Harri Larkin
type: MusicGroup
popularity: 4
followers: 873
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x379e8b7fa5a0dc20fbb83f6473f88db728598a6691809b5995a639f52f28955e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e41c3f8c-5118-4d88-9ca1-20efe8cd6782.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e41c3f8c-5118-4d88-9ca1-20efe8cd6782.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e41c3f8c-5118-4d88-9ca1-20efe8cd6782
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x379e8b7fa5a0dc20fbb83f6473f88db728598a6691809b5995a639f52f28955e","name":"Harri Larkin","registered_at":"2026-06-21T07:57:07Z","symbol":"NIM1868345","token_address":"0x372a40c04285db31c4968370ff3b38eaa3b57118","type":"artist","uuid":"e41c3f8c-5118-4d88-9ca1-20efe8cd6782"}
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 0x379e8b7fa5a0dc20fbb83f6473f88db728598a6691809b5995a639f52f28955e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e41c3f8c-5118-4d88-9ca1-20efe8cd6782.json and https://artists.proofprofile.net/proofs/artist/e41c3f8c-5118-4d88-9ca1-20efe8cd6782.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x379e8b7fa5a0dc20fbb83f6473f88db728598a6691809b5995a639f52f28955e","name":"Harri Larkin","registered_at":"2026-06-21T07:57:07Z","symbol":"NIM1868345","token_address":"0x372a40c04285db31c4968370ff3b38eaa3b57118","type":"artist","uuid":"e41c3f8c-5118-4d88-9ca1-20efe8cd6782"}
album: Half-Grown
  type: MusicAlbum
  date published: 2018-03-04
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  date published: 2018-08-18
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  type: MusicAlbum
  date published: 2021-02-19
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  date published: 2022-01-20
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  date published: 2023-05-26
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  type: MusicAlbum
  date published: 2023-05-26
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  type: MusicAlbum
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  date published: 2024-02-14
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  type: MusicAlbum
  date published: 2024-08-30
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-03-28
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  type: MusicAlbum
  date published: 2025-05-20