Harry Stafford
type: MusicGroup
description: Harry Stafford (1869–1940) was an English footballer who played a principal role in the formation of Manchester United Football Club. Born in Crewe, Cheshire, Stafford became a locomotive boilermaker
popularity: 2
followers: 290
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf806d9d91c2097469c289e144a66eef70c679cdbb905450309ba5297b6505890
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8037b00-ee90-4813-bc62-c7368d4056bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8037b00-ee90-4813-bc62-c7368d4056bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b8037b00-ee90-4813-bc62-c7368d4056bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf806d9d91c2097469c289e144a66eef70c679cdbb905450309ba5297b6505890","name":"Harry Stafford","registered_at":"2026-06-20T16:05:08Z","symbol":"NIM1649087","token_address":"0xcdef3bc67db50f01ea884b3e4ce06f7f9658d190","type":"artist","uuid":"b8037b00-ee90-4813-bc62-c7368d4056bd"}
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 0xf806d9d91c2097469c289e144a66eef70c679cdbb905450309ba5297b6505890. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8037b00-ee90-4813-bc62-c7368d4056bd.json and https://artists.proofprofile.net/proofs/artist/b8037b00-ee90-4813-bc62-c7368d4056bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf806d9d91c2097469c289e144a66eef70c679cdbb905450309ba5297b6505890","name":"Harry Stafford","registered_at":"2026-06-20T16:05:08Z","symbol":"NIM1649087","token_address":"0xcdef3bc67db50f01ea884b3e4ce06f7f9658d190","type":"artist","uuid":"b8037b00-ee90-4813-bc62-c7368d4056bd"}
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