James Johnstone
type: MusicGroup
description: James Johnstone may refer to: James Johnstone, 1st Earl of Hartfell (1602–1653), Scottish peer and royalist James Johnstone, 2nd Marquess of Annandale (c. 1687–1730), Scottish peer Sir James Johnston
popularity: 10
followers: 213
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa65cba830cf2eb35c50081f9dd0e46e1e2e807a7f2043382299548e05fa5e58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6432755f-7933-43ef-995f-206f949309fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6432755f-7933-43ef-995f-206f949309fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6432755f-7933-43ef-995f-206f949309fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa65cba830cf2eb35c50081f9dd0e46e1e2e807a7f2043382299548e05fa5e58","name":"James Johnstone","registered_at":"2026-06-17T00:35:02Z","symbol":"NIM1225414","token_address":"0xa4435f8a30188cd918057db047ac5fd0efa3a104","type":"artist","uuid":"6432755f-7933-43ef-995f-206f949309fd"}
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 0xfa65cba830cf2eb35c50081f9dd0e46e1e2e807a7f2043382299548e05fa5e58. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6432755f-7933-43ef-995f-206f949309fd.json and https://artists.proofprofile.net/proofs/artist/6432755f-7933-43ef-995f-206f949309fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xfa65cba830cf2eb35c50081f9dd0e46e1e2e807a7f2043382299548e05fa5e58","name":"James Johnstone","registered_at":"2026-06-17T00:35:02Z","symbol":"NIM1225414","token_address":"0xa4435f8a30188cd918057db047ac5fd0efa3a104","type":"artist","uuid":"6432755f-7933-43ef-995f-206f949309fd"}
album: Couperin: Complete Works for Harpsichord, Vol. 7 – 15th, 16th & 17th Ordres
  type: MusicAlbum
  date published: 2018-10-19