Chris Leonard
type: MusicGroup
description: Christopher Leonard (11 July 1927 – 1987) was an English footballer who made 26 appearances in the Football League playing as a centre half for Darlington in the 1950s. He also played non-league footb
popularity: 6
followers: 409
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1af0ef2f1fd56b30821e2151c188622f26536b4dfa5c4a1641d80076846ee735
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb24d9b4-ad40-4a1a-8bf1-a543899a857b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb24d9b4-ad40-4a1a-8bf1-a543899a857b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb24d9b4-ad40-4a1a-8bf1-a543899a857b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1af0ef2f1fd56b30821e2151c188622f26536b4dfa5c4a1641d80076846ee735","name":"Chris Leonard","registered_at":"2026-06-20T23:17:37Z","symbol":"NIM1745374","token_address":"0x6be309a8569562c86318f729c56e31b940b34bb9","type":"artist","uuid":"cb24d9b4-ad40-4a1a-8bf1-a543899a857b"}
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 0x1af0ef2f1fd56b30821e2151c188622f26536b4dfa5c4a1641d80076846ee735. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb24d9b4-ad40-4a1a-8bf1-a543899a857b.json and https://artists.proofprofile.net/proofs/artist/cb24d9b4-ad40-4a1a-8bf1-a543899a857b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x1af0ef2f1fd56b30821e2151c188622f26536b4dfa5c4a1641d80076846ee735","name":"Chris Leonard","registered_at":"2026-06-20T23:17:37Z","symbol":"NIM1745374","token_address":"0x6be309a8569562c86318f729c56e31b940b34bb9","type":"artist","uuid":"cb24d9b4-ad40-4a1a-8bf1-a543899a857b"}
album: Kiss in Cali
  type: MusicAlbum
  date published: 2019-03-22
album: Fix
  type: MusicAlbum
  date published: 2021-05-14