Graham Campbell
type: MusicGroup
description: Graham Fraser Campbell (22 July 1936 – 30 January 2022) was an Australian rules footballer who played 151 games for the Fitzroy Football Club in the Victorian Football League from 1956 until 1964. Pl
popularity: 2
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8fc787a6cf889bd700b285bbd3c36bdc336408fd13dadac681f179ee8e23a7a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da05aba9-4e1a-49d9-b2f1-3842358c413f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da05aba9-4e1a-49d9-b2f1-3842358c413f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/da05aba9-4e1a-49d9-b2f1-3842358c413f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8fc787a6cf889bd700b285bbd3c36bdc336408fd13dadac681f179ee8e23a7a5","name":"Graham Campbell","registered_at":"2026-06-21T04:18:46Z","symbol":"NIM1817560","token_address":"0x984a5b6bbf597da20b24b5f6118ae3afab2ef076","type":"artist","uuid":"da05aba9-4e1a-49d9-b2f1-3842358c413f"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc787a6cf889bd700b285bbd3c36bdc336408fd13dadac681f179ee8e23a7a5. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da05aba9-4e1a-49d9-b2f1-3842358c413f.json and https://artists.proofprofile.net/proofs/artist/da05aba9-4e1a-49d9-b2f1-3842358c413f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x8fc787a6cf889bd700b285bbd3c36bdc336408fd13dadac681f179ee8e23a7a5","name":"Graham Campbell","registered_at":"2026-06-21T04:18:46Z","symbol":"NIM1817560","token_address":"0x984a5b6bbf597da20b24b5f6118ae3afab2ef076","type":"artist","uuid":"da05aba9-4e1a-49d9-b2f1-3842358c413f"}
album: As You Near Me
  type: MusicAlbum
  date published: 2013-11-05
album: As You Near Me
  type: MusicAlbum
  date published: 2013-11-05
album: As You Near Me
  type: MusicAlbum
  date published: 2013-11-05
album: Palms Upward
  type: MusicAlbum
  date published: 2023-03-10
album: Podwójne (Original Soundtrack)
  type: MusicAlbum
  date published: 2024-12-13