Haj Mohamed Toud
type: MusicGroup
genre: gnawa
genre: traditional music
popularity: 4
followers: 611
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c5802bf77d471c327d21e3205e3f53916c5c0a42a899f998e8c6d53e65e744b
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/2898e029-4126-4579-a642-ad129fe5af6c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2898e029-4126-4579-a642-ad129fe5af6c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2898e029-4126-4579-a642-ad129fe5af6c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7c5802bf77d471c327d21e3205e3f53916c5c0a42a899f998e8c6d53e65e744b","name":"Haj Mohamed Toud","registered_at":"2026-06-16T03:44:46Z","symbol":"NIM0927050","token_address":"0x7546c13d59d61ff0142487fa1d8f1631163166a2","type":"artist","uuid":"2898e029-4126-4579-a642-ad129fe5af6c"}
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 0x7c5802bf77d471c327d21e3205e3f53916c5c0a42a899f998e8c6d53e65e744b. 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/2898e029-4126-4579-a642-ad129fe5af6c.json and https://artists.proofprofile.net/proofs/artist/2898e029-4126-4579-a642-ad129fe5af6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0x7c5802bf77d471c327d21e3205e3f53916c5c0a42a899f998e8c6d53e65e744b","name":"Haj Mohamed Toud","registered_at":"2026-06-16T03:44:46Z","symbol":"NIM0927050","token_address":"0x7546c13d59d61ff0142487fa1d8f1631163166a2","type":"artist","uuid":"2898e029-4126-4579-a642-ad129fe5af6c"}
album: Anthologie Al-Âla, Maroc : Nûba al-'Ushshâq
  type: MusicAlbum
  date published: 2011-10-17