Wassim Halal
type: MusicGroup
genre: japanese classical
popularity: 4
followers: 347
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadcb8698a0cea36cb84bfb246e869ca407de24fcd51a115e3f6619cc56e145d2
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/ad23454d-258c-42ac-8f13-9d00ce15ce3a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad23454d-258c-42ac-8f13-9d00ce15ce3a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad23454d-258c-42ac-8f13-9d00ce15ce3a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xadcb8698a0cea36cb84bfb246e869ca407de24fcd51a115e3f6619cc56e145d2","name":"Wassim Halal","registered_at":"2026-06-20T10:37:12Z","symbol":"NIM1592849","token_address":"0x0df086ddab7ac286a7d70f280f0f2c26371bc4cf","type":"artist","uuid":"ad23454d-258c-42ac-8f13-9d00ce15ce3a"}
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 0xadcb8698a0cea36cb84bfb246e869ca407de24fcd51a115e3f6619cc56e145d2. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad23454d-258c-42ac-8f13-9d00ce15ce3a.json and https://artists.proofprofile.net/proofs/artist/ad23454d-258c-42ac-8f13-9d00ce15ce3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0xadcb8698a0cea36cb84bfb246e869ca407de24fcd51a115e3f6619cc56e145d2","name":"Wassim Halal","registered_at":"2026-06-20T10:37:12Z","symbol":"NIM1592849","token_address":"0x0df086ddab7ac286a7d70f280f0f2c26371bc4cf","type":"artist","uuid":"ad23454d-258c-42ac-8f13-9d00ce15ce3a"}
album: Revolutionary Birds
  type: MusicAlbum
  date published: 2017-11-03
album: Le cri du cyclope
  type: MusicAlbum
  date published: 2018-11-23