Leon Cormack
type: MusicGroup
popularity: 4
followers: 333
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x162c2fc9d0400b31f1e33dfd6b712286353c59d63455ad3c98a72a02318d83af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953882
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953882
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a447818-0df8-4275-83fe-88a15e230178.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a447818-0df8-4275-83fe-88a15e230178.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0a447818-0df8-4275-83fe-88a15e230178
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T03:13:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x162c2fc9d0400b31f1e33dfd6b712286353c59d63455ad3c98a72a02318d83af","name":"Leon Cormack","registered_at":"2026-06-15T17:08:00Z","symbol":"NIM0775082","token_address":"0x83cfa7d81c8301d77c443bf1eb4b6b76011c9520","type":"artist","uuid":"0a447818-0df8-4275-83fe-88a15e230178"}
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 0x162c2fc9d0400b31f1e33dfd6b712286353c59d63455ad3c98a72a02318d83af. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a447818-0df8-4275-83fe-88a15e230178.json and https://artists.proofprofile.net/proofs/artist/0a447818-0df8-4275-83fe-88a15e230178.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T03:13:34Z
  text: {"copyright_id":"0x162c2fc9d0400b31f1e33dfd6b712286353c59d63455ad3c98a72a02318d83af","name":"Leon Cormack","registered_at":"2026-06-15T17:08:00Z","symbol":"NIM0775082","token_address":"0x83cfa7d81c8301d77c443bf1eb4b6b76011c9520","type":"artist","uuid":"0a447818-0df8-4275-83fe-88a15e230178"}
album: Young Hearts
  type: MusicAlbum
  date published: 2022-07-29
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  type: MusicAlbum
  date published: 2022-08-05
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  type: MusicAlbum
  date published: 2023-02-17
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  type: MusicAlbum
  date published: 2023-03-10
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  type: MusicAlbum
  date published: 2023-04-07
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  type: MusicAlbum
  date published: 2023-05-12
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  type: MusicAlbum
  date published: 2023-06-16
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  type: MusicAlbum
  date published: 2023-08-18