Selim du 9.4.
type: MusicGroup
genre: raï
popularity: 8
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54c83df244ea8d9be3101402ef651160f26285dbfda7a6abcfb085999c98e29b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c628dfe1-ad24-48e5-bb5e-79bc878cafd7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c628dfe1-ad24-48e5-bb5e-79bc878cafd7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c628dfe1-ad24-48e5-bb5e-79bc878cafd7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54c83df244ea8d9be3101402ef651160f26285dbfda7a6abcfb085999c98e29b","name":"Selim du 9.4.","registered_at":"2026-06-20T21:18:10Z","symbol":"NIM1715918","token_address":"0x3afe2ddab68988abfee0463366530f6d3b9bb1a4","type":"artist","uuid":"c628dfe1-ad24-48e5-bb5e-79bc878cafd7"}
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 0x54c83df244ea8d9be3101402ef651160f26285dbfda7a6abcfb085999c98e29b. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c628dfe1-ad24-48e5-bb5e-79bc878cafd7.json and https://artists.proofprofile.net/proofs/artist/c628dfe1-ad24-48e5-bb5e-79bc878cafd7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x54c83df244ea8d9be3101402ef651160f26285dbfda7a6abcfb085999c98e29b","name":"Selim du 9.4.","registered_at":"2026-06-20T21:18:10Z","symbol":"NIM1715918","token_address":"0x3afe2ddab68988abfee0463366530f6d3b9bb1a4","type":"artist","uuid":"c628dfe1-ad24-48e5-bb5e-79bc878cafd7"}