Claude Larson
type: MusicGroup
genre: krautrock
genre: new age
popularity: 19
followers: 4003
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42b76f361df5f4edeab734fd1c6f73e0114b56b84c71a7cb7200bfbf182d15c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a3bcddb-564e-4b32-a125-f60f7e807acb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a3bcddb-564e-4b32-a125-f60f7e807acb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a3bcddb-564e-4b32-a125-f60f7e807acb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42b76f361df5f4edeab734fd1c6f73e0114b56b84c71a7cb7200bfbf182d15c4","name":"Claude Larson","registered_at":"2026-06-14T08:52:16Z","symbol":"NIM0401455","token_address":"0x54f8e46736f7f454b9b94d5da8eff3b02012e911","type":"artist","uuid":"2a3bcddb-564e-4b32-a125-f60f7e807acb"}
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 0x42b76f361df5f4edeab734fd1c6f73e0114b56b84c71a7cb7200bfbf182d15c4. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a3bcddb-564e-4b32-a125-f60f7e807acb.json and https://artists.proofprofile.net/proofs/artist/2a3bcddb-564e-4b32-a125-f60f7e807acb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0x42b76f361df5f4edeab734fd1c6f73e0114b56b84c71a7cb7200bfbf182d15c4","name":"Claude Larson","registered_at":"2026-06-14T08:52:16Z","symbol":"NIM0401455","token_address":"0x54f8e46736f7f454b9b94d5da8eff3b02012e911","type":"artist","uuid":"2a3bcddb-564e-4b32-a125-f60f7e807acb"}
album: Environment
  type: MusicAlbum
  date published: 1978-01-01
album: Surroundings
  type: MusicAlbum
  date published: 1979-01-01
  track: Highway E 1
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225977
    explicit: false
    by artist: Claude Larson
    in album: Surroundings
      type: MusicAlbum
      date published: 1979-01-01
    genre: krautrock
    genre: new age
    isrc code: DEC177901491
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T08:12:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1d914f84ccbdc77df8369ee16694ec49c00a59662fa5ee363c402716b14b0bae
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC177901491
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x1d914f84ccbdc77df8369ee16694ec49c00a59662fa5ee363c402716b14b0bae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEC177901491.
      date published: 2026-07-05T10:01:46Z
    audio: Highway E 1
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.648
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.523
      additional property: Energy
        type: PropertyValue
        value: 0.751
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.143
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.935
      additional property: Liveness
        type: PropertyValue
        value: 0.15
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.97
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.315
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Scenic Sequences
  type: MusicAlbum
  date published: 1979-06-30
album: Industrial Future
  type: MusicAlbum
  date published: 1979-07-31
album: Panorama
  type: MusicAlbum
  date published: 1980-01-01
album: Rivers
  type: MusicAlbum
  date published: 1981-01-01
album: Digital Patterns
  type: MusicAlbum
  date published: 1981-03-10
album: Climax
  type: MusicAlbum
  date published: 1981-11-12
album: Materials - Dynamic Meditations Vol. 2
  type: MusicAlbum
  date published: 1982-01-01
album: Far East Impressions
  type: MusicAlbum
  date published: 1982-03-15
album: Middle East Impressions
  type: MusicAlbum
  date published: 1982-03-15
album: Digital Landscape
  type: MusicAlbum
  date published: 1983-01-01
album: Soundscapes
  type: MusicAlbum
  date published: 1983-01-31
album: Dramatic Impact
  type: MusicAlbum
  date published: 1983-06-15
album: Great Product - Jingle & Idents
  type: MusicAlbum
  date published: 1984-01-31
album: Museff - Musical Effects Unlimited
  type: MusicAlbum
  date published: 1984-06-30
album: Soundscapes, Vol. 2
  type: MusicAlbum
  date published: 1984-06-30
album: Magnetic Island
  type: MusicAlbum
  date published: 1985-01-01
album: Synchrosonic Patterns
  type: MusicAlbum
  date published: 1985-06-30
album: Synchrosonic Patterns
  type: MusicAlbum
  date published: 1985-06-30
album: Wings in the Sky
  type: MusicAlbum
  date published: 1986-01-01
album: Wenn Die Kraniche Ziehen - When the Cranes Migrate
  type: MusicAlbum
  date published: 1987-01-01
album: Euphonia
  type: MusicAlbum
  date published: 1988-01-01
album: Music-Pool
  type: MusicAlbum
  date published: 1989-01-01
album: Arabian Affair
  type: MusicAlbum
  date published: 1991-01-01
album: Texture
album: Spanish Affair
album: African Affair
album: Balkan Affair
album: Indonesian Affair
album: The Middle East
album: Pictures from Etruria (Vintage Electronic & Production Music)
album: Synthesis - Claude Larson
album: High-Tech - Claude Larson
track: Murrumbidgee River
track: Poltergeist

Texture
type: MusicAlbum
date published: 1991-03-01
track: Morning Call
  type: MusicRecording
  duration: PT8M3S
  duration ms: 483133
  explicit: false
  by artist: Claude Larson
  in album: Texture
    type: MusicAlbum
    date published: 1991-03-01
  genre: krautrock
  genre: new age
  isrc code: DEC179100200
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T11:22:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9db83c548edd83d63a5fcf39d3d969db9b713a68337bdd04085f851e468828e9
  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/DEC179100200
  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 0x9db83c548edd83d63a5fcf39d3d969db9b713a68337bdd04085f851e468828e9. 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/DEC179100200.
    date published: 2026-07-03T19:59:51Z
  audio: Morning Call
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 80.984
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.455
    additional property: Energy
      type: PropertyValue
      value: 0.151
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.902
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.892
    additional property: Liveness
      type: PropertyValue
      value: 0.087
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.038
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.173
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Spanish Affair
type: MusicAlbum
date published: 1992-03-01

African Affair
type: MusicAlbum
date published: 1993-01-01

Balkan Affair
type: MusicAlbum
date published: 1993-01-01

Indonesian Affair
type: MusicAlbum
date published: 1993-01-01

The Middle East
type: MusicAlbum
date published: 1994-02-01

Pictures from Etruria (Vintage Electronic & Production Music)
type: MusicAlbum
date published: 2014-11-04

Synthesis - Claude Larson
type: MusicAlbum
date published: 2024-05-23

High-Tech - Claude Larson
type: MusicAlbum
date published: 2024-05-23

Murrumbidgee River
type: MusicRecording
duration: PT7M43S
duration ms: 463307
explicit: false
by artist: Claude Larson
in album: French Riviera
  type: MusicAlbum
  date published: 2020-02-28
isrc code: QMBZ91989983
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T11:18:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x486bfadb8194293a0061311e76f4d81dd8ff73e512105d98a9a3dc4d5980ca01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91989983
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x486bfadb8194293a0061311e76f4d81dd8ff73e512105d98a9a3dc4d5980ca01. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMBZ91989983.
  date published: 2026-07-02T03:55:08Z
audio: Murrumbidgee River
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.197
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.274
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.794
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.757
  additional property: Liveness
    type: PropertyValue
    value: 0.463
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.288
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Poltergeist
type: MusicRecording
duration: PT5M11S
duration ms: 311720
explicit: false
by artist: Claude Larson
in album: French Riviera
  type: MusicAlbum
  date published: 2020-02-28
isrc code: QMBZ91989984
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:20:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b0d5833551f66ff896742439761d7736684e8b01acd558225120ed38558dd65
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91989984
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
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 0x9b0d5833551f66ff896742439761d7736684e8b01acd558225120ed38558dd65. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QMBZ91989984.
  date published: 2026-07-30T08:30:10Z
audio: Poltergeist
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.978
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.51
  additional property: Energy
    type: PropertyValue
    value: 0.468
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.723
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.157
  additional property: Liveness
    type: PropertyValue
    value: 0.054
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.481
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.015
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor