David Knowles
type: MusicGroup
description: David Knowles may refer to: David Knowles (California politician) (born 1952), California State Representative David Knowles (cricketer) (born 1948), New Zealand cricketer David Knowles (footballer)
popularity: 8
followers: 1228
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc269463b8e6a546e18238258e5a0ede262d4bdd7921e7ea2701a095eb124e850
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953924
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953924
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d1e9725-fd76-440d-936f-45be81937ae6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d1e9725-fd76-440d-936f-45be81937ae6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d1e9725-fd76-440d-936f-45be81937ae6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:52:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc269463b8e6a546e18238258e5a0ede262d4bdd7921e7ea2701a095eb124e850","name":"David Knowles","registered_at":"2026-06-15T23:44:40Z","symbol":"NIM0869716","token_address":"0x745cf39d7b0c6f0a27d642cab568bac10036990e","type":"artist","uuid":"1d1e9725-fd76-440d-936f-45be81937ae6"}
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 0xc269463b8e6a546e18238258e5a0ede262d4bdd7921e7ea2701a095eb124e850. Chain 2 (Bitcoin): anchored in block 953924 (2026-06-16T09:52:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d1e9725-fd76-440d-936f-45be81937ae6.json and https://artists.proofprofile.net/proofs/artist/1d1e9725-fd76-440d-936f-45be81937ae6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:52:28Z
  text: {"copyright_id":"0xc269463b8e6a546e18238258e5a0ede262d4bdd7921e7ea2701a095eb124e850","name":"David Knowles","registered_at":"2026-06-15T23:44:40Z","symbol":"NIM0869716","token_address":"0x745cf39d7b0c6f0a27d642cab568bac10036990e","type":"artist","uuid":"1d1e9725-fd76-440d-936f-45be81937ae6"}
album: The Alchemist - EP
  type: MusicAlbum
  date published: 2015-01-19
album: Footsteps
  type: MusicAlbum
  date published: 2015-03-09
album: Silence in the Storm - EP
  type: MusicAlbum
  date published: 2015-11-21
album: Blackest Night
  type: MusicAlbum
  date published: 2023-01-09
album: Devil's Cards (Live at Chamber Studio)
  type: MusicAlbum
  date published: 2023-02-20
album: Beneath a Diamond Sky
  type: MusicAlbum
  date published: 2023-03-13
album: The End (Solo Acoustic)
  type: MusicAlbum
  date published: 2023-04-24
album: The Air You Breathe
  type: MusicAlbum
  date published: 2023-05-28
  track: The Air You Breathe
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173965
    explicit: false
    by artist: David Knowles
    in album: The Air You Breathe
      type: MusicAlbum
      date published: 2023-05-28
    isrc code: USHM22377835
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:34:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbdc8b8f0bf2fcad9287632d678b25a1ff04860f7d0946f0ef300800c90103e42
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22377835
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:17:00Z
    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 0xbdc8b8f0bf2fcad9287632d678b25a1ff04860f7d0946f0ef300800c90103e42. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USHM22377835.
      date published: 2026-07-12T23:17:00Z
    audio: The Air You Breathe
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.019
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.637
      additional property: Energy
        type: PropertyValue
        value: 0.167
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.893
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.609
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.492
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.888
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Satisfy My Soul
    type: MusicRecording
    duration: PT1M55S
    duration ms: 115285
    explicit: false
    by artist: David Knowles
    in album: The Air You Breathe
      type: MusicAlbum
      date published: 2023-05-28
    isrc code: USHM22377836
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T04:08:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x06b69f61a59607dd72d6023e27f1eeef2955756b36eb50f02f620b5714264b7a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959100
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959100
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22377836
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:29:55Z
    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 0x06b69f61a59607dd72d6023e27f1eeef2955756b36eb50f02f620b5714264b7a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USHM22377836.
      date published: 2026-07-22T05:29:55Z
    audio: Satisfy My Soul
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.434
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Following the Sun

Danceability
type: PropertyValue
value: 0.468

Energy
type: PropertyValue
value: 0.168

Speechiness
type: PropertyValue
value: 0.038

Acousticness
type: PropertyValue
value: 0.836

Instrumentalness
type: PropertyValue
value: 0.022

Liveness
type: PropertyValue
value: 0.112

Valence (Positivity)
type: PropertyValue
value: 0.333

Loudness (dB)
type: PropertyValue
value: -16.176

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Following the Sun
type: MusicAlbum
date published: 2023-09-25