Linda Nicholson
type: MusicGroup
popularity: 2
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d8de77ef9f038b2ffe4581fb3b044ab94c4d0dd1be1c6ba6907f8329fd664b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a51890d3-c8a5-42c0-8983-09a046e906e1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a51890d3-c8a5-42c0-8983-09a046e906e1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a51890d3-c8a5-42c0-8983-09a046e906e1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d8de77ef9f038b2ffe4581fb3b044ab94c4d0dd1be1c6ba6907f8329fd664b7","name":"Linda Nicholson","registered_at":"2026-06-20T07:12:16Z","symbol":"NIM1550858","token_address":"0xe47f5e6db20e0bc10a58cf4aa5409e01f1b7250f","type":"artist","uuid":"a51890d3-c8a5-42c0-8983-09a046e906e1"}
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 0x3d8de77ef9f038b2ffe4581fb3b044ab94c4d0dd1be1c6ba6907f8329fd664b7. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a51890d3-c8a5-42c0-8983-09a046e906e1.json and https://artists.proofprofile.net/proofs/artist/a51890d3-c8a5-42c0-8983-09a046e906e1.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x3d8de77ef9f038b2ffe4581fb3b044ab94c4d0dd1be1c6ba6907f8329fd664b7","name":"Linda Nicholson","registered_at":"2026-06-20T07:12:16Z","symbol":"NIM1550858","token_address":"0xe47f5e6db20e0bc10a58cf4aa5409e01f1b7250f","type":"artist","uuid":"a51890d3-c8a5-42c0-8983-09a046e906e1"}
album: Mozart, W.A.: Piano Concertos Nos. 13 and 23
  type: MusicAlbum
  date published: 2000-01-01
album: Discovering the piano: Linda Nicholson on a Cristofori piano
  type: MusicAlbum
  date published: 2016-10-01