Samir Langus
type: MusicGroup
genre: gnawa
popularity: 4
followers: 568
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf6f4d2dd6d8fc48e808fa9398c59ac8fe017474611dae958d52e01c5890e9d9d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc444314-f264-4e2a-a55b-0e84400438e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dc444314-f264-4e2a-a55b-0e84400438e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dc444314-f264-4e2a-a55b-0e84400438e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf6f4d2dd6d8fc48e808fa9398c59ac8fe017474611dae958d52e01c5890e9d9d","name":"Samir Langus","registered_at":"2026-06-21T05:19:20Z","symbol":"NIM1831821","token_address":"0xfcaac1d3a75c80bb03f0380a7ff880389fc92e5e","type":"artist","uuid":"dc444314-f264-4e2a-a55b-0e84400438e7"}
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 0xf6f4d2dd6d8fc48e808fa9398c59ac8fe017474611dae958d52e01c5890e9d9d. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc444314-f264-4e2a-a55b-0e84400438e7.json and https://artists.proofprofile.net/proofs/artist/dc444314-f264-4e2a-a55b-0e84400438e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xf6f4d2dd6d8fc48e808fa9398c59ac8fe017474611dae958d52e01c5890e9d9d","name":"Samir Langus","registered_at":"2026-06-21T05:19:20Z","symbol":"NIM1831821","token_address":"0xfcaac1d3a75c80bb03f0380a7ff880389fc92e5e","type":"artist","uuid":"dc444314-f264-4e2a-a55b-0e84400438e7"}
album: Lala Aicha
  type: MusicAlbum
  date published: 2021-05-26
album: Toura Toura
  type: MusicAlbum
  date published: 2021-09-08
album: Moulay Abdellah
  type: MusicAlbum
  date published: 2021-11-28