The Unknown Artist
type: MusicGroup
popularity: 8
followers: 450
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x58e066aebbe3511efc371b360c5dca85768f1374086a2599db0c0e29b8a3f5c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c6f9ec5-2ed4-41a1-99ce-fb010d90a140.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c6f9ec5-2ed4-41a1-99ce-fb010d90a140.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c6f9ec5-2ed4-41a1-99ce-fb010d90a140
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x58e066aebbe3511efc371b360c5dca85768f1374086a2599db0c0e29b8a3f5c7","name":"The Unknown Artist","registered_at":"2026-06-17T08:57:54Z","symbol":"NIM1345369","token_address":"0xcf6b5adb4d036edfc5057bb943ab8a4459d69812","type":"artist","uuid":"7c6f9ec5-2ed4-41a1-99ce-fb010d90a140"}
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 0x58e066aebbe3511efc371b360c5dca85768f1374086a2599db0c0e29b8a3f5c7. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c6f9ec5-2ed4-41a1-99ce-fb010d90a140.json and https://artists.proofprofile.net/proofs/artist/7c6f9ec5-2ed4-41a1-99ce-fb010d90a140.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0x58e066aebbe3511efc371b360c5dca85768f1374086a2599db0c0e29b8a3f5c7","name":"The Unknown Artist","registered_at":"2026-06-17T08:57:54Z","symbol":"NIM1345369","token_address":"0xcf6b5adb4d036edfc5057bb943ab8a4459d69812","type":"artist","uuid":"7c6f9ec5-2ed4-41a1-99ce-fb010d90a140"}
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