derduda
type: MusicGroup
genre: tekno
popularity: 27
followers: 1618
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9d0fe2840870f79c75fb0a08d30549c90502e159ca5f6887a3ac319a83027cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953423
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d37de69a-b1ba-4338-9ad1-c32c038f045e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d37de69a-b1ba-4338-9ad1-c32c038f045e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d37de69a-b1ba-4338-9ad1-c32c038f045e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
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 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 0xe9d0fe2840870f79c75fb0a08d30549c90502e159ca5f6887a3ac319a83027cc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d37de69a-b1ba-4338-9ad1-c32c038f045e.json and https://artists.proofprofile.net/proofs/artist/d37de69a-b1ba-4338-9ad1-c32c038f045e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: Sommerwind (Remix)
  type: MusicAlbum
  date published: 2024-07-23
album: Sommerlove
  type: MusicAlbum
  date published: 2024-08-13
album: Liebe auf der Rückbank
  type: MusicAlbum
  date published: 2024-08-19
album: Mamacita
  type: MusicAlbum
  date published: 2024-08-23
album: Sie bleibt
  type: MusicAlbum
  date published: 2024-09-06
album: Dessous
  type: MusicAlbum
  date published: 2024-09-13
  track: Dessous
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226400
    explicit: false
    by artist: derduda
    in album: Dessous
      type: MusicAlbum
      date published: 2024-09-13
    genre: tekno
    isrc code: QZTB82441632
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T19:17:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7b7c02030470eb3b2d7a0260359fe5f769527af1c86f8c0b22a5e07f7595d783
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958447
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958447
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82441632
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:47:19Z
    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 0x7b7c02030470eb3b2d7a0260359fe5f769527af1c86f8c0b22a5e07f7595d783. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82441632.
      date published: 2026-07-17T19:47:19Z
    audio: Dessous
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.048
      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: 0.875
      additional property: Energy
        type: PropertyValue
        value: 0.284
      additional property: Speechiness
        type: PropertyValue
        value: 0.227
      additional property: Acousticness
        type: PropertyValue
        value: 0.156
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.64
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.478
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.723
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Tattoo
  type: MusicAlbum
  date published: 2024-09-20
album: Love Story
  type: MusicAlbum
  date published: 2024-10-11
album: Sunny
  type: MusicAlbum
  date published: 2024-12-20
album: Mamacita 2.0
  type: MusicAlbum
  date published: 2024-12-27
album: Ohne dich
  type: MusicAlbum
  date published: 2025-01-03
album: Ohne dich (Hardtekk)
  type: MusicAlbum
  date published: 2025-01-10
album: High Life
  type: MusicAlbum
  date published: 2025-02-07
album: Sommerlove (Hardtekk)
  type: MusicAlbum
  date published: 2025-02-14
album: Späti
  type: MusicAlbum
  date published: 2025-02-21
album: Mehr Zeit
  type: MusicAlbum
  date published: 2025-03-07
album: Mehr Zeit (Hardtekk Fast Version)
  type: MusicAlbum
  date published: 2025-04-11
album: Mehr Zeit (Hardtekk)
  type: MusicAlbum
  date published: 2025-04-25
album: Copacabana Baby
  type: MusicAlbum
  date published: 2025-05-02
album: Bei mir
  type: MusicAlbum
  date published: 2025-05-30
album: Bei mir (Hardtekk)
  type: MusicAlbum
  date published: 2025-06-06
album: Ibuprofen (Hardtekk)
  type: MusicAlbum
  date published: 2025-07-11