Sam Walker
type: MusicGroup
genre: comedy
popularity: 8
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a0f79317f38ffa7f9f057620992dc6d666e018b9250c342c629a13988d16034
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b27317e-7698-4e25-97d0-c4ad23d218bb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4b27317e-7698-4e25-97d0-c4ad23d218bb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4b27317e-7698-4e25-97d0-c4ad23d218bb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0a0f79317f38ffa7f9f057620992dc6d666e018b9250c342c629a13988d16034","name":"Sam Walker","registered_at":"2026-06-16T15:47:59Z","symbol":"NIM1099678","token_address":"0xa0d04c0a4bb51cf7bb0a6f05ca580f0ab624e7a2","type":"artist","uuid":"4b27317e-7698-4e25-97d0-c4ad23d218bb"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0f79317f38ffa7f9f057620992dc6d666e018b9250c342c629a13988d16034. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b27317e-7698-4e25-97d0-c4ad23d218bb.json and https://artists.proofprofile.net/proofs/artist/4b27317e-7698-4e25-97d0-c4ad23d218bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x0a0f79317f38ffa7f9f057620992dc6d666e018b9250c342c629a13988d16034","name":"Sam Walker","registered_at":"2026-06-16T15:47:59Z","symbol":"NIM1099678","token_address":"0xa0d04c0a4bb51cf7bb0a6f05ca580f0ab624e7a2","type":"artist","uuid":"4b27317e-7698-4e25-97d0-c4ad23d218bb"}
album: Barely Illegal
  type: MusicAlbum
  date published: 2020-07-03
  track: Sam Walker Entrance
    type: MusicRecording
    duration: PT0M40S
    duration ms: 40414
    explicit: true
    by artist: Sam Walker
    in album: Barely Illegal
      type: MusicAlbum
      date published: 2020-07-03
    genre: comedy
    isrc code: USHM82045160
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T20:52:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7fed4cab926e1049cd52e05e63e38be8469f1d6121fa7abafed2c649f6c85b89
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958489
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958489
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82045160
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:13:26Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fed4cab926e1049cd52e05e63e38be8469f1d6121fa7abafed2c649f6c85b89. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM82045160.
      date published: 2026-07-18T04:13:26Z
    audio: Sam Walker Entrance
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.002
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.336
      additional property: Energy
        type: PropertyValue
        value: 0.362
      additional property: Speechiness
        type: PropertyValue
        value: 0.22
      additional property: Acousticness
        type: PropertyValue
        value: 0.791
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.011
      additional property: Liveness
        type: PropertyValue
        value: 0.243
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.381
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.645
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Worked Hard All Week
    type: MusicRecording
    duration: PT1M11S
    duration ms: 71470
    explicit: true
    by artist: Sam Walker
    in album: Barely Illegal
      type: MusicAlbum
      date published: 2020-07-03
    genre: comedy
    isrc code: USHM82045166
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T22:31:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x01a65769887352d11b11485ce6147883a06e75962e1f3ee2b245877a9e3ec931
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82045166
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a65769887352d11b11485ce6147883a06e75962e1f3ee2b245877a9e3ec931. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM82045166.
      date published: 2026-07-06T01:26:17Z
    audio: Worked Hard All Week
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.274
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.447
      additional property: Energy
        type: PropertyValue
        value: 0.381
      additional property: Speechiness
        type: PropertyValue
        value: 0.863
      additional property: Acousticness
        type: PropertyValue
        value: 0.736
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.756
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.264
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -23.85

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor