John Pickard
type: MusicGroup
description: John Pickard may refer to: John Pickard (archaeologist) (1858–1937), University of Missouri professor of archaeology and art history John Pickard (politician) (1824–1883), Canadian businessman and p
popularity: 2
followers: 386
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1474dbd856034ccb664dacd65863add61001fea8a6dc1af3eddad08ea89722d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2f197c0-e0a6-467d-ad95-8a8cc34e1244.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2f197c0-e0a6-467d-ad95-8a8cc34e1244.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2f197c0-e0a6-467d-ad95-8a8cc34e1244
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1474dbd856034ccb664dacd65863add61001fea8a6dc1af3eddad08ea89722d3","name":"John Pickard","registered_at":"2026-06-20T12:53:42Z","symbol":"NIM1616740","token_address":"0x16efe4e748110c7cadb7f7a8f946a372673933c3","type":"artist","uuid":"b2f197c0-e0a6-467d-ad95-8a8cc34e1244"}
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 0x1474dbd856034ccb664dacd65863add61001fea8a6dc1af3eddad08ea89722d3. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2f197c0-e0a6-467d-ad95-8a8cc34e1244.json and https://artists.proofprofile.net/proofs/artist/b2f197c0-e0a6-467d-ad95-8a8cc34e1244.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x1474dbd856034ccb664dacd65863add61001fea8a6dc1af3eddad08ea89722d3","name":"John Pickard","registered_at":"2026-06-20T12:53:42Z","symbol":"NIM1616740","token_address":"0x16efe4e748110c7cadb7f7a8f946a372673933c3","type":"artist","uuid":"b2f197c0-e0a6-467d-ad95-8a8cc34e1244"}
album: John Pickard: The Gardener of Aleppo & Other Chamber Works
  type: MusicAlbum
  date published: 2020-05-01