John Griffin
type: MusicGroup
description: John Griffin may refer to: Lawyers John Griffin (judge) (1774/1779 – after 1823), American jurist and member of the Michigan Territorial Supreme Court, 1806–1823 John Bowes Griffin (1903–1992), Briti
popularity: 17
followers: 277
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07f7bd01e2fd1861c4ab641a565a70031bb6f020a9f0e1c48ebe3bbbfa4c7f3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953633
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/350e78ff-c9fb-4c5e-b763-d0d28e9eab46.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/350e78ff-c9fb-4c5e-b763-d0d28e9eab46.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/350e78ff-c9fb-4c5e-b763-d0d28e9eab46
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:47:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x07f7bd01e2fd1861c4ab641a565a70031bb6f020a9f0e1c48ebe3bbbfa4c7f3d","name":"John Griffin","registered_at":"2026-06-14T09:58:55Z","symbol":"NIM0417335","token_address":"0x7bbe1e8a97debc8564a20a0c05702b4f2bf83e32","type":"artist","uuid":"350e78ff-c9fb-4c5e-b763-d0d28e9eab46"}
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 0x07f7bd01e2fd1861c4ab641a565a70031bb6f020a9f0e1c48ebe3bbbfa4c7f3d. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/350e78ff-c9fb-4c5e-b763-d0d28e9eab46.json and https://artists.proofprofile.net/proofs/artist/350e78ff-c9fb-4c5e-b763-d0d28e9eab46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:47:11Z
  text: {"copyright_id":"0x07f7bd01e2fd1861c4ab641a565a70031bb6f020a9f0e1c48ebe3bbbfa4c7f3d","name":"John Griffin","registered_at":"2026-06-14T09:58:55Z","symbol":"NIM0417335","token_address":"0x7bbe1e8a97debc8564a20a0c05702b4f2bf83e32","type":"artist","uuid":"350e78ff-c9fb-4c5e-b763-d0d28e9eab46"}
album: Watch Me Fall
  type: MusicAlbum
  date published: 2025-01-31
album: Looking For A Love Song
  type: MusicAlbum
  date published: 2025-02-28
album: Carolina Kiss
  type: MusicAlbum
  date published: 2025-08-01