John Kettle
type: MusicGroup
genre: celtic
description: John Kettle (3 December 1830 – 30 October 1891) was an Australian cricketer. He played three first-class matches for New South Wales between 1859/60 and 1861/62. See also List of New South Wales rep
popularity: 2
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a9431201a82bba84eab1f0b80a6af411bb2544955d697530a2307bd0616e321
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7932fd00-a852-410d-9d78-4128bec8c211.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7932fd00-a852-410d-9d78-4128bec8c211.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7932fd00-a852-410d-9d78-4128bec8c211
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a9431201a82bba84eab1f0b80a6af411bb2544955d697530a2307bd0616e321","name":"John Kettle","registered_at":"2026-06-17T07:50:17Z","symbol":"NIM1329247","token_address":"0x3828eae7976f9cb041f72dbbaa6fd9856576e592","type":"artist","uuid":"7932fd00-a852-410d-9d78-4128bec8c211"}
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 0x9a9431201a82bba84eab1f0b80a6af411bb2544955d697530a2307bd0616e321. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7932fd00-a852-410d-9d78-4128bec8c211.json and https://artists.proofprofile.net/proofs/artist/7932fd00-a852-410d-9d78-4128bec8c211.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x9a9431201a82bba84eab1f0b80a6af411bb2544955d697530a2307bd0616e321","name":"John Kettle","registered_at":"2026-06-17T07:50:17Z","symbol":"NIM1329247","token_address":"0x3828eae7976f9cb041f72dbbaa6fd9856576e592","type":"artist","uuid":"7932fd00-a852-410d-9d78-4128bec8c211"}