Oudad Lahcen
type: MusicGroup
popularity: 4
followers: 530
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf81a660d9895186b51ad62e27d743eca3e627f3f9b654e21b4cfefcbb8ef95ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3f2d621-e361-4c86-b4fe-75f0f166ec93.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3f2d621-e361-4c86-b4fe-75f0f166ec93.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b3f2d621-e361-4c86-b4fe-75f0f166ec93
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf81a660d9895186b51ad62e27d743eca3e627f3f9b654e21b4cfefcbb8ef95ac","name":"Oudad Lahcen","registered_at":"2026-06-20T14:06:10Z","symbol":"NIM1626483","token_address":"0x70178fd6669b26bbb7d9df04e3611b8dbcddd318","type":"artist","uuid":"b3f2d621-e361-4c86-b4fe-75f0f166ec93"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81a660d9895186b51ad62e27d743eca3e627f3f9b654e21b4cfefcbb8ef95ac. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3f2d621-e361-4c86-b4fe-75f0f166ec93.json and https://artists.proofprofile.net/proofs/artist/b3f2d621-e361-4c86-b4fe-75f0f166ec93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf81a660d9895186b51ad62e27d743eca3e627f3f9b654e21b4cfefcbb8ef95ac","name":"Oudad Lahcen","registered_at":"2026-06-20T14:06:10Z","symbol":"NIM1626483","token_address":"0x70178fd6669b26bbb7d9df04e3611b8dbcddd318","type":"artist","uuid":"b3f2d621-e361-4c86-b4fe-75f0f166ec93"}
album: Arraw Lkhir
  type: MusicAlbum
  date published: 2016-03-08
album: Arraw Lkhir
  type: MusicAlbum
  date published: 2016-03-08
album: Tiddokla (Arraw Lkhir)
  type: MusicAlbum
  date published: 2016-03-08
album: Ait Lkharej
  type: MusicAlbum
  date published: 2016-03-19
album: Boutayri
  type: MusicAlbum
  date published: 2016-08-31