Ian O'Brien
type: MusicGroup
genre: nu jazz
description: Ian Lovett O'Brien (born 3 March 1947) is an Australian breaststroke swimmer of the 1960s who won the 200 metre breaststroke at the 1964 Summer Olympics in Tokyo in world record time. He won five Comm
popularity: 15
followers: 2068
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/4bf4ffa1-0207-4a1d-be1f-f47adecccd57.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4bf4ffa1-0207-4a1d-be1f-f47adecccd57.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4bf4ffa1-0207-4a1d-be1f-f47adecccd57
additional property: OTSTimestamp
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  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0xadd36a6624989d6984b193f41d1e5a5c49a033a84c7ba0dfbe82764ff6b6689f","name":"Ian O'Brien","registered_at":"2026-06-14T12:23:50Z","symbol":"NIM0451914","token_address":"0x6ec9ce7257f4e4af0093fe429e7dd8313ec78365","type":"artist","uuid":"4bf4ffa1-0207-4a1d-be1f-f47adecccd57"}
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 0xadd36a6624989d6984b193f41d1e5a5c49a033a84c7ba0dfbe82764ff6b6689f. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bf4ffa1-0207-4a1d-be1f-f47adecccd57.json and https://artists.proofprofile.net/proofs/artist/4bf4ffa1-0207-4a1d-be1f-f47adecccd57.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0xadd36a6624989d6984b193f41d1e5a5c49a033a84c7ba0dfbe82764ff6b6689f","name":"Ian O'Brien","registered_at":"2026-06-14T12:23:50Z","symbol":"NIM0451914","token_address":"0x6ec9ce7257f4e4af0093fe429e7dd8313ec78365","type":"artist","uuid":"4bf4ffa1-0207-4a1d-be1f-f47adecccd57"}
album: Desert Scores (2011 Digital Version)
  type: MusicAlbum
  date published: 1996-09-02
album: Gigantic Days
  type: MusicAlbum
  date published: 1999-01-01
  track: Midnight Sunshine
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214533
    explicit: false
    by artist: Ian O'Brien
    in album: Gigantic Days
      type: MusicAlbum
      date published: 1999-01-01
    genre: nu jazz
    isrc code: GBEWK9900031
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/958202
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBEWK9900031
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T21:23:21Z
    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 0xd6d197d72fd0a9fa219a3e7f90035703b9f62cde042bdf544dc7f367742328a8. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/GBEWK9900031 — a six-check JSON result.
      date published: 2026-07-15T21:23:21Z
    audio: Midnight Sunshine
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.333
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.541
      additional property: Energy
        type: PropertyValue
        value: 0.466
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.015
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.791
      additional property: Liveness
        type: PropertyValue
        value: 0.153
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.468
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.271
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: History Of Things To Come
  type: MusicAlbum
  date published: 2002-12-11
album: Understanding Is Everything
  type: MusicAlbum
  date published: 2013-11-05
album: Poems 1-16
  type: MusicAlbum
  date published: 2013-11-05