Kassett
type: MusicGroup
popularity: 9
followers: 562
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa03e970a3a8c18f2161c2efd56394294a9e356a6b3671389e478ebdb9741d4bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/603b309b-22a8-4342-a8a5-cae3852f7dda.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/603b309b-22a8-4342-a8a5-cae3852f7dda.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/603b309b-22a8-4342-a8a5-cae3852f7dda
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xa03e970a3a8c18f2161c2efd56394294a9e356a6b3671389e478ebdb9741d4bc. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/603b309b-22a8-4342-a8a5-cae3852f7dda.json and https://artists.proofprofile.net/proofs/artist/603b309b-22a8-4342-a8a5-cae3852f7dda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Entra
  type: MusicAlbum
  date published: 2022-03-17
album: Coleccionista
  type: MusicAlbum
  date published: 2022-03-20
album: Rutina
  type: MusicAlbum
  date published: 2022-03-21
album: caminando high
  type: MusicAlbum
  date published: 2022-03-22
album: Cavernas
  type: MusicAlbum
  date published: 2022-03-23
album: Superviviente
  type: MusicAlbum
  date published: 2022-03-24
album: Habitos
  type: MusicAlbum
  date published: 2022-03-25
album: A lo bronson
  type: MusicAlbum
  date published: 2022-03-27
album: Somos de la Calle
  type: MusicAlbum
  date published: 2022-05-27
album: Ahora
  type: MusicAlbum
  date published: 2022-12-23
  track: Ahora
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218928
    explicit: false
    by artist: Kassett
    in album: Ahora
      type: MusicAlbum
      date published: 2022-12-23
    isrc code: QZTB62201243
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T22:09:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbdd22fd2c2153a94ed328701a808fcea77172f3b463293c2944d33312ee90d18
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958074
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958074
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62201243
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T22:45:25Z
    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 0xbdd22fd2c2153a94ed328701a808fcea77172f3b463293c2944d33312ee90d18. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZTB62201243.
      date published: 2026-07-14T22:45:25Z
    audio: Ahora
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.81
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.432
      additional property: Energy
        type: PropertyValue
        value: 0.379
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.655
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.088
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.404
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.816
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Mala Vida
  type: MusicAlbum
  date published: 2023-11-30
album: Subiendo mi Ki
  type: MusicAlbum
  date published: 2024-01-12
album: Frankfurt
  type: MusicAlbum
  date published: 2024-03-31
album: Somos del Bloque
  type: MusicAlbum
  date published: 2024-12-06
album: Por Money
  type: MusicAlbum
  date published: 2025-07-06
album: Aquí Estamos
  type: MusicAlbum
  date published: 2025-09-05