Cheb Ourrad Houarri
type: MusicGroup
genre: gnawa
genre: raï
popularity: 2
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb94a4f8e79a96613136f753ac7d1e54e27357e356ded758a56fd23f8e6a8d6b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3cf84cb8-848d-4367-9e88-26929aa1f653.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3cf84cb8-848d-4367-9e88-26929aa1f653.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3cf84cb8-848d-4367-9e88-26929aa1f653
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb94a4f8e79a96613136f753ac7d1e54e27357e356ded758a56fd23f8e6a8d6b","name":"Cheb Ourrad Houarri","registered_at":"2026-06-16T10:46:16Z","symbol":"NIM1027697","token_address":"0x3b3c3c95db2c72fad1647f440923d3b04644e262","type":"artist","uuid":"3cf84cb8-848d-4367-9e88-26929aa1f653"}
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 0xdb94a4f8e79a96613136f753ac7d1e54e27357e356ded758a56fd23f8e6a8d6b. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cf84cb8-848d-4367-9e88-26929aa1f653.json and https://artists.proofprofile.net/proofs/artist/3cf84cb8-848d-4367-9e88-26929aa1f653.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0xdb94a4f8e79a96613136f753ac7d1e54e27357e356ded758a56fd23f8e6a8d6b","name":"Cheb Ourrad Houarri","registered_at":"2026-06-16T10:46:16Z","symbol":"NIM1027697","token_address":"0x3b3c3c95db2c72fad1647f440923d3b04644e262","type":"artist","uuid":"3cf84cb8-848d-4367-9e88-26929aa1f653"}