Keith Stewart
type: MusicGroup
description: Vice-Admiral Keith Stewart (1739 – 3 March 1795) was a Royal Navy officer and politician who sat in the House of Commons on two occasions. Having begun his naval career in around 1753, Stewart was pro
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd9294341a2b06716cc894dfe062b729af2cb0097c8705bf8ce771e8fbe1cb0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fc101e5-4a2a-459e-b7d0-5b3eca4a734a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fc101e5-4a2a-459e-b7d0-5b3eca4a734a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2fc101e5-4a2a-459e-b7d0-5b3eca4a734a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd9294341a2b06716cc894dfe062b729af2cb0097c8705bf8ce771e8fbe1cb0c","name":"Keith Stewart","registered_at":"2026-06-16T06:11:40Z","symbol":"NIM0962139","token_address":"0xcfffeedb6e5f98934e9507aab9500456f7d3bd19","type":"artist","uuid":"2fc101e5-4a2a-459e-b7d0-5b3eca4a734a"}
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 0xcd9294341a2b06716cc894dfe062b729af2cb0097c8705bf8ce771e8fbe1cb0c. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fc101e5-4a2a-459e-b7d0-5b3eca4a734a.json and https://artists.proofprofile.net/proofs/artist/2fc101e5-4a2a-459e-b7d0-5b3eca4a734a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T20:04:35Z
  text: {"copyright_id":"0xcd9294341a2b06716cc894dfe062b729af2cb0097c8705bf8ce771e8fbe1cb0c","name":"Keith Stewart","registered_at":"2026-06-16T06:11:40Z","symbol":"NIM0962139","token_address":"0xcfffeedb6e5f98934e9507aab9500456f7d3bd19","type":"artist","uuid":"2fc101e5-4a2a-459e-b7d0-5b3eca4a734a"}