Mark Hodgson
type: MusicGroup
genre: blues
description: Sir Mark Hodgson, OBE (19 November 1880 – 17 October 1967) was a British trade union leader. Early life and career Born in Hull, Hodgson grew up in Sunderland, studying at Diamond Hall School befor
popularity: 15
followers: 240
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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 0x8ce3061c36222b4ffe07d3534d96046976957be1f39ddd3aa8dd772d6a915eb2. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84daf0e3-8471-4741-a450-e34bd97e29f3.json and https://artists.proofprofile.net/proofs/artist/84daf0e3-8471-4741-a450-e34bd97e29f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:33:41Z
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album: Extreme Blues
  type: MusicAlbum
  date published: 1997-06-12
  track: Tequila Quicksand
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226000
    explicit: false
    by artist: Mark Hodgson
    in album: Extreme Blues
      type: MusicAlbum
      date published: 1997-06-12
    genre: blues
    isrc code: USASN0701315
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    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30bd7ec904df015a42af964ed79b3c284f5b4462fecab8cdbf562f4191e1188. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USASN0701315.
      date published: 2026-07-20T12:15:48Z
    audio: Tequila Quicksand
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.727
      additional property: Musical Key
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        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
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      additional property: Danceability
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      additional property: Speechiness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: 0.875
      additional property: Loudness (dB)
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        value: -5.507
      additional property: Key Name
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        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Wednesday Night At the Boot
  type: MusicAlbum
  date published: 2011-04-04