Ian Arthur
type: MusicGroup
description: Ian J. Arthur (born December 20, 1984) is a former Canadian politician, first elected to the Legislative Assembly of Ontario in the 2018 provincial election."NDP's Ian Arthur elected in Kingston and
popularity: 6
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x92475ca249c7e58e7a8624add70864984a8a7fe2d138ff68747914058a0f05aa
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954623
additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/cc53e14d-de37-4025-9dd5-d969006dd419.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc53e14d-de37-4025-9dd5-d969006dd419.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc53e14d-de37-4025-9dd5-d969006dd419
additional property: OTSTimestamp
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  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x92475ca249c7e58e7a8624add70864984a8a7fe2d138ff68747914058a0f05aa","name":"Ian Arthur","registered_at":"2026-06-20T23:12:54Z","symbol":"NIM1744224","token_address":"0x9def904c658117dd344ffa70d5d11e2bf06947c4","type":"artist","uuid":"cc53e14d-de37-4025-9dd5-d969006dd419"}
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 0x92475ca249c7e58e7a8624add70864984a8a7fe2d138ff68747914058a0f05aa. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc53e14d-de37-4025-9dd5-d969006dd419.json and https://artists.proofprofile.net/proofs/artist/cc53e14d-de37-4025-9dd5-d969006dd419.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x92475ca249c7e58e7a8624add70864984a8a7fe2d138ff68747914058a0f05aa","name":"Ian Arthur","registered_at":"2026-06-20T23:12:54Z","symbol":"NIM1744224","token_address":"0x9def904c658117dd344ffa70d5d11e2bf06947c4","type":"artist","uuid":"cc53e14d-de37-4025-9dd5-d969006dd419"}
album: Home (Goodbye With Grace)
  type: MusicAlbum
  date published: 2024-09-25
album: Simple Truth
  type: MusicAlbum
  date published: 2025-01-02
  track: Simple Truth
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184800
    explicit: false
    by artist: Ian Arthur
    in album: Simple Truth
      type: MusicAlbum
      date published: 2025-01-02
    isrc code: UKQ5N2420083
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      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/UKQ5N2420083
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:26:15Z
    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 0x0b01f843dac6b2ed1ceed96ff66232cb92d7b0b9efdcdc85d47566f5f0f9bfe5. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/UKQ5N2420083 — a six-check JSON result.
      date published: 2026-07-14T21:26:15Z
    audio: Simple Truth
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.029
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.626
      additional property: Energy
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        value: 0.706
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
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        value: 0.061
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.066
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.666
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.831
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Waiting For You
  type: MusicAlbum
  date published: 2025-03-13
album: I Should Have Seen The Signs
  type: MusicAlbum
  date published: 2025-04-25
album: Hammer To The Nail
  type: MusicAlbum
  date published: 2025-05-30