Laszlo
type: MusicGroup
popularity: 2
followers: 78
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae6b3a8ebd2010af644dbb7c2eeb354403ab0697edc5b356a605474ea34caec4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f37c9f89-9b59-48ba-9342-d0e163a95730.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f37c9f89-9b59-48ba-9342-d0e163a95730.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f37c9f89-9b59-48ba-9342-d0e163a95730
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
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 0xae6b3a8ebd2010af644dbb7c2eeb354403ab0697edc5b356a605474ea34caec4. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f37c9f89-9b59-48ba-9342-d0e163a95730.json and https://artists.proofprofile.net/proofs/artist/f37c9f89-9b59-48ba-9342-d0e163a95730.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
album: Helene
  type: MusicAlbum
  date published: 2023-04-30
  track: Helene
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190588
    explicit: true
    by artist: Laszlo
    in album: Helene
      type: MusicAlbum
      date published: 2023-04-30
    isrc code: DEZC62342631
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:55:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe6c82f790878d53f60491c4e5993c6693f38aff0eb45b151aed15181b2c7edab
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62342631
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:16:32Z
    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 0xe6c82f790878d53f60491c4e5993c6693f38aff0eb45b151aed15181b2c7edab. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZC62342631.
      date published: 2026-07-06T07:16:32Z
    audio: Helene
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.013
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.712
      additional property: Energy
        type: PropertyValue
        value: 0.315
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.123
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.14
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.23
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.343
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Sybille
  type: MusicAlbum
  date published: 2024-02-01
album: Bier im Bett
  type: MusicAlbum
  date published: 2024-08-31
album: Roberts Poloch
  type: MusicAlbum
  date published: 2025-02-09