John Arkell
type: MusicGroup
description: John Arkell (1835–1923) was an English clergyman and a rower who won Silver Goblets at Henley Royal Regatta. Arkell was born in Boddington, GloucestershireBritish Census 1881 RG11 1503/10 p13 and ed
popularity: 2
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadc93d4f24237e7cdf380bd7154bd3fde416319ac711e36f765b3123fc57447a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9ed7fe4-3eaa-403d-a2a3-54cdae531c33.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9ed7fe4-3eaa-403d-a2a3-54cdae531c33.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e9ed7fe4-3eaa-403d-a2a3-54cdae531c33
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xadc93d4f24237e7cdf380bd7154bd3fde416319ac711e36f765b3123fc57447a","name":"John Arkell","registered_at":"2026-06-21T10:20:22Z","symbol":"NIM1896867","token_address":"0x2fafa5e21fcc6c5d054b777483f185a9b9d6c739","type":"artist","uuid":"e9ed7fe4-3eaa-403d-a2a3-54cdae531c33"}
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 0xadc93d4f24237e7cdf380bd7154bd3fde416319ac711e36f765b3123fc57447a. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9ed7fe4-3eaa-403d-a2a3-54cdae531c33.json and https://artists.proofprofile.net/proofs/artist/e9ed7fe4-3eaa-403d-a2a3-54cdae531c33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xadc93d4f24237e7cdf380bd7154bd3fde416319ac711e36f765b3123fc57447a","name":"John Arkell","registered_at":"2026-06-21T10:20:22Z","symbol":"NIM1896867","token_address":"0x2fafa5e21fcc6c5d054b777483f185a9b9d6c739","type":"artist","uuid":"e9ed7fe4-3eaa-403d-a2a3-54cdae531c33"}