Nil Cardoso
type: MusicGroup
popularity: 10
followers: 3667
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28fc963b9210312882dfd1737e36bee41dfceb96115d8893acbcac139d726816
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adbf6b2f-ee9d-4e7c-bdd4-5511342ad576.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adbf6b2f-ee9d-4e7c-bdd4-5511342ad576.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adbf6b2f-ee9d-4e7c-bdd4-5511342ad576
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x28fc963b9210312882dfd1737e36bee41dfceb96115d8893acbcac139d726816","name":"Nil Cardoso","registered_at":"2026-06-20T10:35:35Z","symbol":"NIM1594150","token_address":"0xa5784e505744e67543b223d9c4f9a763b5597d29","type":"artist","uuid":"adbf6b2f-ee9d-4e7c-bdd4-5511342ad576"}
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 0x28fc963b9210312882dfd1737e36bee41dfceb96115d8893acbcac139d726816. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adbf6b2f-ee9d-4e7c-bdd4-5511342ad576.json and https://artists.proofprofile.net/proofs/artist/adbf6b2f-ee9d-4e7c-bdd4-5511342ad576.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x28fc963b9210312882dfd1737e36bee41dfceb96115d8893acbcac139d726816","name":"Nil Cardoso","registered_at":"2026-06-20T10:35:35Z","symbol":"NIM1594150","token_address":"0xa5784e505744e67543b223d9c4f9a763b5597d29","type":"artist","uuid":"adbf6b2f-ee9d-4e7c-bdd4-5511342ad576"}
album: Armored Hero Mechamato (English Theme Song)
  type: MusicAlbum
  date published: 2021-09-23