Echeb Sayed Karoui
type: MusicGroup
genre: raï
popularity: 7
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf68d408370e2bc26538721e6d6f3a21ae74be80ce321db0bcc337aea8e0a319c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/157925c2-0d43-4350-9752-03f5f7890ea9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/157925c2-0d43-4350-9752-03f5f7890ea9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/157925c2-0d43-4350-9752-03f5f7890ea9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf68d408370e2bc26538721e6d6f3a21ae74be80ce321db0bcc337aea8e0a319c","name":"Echeb Sayed Karoui","registered_at":"2026-06-15T21:02:47Z","symbol":"NIM0831082","token_address":"0x59f3edfd27ecd1c045e4e0cac13b2905406982c1","type":"artist","uuid":"157925c2-0d43-4350-9752-03f5f7890ea9"}
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 0xf68d408370e2bc26538721e6d6f3a21ae74be80ce321db0bcc337aea8e0a319c. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/157925c2-0d43-4350-9752-03f5f7890ea9.json and https://artists.proofprofile.net/proofs/artist/157925c2-0d43-4350-9752-03f5f7890ea9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
  text: {"copyright_id":"0xf68d408370e2bc26538721e6d6f3a21ae74be80ce321db0bcc337aea8e0a319c","name":"Echeb Sayed Karoui","registered_at":"2026-06-15T21:02:47Z","symbol":"NIM0831082","token_address":"0x59f3edfd27ecd1c045e4e0cac13b2905406982c1","type":"artist","uuid":"157925c2-0d43-4350-9752-03f5f7890ea9"}
album: Douga Douga
  type: MusicAlbum
  date published: 1998-01-03
album: بزناس
  type: MusicAlbum
  date published: 2020-12-12