Len Walker
type: MusicGroup
description: Leonard Walker (born 4 March 1944) is an English former football player and manager. He was the manager of Aldershot from July 1981 until November 1984, and then June 1985 until 11 April 1991. Playin
popularity: 13
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41af67d6e3a9cd192eaf111812a4598721a1be742059350626855ab9f1ce6cfc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953678
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953678
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62d81779-69a5-4f62-87ac-9692b1c51c78.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/62d81779-69a5-4f62-87ac-9692b1c51c78.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/62d81779-69a5-4f62-87ac-9692b1c51c78
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:23:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x41af67d6e3a9cd192eaf111812a4598721a1be742059350626855ab9f1ce6cfc","name":"Len Walker","registered_at":"2026-06-14T14:53:28Z","symbol":"NIM0487625","token_address":"0x9e9c45b8eceb033b0860a13df4f5a790035be88c","type":"artist","uuid":"62d81779-69a5-4f62-87ac-9692b1c51c78"}
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 0x41af67d6e3a9cd192eaf111812a4598721a1be742059350626855ab9f1ce6cfc. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62d81779-69a5-4f62-87ac-9692b1c51c78.json and https://artists.proofprofile.net/proofs/artist/62d81779-69a5-4f62-87ac-9692b1c51c78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:23:11Z
  text: {"copyright_id":"0x41af67d6e3a9cd192eaf111812a4598721a1be742059350626855ab9f1ce6cfc","name":"Len Walker","registered_at":"2026-06-14T14:53:28Z","symbol":"NIM0487625","token_address":"0x9e9c45b8eceb033b0860a13df4f5a790035be88c","type":"artist","uuid":"62d81779-69a5-4f62-87ac-9692b1c51c78"}
album: Divine Proportions
  type: MusicAlbum
  date published: 2025-02-23