Leo McCaffrey
type: MusicGroup
genre: celtic
popularity: 5
followers: 250
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0d333797d3b371a9a258c73bb635154e03b1fbc8ba95a0689f11b499df0177c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95ad9435-49c5-40e8-906f-e41a847940d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95ad9435-49c5-40e8-906f-e41a847940d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/95ad9435-49c5-40e8-906f-e41a847940d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb0d333797d3b371a9a258c73bb635154e03b1fbc8ba95a0689f11b499df0177c","name":"Leo McCaffrey","registered_at":"2026-06-17T17:56:14Z","symbol":"NIM1473747","token_address":"0x2465a31bd6f0971ae02c8587e01f61ff311ac2d2","type":"artist","uuid":"95ad9435-49c5-40e8-906f-e41a847940d4"}
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 0xb0d333797d3b371a9a258c73bb635154e03b1fbc8ba95a0689f11b499df0177c. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95ad9435-49c5-40e8-906f-e41a847940d4.json and https://artists.proofprofile.net/proofs/artist/95ad9435-49c5-40e8-906f-e41a847940d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xb0d333797d3b371a9a258c73bb635154e03b1fbc8ba95a0689f11b499df0177c","name":"Leo McCaffrey","registered_at":"2026-06-17T17:56:14Z","symbol":"NIM1473747","token_address":"0x2465a31bd6f0971ae02c8587e01f61ff311ac2d2","type":"artist","uuid":"95ad9435-49c5-40e8-906f-e41a847940d4"}
album: McCaffrey's Country
  type: MusicAlbum
  date published: 1971-12-31
album: Souvenir Of Ireland
  type: MusicAlbum
  date published: 2009-03-05
album: Irish Favourites
  type: MusicAlbum
  date published: 2011-01-01
album: An Evening in the Glens
  type: MusicAlbum
  date published: 2014-05-16
album: A Weekend in Ireland
  type: MusicAlbum
  date published: 2015-01-01