Walter Willison
type: MusicGroup
description: Walter Willison (born June 24, 1947) is an American stage actor. Career He starred on Broadway in Norman, Is That You?, Two By Two, Pippin (as Pippin), Wild and Wonderful, Grand Hotel, A Christmas
popularity: 4
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20e2fdfbc27996f32d481985b5b0bd929f1a2baabc06eaf53a723d7df2b86ce7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4289f355-fe72-43ac-83cc-bf705c904c41.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4289f355-fe72-43ac-83cc-bf705c904c41.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4289f355-fe72-43ac-83cc-bf705c904c41
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x20e2fdfbc27996f32d481985b5b0bd929f1a2baabc06eaf53a723d7df2b86ce7","name":"Walter Willison","registered_at":"2026-06-16T12:46:05Z","symbol":"NIM1056266","token_address":"0x56f91a57cdef03d7582e9f4d6b3c6b8211135c2c","type":"artist","uuid":"4289f355-fe72-43ac-83cc-bf705c904c41"}
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 0x20e2fdfbc27996f32d481985b5b0bd929f1a2baabc06eaf53a723d7df2b86ce7. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4289f355-fe72-43ac-83cc-bf705c904c41.json and https://artists.proofprofile.net/proofs/artist/4289f355-fe72-43ac-83cc-bf705c904c41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:56:08Z
  text: {"copyright_id":"0x20e2fdfbc27996f32d481985b5b0bd929f1a2baabc06eaf53a723d7df2b86ce7","name":"Walter Willison","registered_at":"2026-06-16T12:46:05Z","symbol":"NIM1056266","token_address":"0x56f91a57cdef03d7582e9f4d6b3c6b8211135c2c","type":"artist","uuid":"4289f355-fe72-43ac-83cc-bf705c904c41"}