El Hamri
type: MusicGroup
genre: gnawa
genre: moroccan chaabi
genre: raï
popularity: 18
followers: 204
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03be352abb059b5c25d2b68c1ae06eda12e7813294e38e55fad35f9a17a7494c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c95630d-9916-4c48-aeca-a38fb9fb6109.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c95630d-9916-4c48-aeca-a38fb9fb6109.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c95630d-9916-4c48-aeca-a38fb9fb6109
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x03be352abb059b5c25d2b68c1ae06eda12e7813294e38e55fad35f9a17a7494c","name":"El Hamri","registered_at":"2026-06-14T12:32:18Z","symbol":"NIM0453927","token_address":"0x2832af24489fcf81ddd4966f0bf60d756bce36c4","type":"artist","uuid":"4c95630d-9916-4c48-aeca-a38fb9fb6109"}
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 0x03be352abb059b5c25d2b68c1ae06eda12e7813294e38e55fad35f9a17a7494c. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c95630d-9916-4c48-aeca-a38fb9fb6109.json and https://artists.proofprofile.net/proofs/artist/4c95630d-9916-4c48-aeca-a38fb9fb6109.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x03be352abb059b5c25d2b68c1ae06eda12e7813294e38e55fad35f9a17a7494c","name":"El Hamri","registered_at":"2026-06-14T12:32:18Z","symbol":"NIM0453927","token_address":"0x2832af24489fcf81ddd4966f0bf60d756bce36c4","type":"artist","uuid":"4c95630d-9916-4c48-aeca-a38fb9fb6109"}