Hicham El Werdi
type: MusicGroup
genre: raï
popularity: 7
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x937d38c8556abb04bf393bbc0a243d5a616b9e3914165219be626df918481a48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954050
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42f2fd8f-966b-44e2-a7dd-e7e19ef5c11a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42f2fd8f-966b-44e2-a7dd-e7e19ef5c11a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/42f2fd8f-966b-44e2-a7dd-e7e19ef5c11a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:14:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x937d38c8556abb04bf393bbc0a243d5a616b9e3914165219be626df918481a48","name":"Hicham El Werdi","registered_at":"2026-06-16T12:55:09Z","symbol":"NIM1058437","token_address":"0xd3566d5cc0a083445a5a19ca452f6e62642b58d4","type":"artist","uuid":"42f2fd8f-966b-44e2-a7dd-e7e19ef5c11a"}
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 0x937d38c8556abb04bf393bbc0a243d5a616b9e3914165219be626df918481a48. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42f2fd8f-966b-44e2-a7dd-e7e19ef5c11a.json and https://artists.proofprofile.net/proofs/artist/42f2fd8f-966b-44e2-a7dd-e7e19ef5c11a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x937d38c8556abb04bf393bbc0a243d5a616b9e3914165219be626df918481a48","name":"Hicham El Werdi","registered_at":"2026-06-16T12:55:09Z","symbol":"NIM1058437","token_address":"0xd3566d5cc0a083445a5a19ca452f6e62642b58d4","type":"artist","uuid":"42f2fd8f-966b-44e2-a7dd-e7e19ef5c11a"}
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