Tom Lessner
type: MusicGroup
popularity: 4
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1686c7d3a9764b29782d8663ae55a2a9a461a145a1b60211122b0298bbb0e9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a128c337-3d81-4422-ac40-6e7b4bef58df.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a128c337-3d81-4422-ac40-6e7b4bef58df.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a128c337-3d81-4422-ac40-6e7b4bef58df
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc1686c7d3a9764b29782d8663ae55a2a9a461a145a1b60211122b0298bbb0e9e","name":"Tom Lessner","registered_at":"2026-06-20T05:47:09Z","symbol":"NIM1530468","token_address":"0x0a37f59a229bea4018bb9a715cac3d29ac66f773","type":"artist","uuid":"a128c337-3d81-4422-ac40-6e7b4bef58df"}
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 0xc1686c7d3a9764b29782d8663ae55a2a9a461a145a1b60211122b0298bbb0e9e. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a128c337-3d81-4422-ac40-6e7b4bef58df.json and https://artists.proofprofile.net/proofs/artist/a128c337-3d81-4422-ac40-6e7b4bef58df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xc1686c7d3a9764b29782d8663ae55a2a9a461a145a1b60211122b0298bbb0e9e","name":"Tom Lessner","registered_at":"2026-06-20T05:47:09Z","symbol":"NIM1530468","token_address":"0x0a37f59a229bea4018bb9a715cac3d29ac66f773","type":"artist","uuid":"a128c337-3d81-4422-ac40-6e7b4bef58df"}
album: For Lola
  type: MusicAlbum
  date published: 2020-04-20
  track: For Lola
    type: MusicRecording
    duration: PT4M31S
    duration ms: 271720
    explicit: false
    by artist: Tom Lessner
    in album: For Lola
      type: MusicAlbum
      date published: 2020-04-20
    isrc code: DEL211903761
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe4a606d83acd42818c2eeb23c74b36bd7bfcd11d13bf88e269b718fd1c52f018
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL211903761
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:49:48Z
    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 0xe4a606d83acd42818c2eeb23c74b36bd7bfcd11d13bf88e269b718fd1c52f018. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DEL211903761.
      date published: 2026-07-19T17:49:48Z
    audio: For Lola
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.073
      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: 0.634
      additional property: Energy
        type: PropertyValue
        value: 0.716
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.488
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.194
      additional property: Liveness
        type: PropertyValue
        value: 0.172
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.834
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.138
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Cyclus
  type: MusicAlbum
  date published: 2020-04-20
  track: Cyclus
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168053
    explicit: false
    by artist: Tom Lessner
    in album: Cyclus
      type: MusicAlbum
      date published: 2020-04-20
    isrc code: DEL211903754
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T11:34:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8d61f30c327b953367dddd4743aa22e94e50434c769bda1f769c3a25909e6383
    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/DEL211903754
    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 0x8d61f30c327b953367dddd4743aa22e94e50434c769bda1f769c3a25909e6383. 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/DEL211903754.
      date published: 2026-07-05T10:01:46Z
    audio: Cyclus
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.063
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.685
      additional property: Energy
        type: PropertyValue
        value: 0.804
      additional property: Speechiness
        type: PropertyValue
        value: 0.081
      additional property: Acousticness
        type: PropertyValue
        value: 0.176
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.037
      additional property: Liveness
        type: PropertyValue
        value: 0.517
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.685
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -11.289

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major