Drew Walker
type: MusicGroup
popularity: 5
followers: 1012
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b48d90e7807b6c4c65c2c7e3848c6dff79ceba51943912e4fee4f85467d92d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9f7db176-e462-48b4-a96c-d0fb03ee5ca1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9f7db176-e462-48b4-a96c-d0fb03ee5ca1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9f7db176-e462-48b4-a96c-d0fb03ee5ca1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b48d90e7807b6c4c65c2c7e3848c6dff79ceba51943912e4fee4f85467d92d5","name":"Drew Walker","registered_at":"2026-06-20T04:50:58Z","symbol":"NIM1521124","token_address":"0x330efa23877eba7c1d83895e4a1135eafd8b6f85","type":"artist","uuid":"9f7db176-e462-48b4-a96c-d0fb03ee5ca1"}
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 0x6b48d90e7807b6c4c65c2c7e3848c6dff79ceba51943912e4fee4f85467d92d5. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f7db176-e462-48b4-a96c-d0fb03ee5ca1.json and https://artists.proofprofile.net/proofs/artist/9f7db176-e462-48b4-a96c-d0fb03ee5ca1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x6b48d90e7807b6c4c65c2c7e3848c6dff79ceba51943912e4fee4f85467d92d5","name":"Drew Walker","registered_at":"2026-06-20T04:50:58Z","symbol":"NIM1521124","token_address":"0x330efa23877eba7c1d83895e4a1135eafd8b6f85","type":"artist","uuid":"9f7db176-e462-48b4-a96c-d0fb03ee5ca1"}
album: Little Girl
  type: MusicAlbum
  date published: 2021-07-17
album: Down Under
  type: MusicAlbum
  date published: 2021-09-10
  track: Down Under
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219041
    explicit: false
    by artist: Drew Walker
    in album: Down Under
      type: MusicAlbum
      date published: 2021-09-10
    isrc code: AUBEC2154688
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T12:03:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x077a24280dbc413f89b423252b2deb0e4a9e66fb417c447a45f1ea197491b233
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUBEC2154688
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x077a24280dbc413f89b423252b2deb0e4a9e66fb417c447a45f1ea197491b233. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AUBEC2154688.
      date published: 2026-07-03T19:59:51Z
    audio: Down Under
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.565
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.465
      additional property: Energy
        type: PropertyValue
        value: 0.271
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.595
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.071
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.258
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.783
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Nerve
  type: MusicAlbum
  date published: 2021-11-23
album: Nature
  type: MusicAlbum
  date published: 2023-03-03
  track: Nature
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211714
    explicit: false
    by artist: Drew Walker
    in album: Nature
      type: MusicAlbum
      date published: 2023-03-03
    isrc code: AUBEC2301278
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T04:46:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x699bed4cc54f4ade2511752c56894aab3949906349efb9fe193637723e8c2631
    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/AUBEC2301278
    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 0x699bed4cc54f4ade2511752c56894aab3949906349efb9fe193637723e8c2631. 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/AUBEC2301278.
      date published: 2026-07-22T05:29:55Z
    audio: Nature
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.849
      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
        type: PropertyValue
        value: 0.336
      additional property: Energy
        type: PropertyValue
        value: 0.374
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.605
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.121

Valence (Positivity)
type: PropertyValue
value: 0.119

Loudness (dB)
type: PropertyValue
value: -13.4

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major