Jack Watson
type: MusicGroup
description: Jack Watson may refer to: Jack Watson (actor) (1915–1999), English actor Jack Watson (American football) (1893–1963), American football player and coach Jack Watson (Australian footballer) (1927–2013
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a4e74613d481635ada47304b27cad230e332f796cc3fcc60d0bfd9be90808ac
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/6d73065c-9404-41a2-8d56-03f8f80a6be3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d73065c-9404-41a2-8d56-03f8f80a6be3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6d73065c-9404-41a2-8d56-03f8f80a6be3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a4e74613d481635ada47304b27cad230e332f796cc3fcc60d0bfd9be90808ac","name":"Jack Watson","registered_at":"2026-06-17T03:49:45Z","symbol":"NIM1271887","token_address":"0xe6cbd1833c1d871c3804180a5ad58e87ee3d1b2d","type":"artist","uuid":"6d73065c-9404-41a2-8d56-03f8f80a6be3"}
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 0x1a4e74613d481635ada47304b27cad230e332f796cc3fcc60d0bfd9be90808ac. 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/6d73065c-9404-41a2-8d56-03f8f80a6be3.json and https://artists.proofprofile.net/proofs/artist/6d73065c-9404-41a2-8d56-03f8f80a6be3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1a4e74613d481635ada47304b27cad230e332f796cc3fcc60d0bfd9be90808ac","name":"Jack Watson","registered_at":"2026-06-17T03:49:45Z","symbol":"NIM1271887","token_address":"0xe6cbd1833c1d871c3804180a5ad58e87ee3d1b2d","type":"artist","uuid":"6d73065c-9404-41a2-8d56-03f8f80a6be3"}