Luke Francis
type: MusicGroup
description: Luke Francis is a Welsh rally driver in the BTRDA Forest Rally from Rhuddlan, Denbighshire. He is the third generation of a racing family, following his father and grandfather. Career In 2012 and 201
popularity: 6
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x2189da94b516f7312a149d2d7ee28139784d6a51343ac6671a5a361f9d1cf9d4
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/73cc0ad0-6e91-433f-9960-d1ea64908f05.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73cc0ad0-6e91-433f-9960-d1ea64908f05.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73cc0ad0-6e91-433f-9960-d1ea64908f05
additional property: OTSTimestamp
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  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2189da94b516f7312a149d2d7ee28139784d6a51343ac6671a5a361f9d1cf9d4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73cc0ad0-6e91-433f-9960-d1ea64908f05.json and https://artists.proofprofile.net/proofs/artist/73cc0ad0-6e91-433f-9960-d1ea64908f05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2189da94b516f7312a149d2d7ee28139784d6a51343ac6671a5a361f9d1cf9d4","name":"Luke Francis","registered_at":"2026-06-17T05:53:00Z","symbol":"NIM1301303","token_address":"0xdf52a6041557d4bd9103bed61260e80bf6fae9d1","type":"artist","uuid":"73cc0ad0-6e91-433f-9960-d1ea64908f05"}
album: Trouble
  type: MusicAlbum
  date published: 2024-03-15
album: On Hold
  type: MusicAlbum
  date published: 2025-02-28
  track: On Hold
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205426
    explicit: false
    by artist: Luke Francis
    in album: On Hold
      type: MusicAlbum
      date published: 2025-02-28
    isrc code: AUBEC2509809
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    additional property: CopyrightStatus
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      value: registered
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUBEC2509809
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T10:20:17Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b158fe5623f6c905c0802eb954f00ba7f768667c6b14150cdb308a496fa65e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/AUBEC2509809.
      date published: 2026-07-16T10:20:17Z
    audio: On Hold
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.022
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.768
      additional property: Energy
        type: PropertyValue
        value: 0.524
      additional property: Speechiness
        type: PropertyValue
        value: 0.143
      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0.134
      additional property: Liveness
        type: PropertyValue
        value: 0.092
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.479
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.167
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Last That I Heard
  type: MusicAlbum
  date published: 2025-04-11