Kvlt (IT)
type: MusicGroup
genre: acid techno
genre: hard techno
album: Acid Demon EP
  type: MusicAlbum
  date published: 2024-01-23
  track: May Day
    type: MusicRecording
    duration: PT6M21S
    duration ms: 381399
    explicit: false
    by artist: Kvlt (IT)
    in album: Acid Demon EP
      type: MusicAlbum
      date published: 2024-01-23
    genre: acid techno
    genre: hard techno
    isrc code: NLCK42400324
    additional property: CopyrightID
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    additional property: CopyrightRegisteredAt
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    additional property: OTSBitcoinBlock
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      value: 960266
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960266
    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK42400324
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-30T14:44:50Z
    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 0xb9354d9d2bb246297a2ea17faccb7e4bf86caf2eaa07ed74659771267af8d488. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK42400324 — a six-check JSON result.
      date published: 2026-07-30T14:44:50Z
    audio: May Day
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 165.591
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.464
      additional property: Energy
        type: PropertyValue
        value: 0.999
      additional property: Speechiness
        type: PropertyValue
        value: 0.219
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.709
      additional property: Liveness
        type: PropertyValue
        value: 0.399
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.719
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Nobody likes
    type: MusicRecording
    duration: PT5M8S
    duration ms: 308732
    explicit: false
    by artist: Kvlt (IT)
    in album: Acid Demon EP
      type: MusicAlbum
      date published: 2024-01-23
    genre: acid techno
    genre: hard techno
    isrc code: NLCK42400326
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T14:21:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3ba38d74dfe917db29be0712b73cce2ab42d48a04ed45e8a8d9d9071d6d7e0ec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK42400326
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 0x3ba38d74dfe917db29be0712b73cce2ab42d48a04ed45e8a8d9d9071d6d7e0ec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK42400326 — a six-check JSON result.
      date published: 2026-07-08T03:20:19Z
    audio: Nobody likes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 162.894
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.552
      additional property: Energy
        type: PropertyValue
        value: 0.973
      additional property: Speechiness
        type: PropertyValue
        value: 0.13
      additional property: Acousticness
        type: PropertyValue
        value: 0.012
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.838
      additional property: Liveness
        type: PropertyValue
        value: 0.089
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.38
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.903
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor