Mark Chadwick
type: MusicGroup
genre: folk punk
description: Mark Robert Chadwick (born 9 February 1963) is a former English cricketer active from 1983 to 1987 who played for Lancashire. He was born in Rochdale. He appeared in 33 first-class matches as a righth
popularity: 7
followers: 997
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554f80e91850bbca599cf6fb4fce9c3647742688af9bba68d612f2c0b3ebdfcc. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16b2cc91-bb7b-4c3b-bfa5-323dc713ac88.json and https://artists.proofprofile.net/proofs/artist/16b2cc91-bb7b-4c3b-bfa5-323dc713ac88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
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album: All The Pieces
  type: MusicAlbum
  date published: 2010-09-05
album: Moment
  type: MusicAlbum
  date published: 2014-06-15
album: Moment
  type: MusicAlbum
  date published: 2014-06-15
album: All The Pieces
  type: MusicAlbum
  date published: 2015-11-06
  track: All The Pieces
    type: MusicRecording
    duration: PT2M58S
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    explicit: false
    by artist: Mark Chadwick
    in album: All The Pieces
      type: MusicAlbum
      date published: 2015-11-06
    genre: folk punk
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    additional property: OTSTimestamp
      type: PropertyValue
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    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 0x19ae7c30be7cce54aaa37b9d21e9cdd84fca1d2b3586d4752921fb6b7ef8a6c1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBNVH1500054.
      date published: 2026-07-06T07:53:57Z
    audio: All The Pieces
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
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        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
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        value: 0.366
      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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        value: -9.178
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: All The Pieces
  type: MusicAlbum
  date published: 2015-11-06