John McCullough
type: MusicGroup
description: John McCullough is the name of: John McCullough (actor) (1837–1885), American actor John McCullough (rugby union) (born 1936), New Zealand rugby football player John Alexander McCullough (1860–194
popularity: 2
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9c66f108dde65d23ee3bbc0d1b988c91924291d210e8a4454b19d8245779edf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/901623de-ae88-494f-8499-e63c40b1e3fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/901623de-ae88-494f-8499-e63c40b1e3fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/901623de-ae88-494f-8499-e63c40b1e3fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf9c66f108dde65d23ee3bbc0d1b988c91924291d210e8a4454b19d8245779edf","name":"John McCullough","registered_at":"2026-06-17T15:52:06Z","symbol":"NIM1444104","token_address":"0xff22bbf4532e23b1f4b1f0749ddeacaa68651bba","type":"artist","uuid":"901623de-ae88-494f-8499-e63c40b1e3fc"}
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 0xf9c66f108dde65d23ee3bbc0d1b988c91924291d210e8a4454b19d8245779edf. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/901623de-ae88-494f-8499-e63c40b1e3fc.json and https://artists.proofprofile.net/proofs/artist/901623de-ae88-494f-8499-e63c40b1e3fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xf9c66f108dde65d23ee3bbc0d1b988c91924291d210e8a4454b19d8245779edf","name":"John McCullough","registered_at":"2026-06-17T15:52:06Z","symbol":"NIM1444104","token_address":"0xff22bbf4532e23b1f4b1f0749ddeacaa68651bba","type":"artist","uuid":"901623de-ae88-494f-8499-e63c40b1e3fc"}
album: Listen EP
  type: MusicAlbum
  date published: 2007-01-01
album: Here You Are EP
  type: MusicAlbum
  date published: 2009-04-21
album: Hark (Salvation Is Born)
  type: MusicAlbum
  date published: 2011-11-28
album: The Way
  type: MusicAlbum
  date published: 2013-04-27
album: Kings & Queens
  type: MusicAlbum
  date published: 2023-10-06