John Mackay
type: MusicGroup
popularity: 4
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0bf88cb6e721a8d2a5ae33a9d6db6f2b277ef1af3765dc53d779807210da80c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1828708e-cdf6-4752-aa19-af305a2b172f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1828708e-cdf6-4752-aa19-af305a2b172f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1828708e-cdf6-4752-aa19-af305a2b172f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0bf88cb6e721a8d2a5ae33a9d6db6f2b277ef1af3765dc53d779807210da80c7","name":"John Mackay","registered_at":"2026-06-15T21:56:22Z","symbol":"NIM0843858","token_address":"0x32f4955ab1be6f6da79a61dabf9174cb6e512a79","type":"artist","uuid":"1828708e-cdf6-4752-aa19-af305a2b172f"}
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 0x0bf88cb6e721a8d2a5ae33a9d6db6f2b277ef1af3765dc53d779807210da80c7. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1828708e-cdf6-4752-aa19-af305a2b172f.json and https://artists.proofprofile.net/proofs/artist/1828708e-cdf6-4752-aa19-af305a2b172f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x0bf88cb6e721a8d2a5ae33a9d6db6f2b277ef1af3765dc53d779807210da80c7","name":"John Mackay","registered_at":"2026-06-15T21:56:22Z","symbol":"NIM0843858","token_address":"0x32f4955ab1be6f6da79a61dabf9174cb6e512a79","type":"artist","uuid":"1828708e-cdf6-4752-aa19-af305a2b172f"}
album: Peaced Heart And Often Grin
  type: MusicAlbum
  date published: 1999-01-01
album: OrganOptics
  type: MusicAlbum
  date published: 2006-07-18
album: Patterns, Circles And Shapes
  type: MusicAlbum
  date published: 2007-11-15
album: A Day in Dante's Abyss
  type: MusicAlbum
  date published: 2015-10-28
album: Caught in a Celtic Dream
  type: MusicAlbum
  date published: 2016-06-23
album: 12 Hymns to Peace
  type: MusicAlbum
  date published: 2019-07-23
album: Hymns to Peace
  type: MusicAlbum
  date published: 2019-11-13
album: Many Rooms
  type: MusicAlbum
  date published: 2021-01-04