John Tierney
type: MusicGroup
description: John Tierney may refer to: Politicians John Tierney (Australian politician) (born 1946), Liberal member of the Australian Senate John Tierney (Irish politician) (born 1951) John F. Tierney (born 1951
popularity: 4
followers: 18
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcfa21e27912d7f6fc4e3b66f6cde86c98fe82f6192437e2f58db41b5b2314794
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e61b5e7f-cb68-477c-be6c-d2df5004626a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e61b5e7f-cb68-477c-be6c-d2df5004626a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e61b5e7f-cb68-477c-be6c-d2df5004626a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcfa21e27912d7f6fc4e3b66f6cde86c98fe82f6192437e2f58db41b5b2314794","name":"John Tierney","registered_at":"2026-06-21T08:56:27Z","symbol":"NIM1881708","token_address":"0xbd76128f4835e14eb68ac02aa642af17aba1c1f2","type":"artist","uuid":"e61b5e7f-cb68-477c-be6c-d2df5004626a"}
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 0xcfa21e27912d7f6fc4e3b66f6cde86c98fe82f6192437e2f58db41b5b2314794. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e61b5e7f-cb68-477c-be6c-d2df5004626a.json and https://artists.proofprofile.net/proofs/artist/e61b5e7f-cb68-477c-be6c-d2df5004626a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xcfa21e27912d7f6fc4e3b66f6cde86c98fe82f6192437e2f58db41b5b2314794","name":"John Tierney","registered_at":"2026-06-21T08:56:27Z","symbol":"NIM1881708","token_address":"0xbd76128f4835e14eb68ac02aa642af17aba1c1f2","type":"artist","uuid":"e61b5e7f-cb68-477c-be6c-d2df5004626a"}