E.W. Harris
type: MusicGroup
popularity: 5
followers: 524
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99814027a363223ffe5f8010da8183761ed1695087176ac7f117a277bb30d69a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d7111fcc-f52b-4f25-a2de-fc85ef61efbe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d7111fcc-f52b-4f25-a2de-fc85ef61efbe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d7111fcc-f52b-4f25-a2de-fc85ef61efbe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99814027a363223ffe5f8010da8183761ed1695087176ac7f117a277bb30d69a","name":"E.W. Harris","registered_at":"2026-06-21T03:24:20Z","symbol":"NIM1801352","token_address":"0x5e39c7bbb4604c3f8595d91acd22331d39b69eca","type":"artist","uuid":"d7111fcc-f52b-4f25-a2de-fc85ef61efbe"}
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 0x99814027a363223ffe5f8010da8183761ed1695087176ac7f117a277bb30d69a. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7111fcc-f52b-4f25-a2de-fc85ef61efbe.json and https://artists.proofprofile.net/proofs/artist/d7111fcc-f52b-4f25-a2de-fc85ef61efbe.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x99814027a363223ffe5f8010da8183761ed1695087176ac7f117a277bb30d69a","name":"E.W. Harris","registered_at":"2026-06-21T03:24:20Z","symbol":"NIM1801352","token_address":"0x5e39c7bbb4604c3f8595d91acd22331d39b69eca","type":"artist","uuid":"d7111fcc-f52b-4f25-a2de-fc85ef61efbe"}
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