Cheikh Mamachi
type: MusicGroup
popularity: 2
followers: 338
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x504cd5d16fae37dbb3b39ed6bee99679ba301a65e0ccebe7a576e5eea090ed23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29414b21-9e9a-4a2d-9038-5e5265843d05.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/29414b21-9e9a-4a2d-9038-5e5265843d05.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/29414b21-9e9a-4a2d-9038-5e5265843d05
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x504cd5d16fae37dbb3b39ed6bee99679ba301a65e0ccebe7a576e5eea090ed23","name":"Cheikh Mamachi","registered_at":"2026-06-16T03:54:17Z","symbol":"NIM0929319","token_address":"0x01831513113c2c6df948740fb5e5e0d11f9b9c2f","type":"artist","uuid":"29414b21-9e9a-4a2d-9038-5e5265843d05"}
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 0x504cd5d16fae37dbb3b39ed6bee99679ba301a65e0ccebe7a576e5eea090ed23. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29414b21-9e9a-4a2d-9038-5e5265843d05.json and https://artists.proofprofile.net/proofs/artist/29414b21-9e9a-4a2d-9038-5e5265843d05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0x504cd5d16fae37dbb3b39ed6bee99679ba301a65e0ccebe7a576e5eea090ed23","name":"Cheikh Mamachi","registered_at":"2026-06-16T03:54:17Z","symbol":"NIM0929319","token_address":"0x01831513113c2c6df948740fb5e5e0d11f9b9c2f","type":"artist","uuid":"29414b21-9e9a-4a2d-9038-5e5265843d05"}
album: Wahd El Ghzal
  type: MusicAlbum
  date published: 1996
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  type: MusicAlbum
  date published: 2005-01-01
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  type: MusicAlbum
  date published: 2013-02-07
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2020-12-13