El Hajji
type: MusicGroup
genre: nightcore
popularity: 8
followers: 623
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc81340eb336a38cc5dc4e8c3776edd62eacdcdcf93bd52fcde11589588910bad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b702ee9b-8162-4a2b-9ea1-4a198afdd411.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b702ee9b-8162-4a2b-9ea1-4a198afdd411.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b702ee9b-8162-4a2b-9ea1-4a198afdd411
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc81340eb336a38cc5dc4e8c3776edd62eacdcdcf93bd52fcde11589588910bad","name":"El Hajji","registered_at":"2026-06-20T15:16:39Z","symbol":"NIM1640292","token_address":"0x52f21f3a30d47654fcab292e13d5469a61a8d79a","type":"artist","uuid":"b702ee9b-8162-4a2b-9ea1-4a198afdd411"}
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 0xc81340eb336a38cc5dc4e8c3776edd62eacdcdcf93bd52fcde11589588910bad. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b702ee9b-8162-4a2b-9ea1-4a198afdd411.json and https://artists.proofprofile.net/proofs/artist/b702ee9b-8162-4a2b-9ea1-4a198afdd411.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xc81340eb336a38cc5dc4e8c3776edd62eacdcdcf93bd52fcde11589588910bad","name":"El Hajji","registered_at":"2026-06-20T15:16:39Z","symbol":"NIM1640292","token_address":"0x52f21f3a30d47654fcab292e13d5469a61a8d79a","type":"artist","uuid":"b702ee9b-8162-4a2b-9ea1-4a198afdd411"}
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