عبده نجم
type: MusicGroup
genre: mahraganat
popularity: 18
followers: 1413
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5f28c50e5f9c937a82060b2bef961a14842b6a85e57324d775ddd6147ac853b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953736
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953736
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9994a753-b752-458b-8e15-248a20b5904c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9994a753-b752-458b-8e15-248a20b5904c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9994a753-b752-458b-8e15-248a20b5904c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:21:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa5f28c50e5f9c937a82060b2bef961a14842b6a85e57324d775ddd6147ac853b","name":"عبده نجم","registered_at":"2026-06-14T20:31:53Z","symbol":"NIM0568304","token_address":"0xa65bcf49188e0a862a8a0d869f4397b69b5d3884","type":"artist","uuid":"9994a753-b752-458b-8e15-248a20b5904c"}
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 0xa5f28c50e5f9c937a82060b2bef961a14842b6a85e57324d775ddd6147ac853b. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9994a753-b752-458b-8e15-248a20b5904c.json and https://artists.proofprofile.net/proofs/artist/9994a753-b752-458b-8e15-248a20b5904c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T03:21:19Z
  text: {"copyright_id":"0xa5f28c50e5f9c937a82060b2bef961a14842b6a85e57324d775ddd6147ac853b","name":"عبده نجم","registered_at":"2026-06-14T20:31:53Z","symbol":"NIM0568304","token_address":"0xa65bcf49188e0a862a8a0d869f4397b69b5d3884","type":"artist","uuid":"9994a753-b752-458b-8e15-248a20b5904c"}
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  type: MusicAlbum
  date published: 2023-09-02
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  type: MusicAlbum
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