Vic Chapman
type: MusicGroup
description: Victor Garbutt Chapman (April 28, 1932 – December 21, 1987) was a Canadian press secretary who worked for Prime Minister Pierre Trudeau and the British royal family. He previously played professional
popularity: 2
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x277f1290cb8d8a6b110fc8cd1b1359bbb163b77f49f3203e6be935128b4fca17
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953846
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953846
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01403033-55d3-43aa-956c-dbdadb97b736.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01403033-55d3-43aa-956c-dbdadb97b736.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/01403033-55d3-43aa-956c-dbdadb97b736
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:48:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x277f1290cb8d8a6b110fc8cd1b1359bbb163b77f49f3203e6be935128b4fca17","name":"Vic Chapman","registered_at":"2026-06-15T13:58:35Z","symbol":"NIM0729864","token_address":"0x1e3c186a33cb93e47751395a54b1c8b7a257c2a5","type":"artist","uuid":"01403033-55d3-43aa-956c-dbdadb97b736"}
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 0x277f1290cb8d8a6b110fc8cd1b1359bbb163b77f49f3203e6be935128b4fca17. Chain 2 (Bitcoin): anchored in block 953846 (2026-06-15T22:48:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01403033-55d3-43aa-956c-dbdadb97b736.json and https://artists.proofprofile.net/proofs/artist/01403033-55d3-43aa-956c-dbdadb97b736.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T22:48:34Z
  text: {"copyright_id":"0x277f1290cb8d8a6b110fc8cd1b1359bbb163b77f49f3203e6be935128b4fca17","name":"Vic Chapman","registered_at":"2026-06-15T13:58:35Z","symbol":"NIM0729864","token_address":"0x1e3c186a33cb93e47751395a54b1c8b7a257c2a5","type":"artist","uuid":"01403033-55d3-43aa-956c-dbdadb97b736"}
album: Alex Wells
  type: MusicAlbum
  date published: 2022-06-10
  track: Alex Wells
    type: MusicRecording
    duration: PT0M41S
    duration ms: 41558
    explicit: false
    by artist: Vic Chapman
    in album: Alex Wells
      type: MusicAlbum
      date published: 2022-06-10
    isrc code: QZQAY2277329
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:24:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbf1ac6fcaaf6c3bd13d8c609e5ed2dce5fe0b61454ca2df12e264d0d42716f8d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2277329
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xbf1ac6fcaaf6c3bd13d8c609e5ed2dce5fe0b61454ca2df12e264d0d42716f8d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2277329 — a six-check JSON result.
      date published: 2026-07-05T10:01:46Z
    audio: Alex Wells
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 184.791
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.237
      additional property: Energy
        type: PropertyValue
        value: 0.046
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.856
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.949
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.124
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.789
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Gorge of Mist
  type: MusicAlbum
  date published: 2022-06-10
album: Leigh Rose
  type: MusicAlbum
  date published: 2022-06-10
album: Kai Barrett
  type: MusicAlbum
  date published: 2022-06-10