Natascha Del Vacchio
type: MusicGroup
popularity: 9
followers: 188
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb015abf2b8090281080ca92b74afefb2101d3a7a667cf2fc5ec19ed908c2d306
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c82c7b65-5258-42f5-824e-089841cfba00.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c82c7b65-5258-42f5-824e-089841cfba00.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c82c7b65-5258-42f5-824e-089841cfba00
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb015abf2b8090281080ca92b74afefb2101d3a7a667cf2fc5ec19ed908c2d306","name":"Natascha Del Vacchio","registered_at":"2026-06-20T22:03:17Z","symbol":"NIM1728182","token_address":"0x9155cad5bfa6a17f1a49f9bd3562be908dfcf4ed","type":"artist","uuid":"c82c7b65-5258-42f5-824e-089841cfba00"}
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 0xb015abf2b8090281080ca92b74afefb2101d3a7a667cf2fc5ec19ed908c2d306. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c82c7b65-5258-42f5-824e-089841cfba00.json and https://artists.proofprofile.net/proofs/artist/c82c7b65-5258-42f5-824e-089841cfba00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0xb015abf2b8090281080ca92b74afefb2101d3a7a667cf2fc5ec19ed908c2d306","name":"Natascha Del Vacchio","registered_at":"2026-06-20T22:03:17Z","symbol":"NIM1728182","token_address":"0x9155cad5bfa6a17f1a49f9bd3562be908dfcf4ed","type":"artist","uuid":"c82c7b65-5258-42f5-824e-089841cfba00"}
album: Invisible
  type: MusicAlbum
  date published: 2020-03-04
album: Covers to Sleep
  type: MusicAlbum
  date published: 2020-03-22
album: disturbia
  type: MusicAlbum
  date published: 2020-09-28
album: <3
  type: MusicAlbum
  date published: 2020-12-11
album: vulnerable (Dave Luxe Remix)
  type: MusicAlbum
  date published: 2021-07-20
album: bye
  type: MusicAlbum
  date published: 2023-12-29
album: passenger (english version)
  type: MusicAlbum
  date published: 2024-07-04
album: we can't be friends
  type: MusicAlbum
  date published: 2024-11-17
  track: we can't be friends
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235443
    explicit: false
    by artist: Natascha Del Vacchio
    in album: we can't be friends
      type: MusicAlbum
      date published: 2024-11-17
    isrc code: QZZ792409202
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T09:22:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf8a6c74c40015828ec47a7816e7024be457401543320f4523d62ce22719535a7
    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/QZZ792409202
    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 0xf8a6c74c40015828ec47a7816e7024be457401543320f4523d62ce22719535a7. 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/QZZ792409202.
      date published: 2026-07-03T19:59:51Z
    audio: we can't be friends
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.575
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.331
      additional property: Energy
        type: PropertyValue
        value: 0.4
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.697
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.405
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.572
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: it's all so incredibly loud
  type: MusicAlbum
  date published: 2024-12-22
album: touch it
  type: MusicAlbum
  date published: 2025-03-24