitcoin): anchored in block 953939 (2026-06-16T11:40:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20c17272-e221-4b8c-81cd-36525a4b9c16.json and https://artists.proofprofile.net/proofs/artist/20c17272-e221-4b8c-81cd-36525a4b9c16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:40:13Z
  text: {"copyright_id":"0xf10c039c159cd09d919a30beb6b4475d1cf3cf25f040550c148c160be869f133","name":"Catarina Dos Santos","registered_at":"2026-06-16T00:54:36Z","symbol":"NIM0886402","token_address":"0x10b7eaa380ad9f88fb77c1d60780fcafd5d1634f","type":"artist","uuid":"20c17272-e221-4b8c-81cd-36525a4b9c16"}
album: No Balanço do Mar
  type: MusicAlbum
  date published: 2009-07-21
album: Rádio Kriola
  type: MusicAlbum
  date published: 2016-12-15
album: Rádio Kriola: Reflections on Portuguese Identity
  type: MusicAlbum
  date published: 2018-07-27
album: Rádio Kriola: Reflections on Portuguese Identity
  type: MusicAlbum
  date published: 2018-07-27