John B. Williams
type: MusicGroup
popularity: 11
followers: 44
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33722bcfcd8d975e9e3feae077eae71c321d52ebafd4266e3a79e5e601de5fcc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a78dc48c-9896-42c6-a356-f846f1bbab1d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a78dc48c-9896-42c6-a356-f846f1bbab1d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a78dc48c-9896-42c6-a356-f846f1bbab1d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x33722bcfcd8d975e9e3feae077eae71c321d52ebafd4266e3a79e5e601de5fcc","name":"John B. Williams","registered_at":"2026-06-14T22:08:05Z","symbol":"NIM0591258","token_address":"0xde255046918b949a1535461c345b2458dc6c2e92","type":"artist","uuid":"a78dc48c-9896-42c6-a356-f846f1bbab1d"}
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 0x33722bcfcd8d975e9e3feae077eae71c321d52ebafd4266e3a79e5e601de5fcc. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a78dc48c-9896-42c6-a356-f846f1bbab1d.json and https://artists.proofprofile.net/proofs/artist/a78dc48c-9896-42c6-a356-f846f1bbab1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0x33722bcfcd8d975e9e3feae077eae71c321d52ebafd4266e3a79e5e601de5fcc","name":"John B. Williams","registered_at":"2026-06-14T22:08:05Z","symbol":"NIM0591258","token_address":"0xde255046918b949a1535461c345b2458dc6c2e92","type":"artist","uuid":"a78dc48c-9896-42c6-a356-f846f1bbab1d"}
album: Gratitude
  type: MusicAlbum
  date published: 2005
album: Gratitude
  type: MusicAlbum
  date published: 2008-12-23
album: Arabesque
  type: MusicAlbum
  date published: 2011-03-01
album: African Queen - a tribute to Horace Silver
  type: MusicAlbum
  date published: 2014-06-02
album: Arabesque
  type: MusicAlbum
  date published: 2022-01-07