John Butt
type: MusicGroup
genre: choral
genre: requiem
description: John Butt may refer to: John Butt (bishop) (1826–1899), English Roman Catholic bishop John Butt (musician) (born 1960), English conductor, organist, harpsichordist and scholar John Butt (politicia
popularity: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde57a2ddbedc35f0624aa206be9e3794ac952ae1f252f403c12d96fedf9490f6
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8802a171-d2b8-42a4-a4b4-ab72b700f667.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8802a171-d2b8-42a4-a4b4-ab72b700f667.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8802a171-d2b8-42a4-a4b4-ab72b700f667
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde57a2ddbedc35f0624aa206be9e3794ac952ae1f252f403c12d96fedf9490f6. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8802a171-d2b8-42a4-a4b4-ab72b700f667.json and https://artists.proofprofile.net/proofs/artist/8802a171-d2b8-42a4-a4b4-ab72b700f667.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xde57a2ddbedc35f0624aa206be9e3794ac952ae1f252f403c12d96fedf9490f6","name":"John Butt","registered_at":"2026-06-17T13:03:26Z","symbol":"NIM1403836","token_address":"0x24a31ed43c8cc10053cf508b9dd99d3e4e5f9b78","type":"artist","uuid":"8802a171-d2b8-42a4-a4b4-ab72b700f667"}
track: Fauré: Messe basse: Benedictus
  type: MusicRecording
  duration: PT2M8S
  duration ms: 128893
  explicit: false
  by artist: Gabriel Fauré
  by artist: Choir of King's College, Cambridge
  by artist: Paul Smy
  by artist: John Butt
  by artist: Philip Ledger
  in album: Fauré: Requiem, etc.
    type: MusicAlbum
    date published: 1998
  isrc code: GBAYC8200104
  additional property: CopyrightID
  additional property: CopyrightStatus
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    value: registered
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    type: PropertyValue
    value: 2026-06-25T22:34:47+00:00
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    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc483d229a1a8f2f3879fc05802d7e384a9b61281f6af85233b3a76177362d2cf
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    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200104
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0xc483d229a1a8f2f3879fc05802d7e384a9b61281f6af85233b3a76177362d2cf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200104.
    date published: 2026-07-02T03:55:08Z
  audio: Fauré: Messe basse: Benedictus
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.241
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
      value: 0.01
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.023
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.091
    additional property: Loudness (dB)
      type: PropertyValue
      value: -38.238
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major