John Alcock
type: MusicGroup
genre: art rock
genre: progressive rock
popularity: 2
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x298a57d6cf260e1419fd4376e78bf2bd535655d7f9b0c75116e6fde414ce123b
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2a512e2-f4ab-473c-add3-a64c11f65f2a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2a512e2-f4ab-473c-add3-a64c11f65f2a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c2a512e2-f4ab-473c-add3-a64c11f65f2a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x298a57d6cf260e1419fd4376e78bf2bd535655d7f9b0c75116e6fde414ce123b","name":"John Alcock","registered_at":"2026-06-20T20:03:45Z","symbol":"NIM1700836","token_address":"0x93e01702c147c48b0ff5ea979d1236c396ce5de7","type":"artist","uuid":"c2a512e2-f4ab-473c-add3-a64c11f65f2a"}
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 0x298a57d6cf260e1419fd4376e78bf2bd535655d7f9b0c75116e6fde414ce123b. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2a512e2-f4ab-473c-add3-a64c11f65f2a.json and https://artists.proofprofile.net/proofs/artist/c2a512e2-f4ab-473c-add3-a64c11f65f2a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x298a57d6cf260e1419fd4376e78bf2bd535655d7f9b0c75116e6fde414ce123b","name":"John Alcock","registered_at":"2026-06-20T20:03:45Z","symbol":"NIM1700836","token_address":"0x93e01702c147c48b0ff5ea979d1236c396ce5de7","type":"artist","uuid":"c2a512e2-f4ab-473c-add3-a64c11f65f2a"}
album: Voluntary no 5 in G (pipe organ)
  type: MusicAlbum
  date published: 2024-03-03
album: Voluntary no 2 in F (pipe organ)
  type: MusicAlbum
  date published: 2024-03-03
track: Voluntary in D Major: II. Allegro
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184040
  explicit: false
  by artist: John Alcock
  by artist: Ludwig Güttler
  by artist: Friedrich Kircheis
  in album: Ludwig Güttler in der Frauenkirche Dresden
    type: MusicAlbum
    date published: 2007
  isrc code: DES380723011
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-31T05:39:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0f8890cee8dbd1384fa96bb99543031dff09152ba6cb86f24051e43b2e2e17ee
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 960354
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960354
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380723011
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T05:48:18Z
  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 0x0f8890cee8dbd1384fa96bb99543031dff09152ba6cb86f24051e43b2e2e17ee. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DES380723011 — a six-check JSON result.
    date published: 2026-07-31T05:48:18Z
  audio: Voluntary in D Major: II. Allegro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.621
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.302
    additional property: Energy
      type: PropertyValue
      value: 0.192
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.64
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.935
    additional property: Liveness
      type: PropertyValue
      value: 0.192
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.285
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.746
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Psalm 91: Whoso Dwelleth Under the Defence
  type: MusicRecording
  duration: PT4M25S
  duration ms: 265800
  explicit: false
  by artist: John Alcock
  by artist: The Choir Of Westminster Abbey
  by artist: London Brass
  by artist: Martin Neary
  by artist: Martin Baker
  by artist: Iain Simcock
  in album: The Queen's Diamond Jubilee - Royal Music from Westminster Abbey
    type: MusicAlbum
    date published: 2012-05-08
  isrc code: GBC7N1247715
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T21:39:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb324b8718a75616c8d264655cb9be5d6cd7d940ce92f4fbe19fcb2721b2e4834
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960150
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960150
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBC7N1247715
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T21:51:49Z
  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 0xb324b8718a75616c8d264655cb9be5d6cd7d940ce92f4fbe19fcb2721b2e4834. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBC7N1247715 — a six-check JSON result.
    date published: 2026-07-29T21:51:49Z
  audio: Psalm 91: Whoso Dwelleth Under the Defence
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.591
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.126
    additional property: Energy
      type: PropertyValue
      value: 0.147
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Acousticness
type: PropertyValue
value: 0.978

Instrumentalness
type: PropertyValue
value: 0.912

Liveness
type: PropertyValue
value: 0.073

Valence (Positivity)
type: PropertyValue
value: 0.039

Loudness (dB)
type: PropertyValue
value: -26.398

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major