U Calabrisi
type: MusicGroup
popularity: 24
followers: 1061
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdd9bcbbb1cfd7b334ae6379a51b7977227063498c7dd2a641655bcedf8025254
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b7d53b6-c6c5-416a-a120-df653d02430c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b7d53b6-c6c5-416a-a120-df653d02430c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5b7d53b6-c6c5-416a-a120-df653d02430c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdd9bcbbb1cfd7b334ae6379a51b7977227063498c7dd2a641655bcedf8025254","name":"U Calabrisi","registered_at":"2026-06-11T21:33:45Z","symbol":"NIM0118407","token_address":"0xbf24945d93f5a6141bae85986751f5a4001c919b","type":"artist","uuid":"5b7d53b6-c6c5-416a-a120-df653d02430c"}
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 0xdd9bcbbb1cfd7b334ae6379a51b7977227063498c7dd2a641655bcedf8025254. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b7d53b6-c6c5-416a-a120-df653d02430c.json and https://artists.proofprofile.net/proofs/artist/5b7d53b6-c6c5-416a-a120-df653d02430c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xdd9bcbbb1cfd7b334ae6379a51b7977227063498c7dd2a641655bcedf8025254","name":"U Calabrisi","registered_at":"2026-06-11T21:33:45Z","symbol":"NIM0118407","token_address":"0xbf24945d93f5a6141bae85986751f5a4001c919b","type":"artist","uuid":"5b7d53b6-c6c5-416a-a120-df653d02430c"}
album: Parlano tutti
  type: MusicAlbum
  date published: 2025-02-17
album: Lime e pepe rosa
  type: MusicAlbum
  date published: 2025-03-28
album: Romantica
  type: MusicAlbum
  date published: 2025-05-09
album: Voglio ballare con te
  type: MusicAlbum
  date published: 2025-09-16
  track: Voglio ballare con te
    type: MusicRecording
    duration: PT2M29S
    duration ms: 149165
    explicit: false
    by artist: U Calabrisi
    in album: Voglio ballare con te
      type: MusicAlbum
      date published: 2025-09-16
    isrc code: QZZ7V2503192
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T16:59:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x078efd0e3287e887d672329b9092a0d7865f174d46265b8ebd3db114b11fcc65
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958448
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958448
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7V2503192
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:49:21Z
    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 0x078efd0e3287e887d672329b9092a0d7865f174d46265b8ebd3db114b11fcc65. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZZ7V2503192.
      date published: 2026-07-17T19:49:21Z
    audio: Voglio ballare con te
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.961
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.802
      additional property: Energy
        type: PropertyValue
        value: 0.642
      additional property: Speechiness
        type: PropertyValue
        value: 0.287
      additional property: Acousticness
        type: PropertyValue
        value: 0.124
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.278
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.485
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.743
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major