Matteo Cappella
type: MusicGroup
popularity: 3
followers: 635
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88b210e0177de5add305a1a560e1509614d841747376aab35023bcde57b46e76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cca895e0-e16a-4549-94ef-25d30105169e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cca895e0-e16a-4549-94ef-25d30105169e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cca895e0-e16a-4549-94ef-25d30105169e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x88b210e0177de5add305a1a560e1509614d841747376aab35023bcde57b46e76","name":"Matteo Cappella","registered_at":"2026-06-20T23:32:31Z","symbol":"NIM1748298","token_address":"0xf119950d2e3770b92447d3bb1272de2f4119dc0f","type":"artist","uuid":"cca895e0-e16a-4549-94ef-25d30105169e"}
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 0x88b210e0177de5add305a1a560e1509614d841747376aab35023bcde57b46e76. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cca895e0-e16a-4549-94ef-25d30105169e.json and https://artists.proofprofile.net/proofs/artist/cca895e0-e16a-4549-94ef-25d30105169e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x88b210e0177de5add305a1a560e1509614d841747376aab35023bcde57b46e76","name":"Matteo Cappella","registered_at":"2026-06-20T23:32:31Z","symbol":"NIM1748298","token_address":"0xf119950d2e3770b92447d3bb1272de2f4119dc0f","type":"artist","uuid":"cca895e0-e16a-4549-94ef-25d30105169e"}
album: Metropolia
  type: MusicAlbum
  date published: 2019-01-12
album: Riflessi
  type: MusicAlbum
  date published: 2021-04-28
album: Riflessi
  type: MusicAlbum
  date published: 2021-05-14
album: Introdacqua
  type: MusicAlbum
  date published: 2021-06-18
album: Introdacqua
  type: MusicAlbum
  date published: 2021-06-18
album: La Venere di Milo (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2024-08-02
  track: La Venere di Milo
    type: MusicRecording
    duration: PT1M29S
    duration ms: 89250
    explicit: false
    by artist: Matteo Cappella
    in album: La Venere di Milo (Original Motion Picture Soundtrack)
      type: MusicAlbum
      date published: 2024-08-02
    isrc code: ITTQ32401066
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T08:11:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf3714fb765d83874fe5f26536f02403263478baf0bf160453656b814e89cc15a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958520
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958520
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITTQ32401066
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T08:19:09Z
    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 0xf3714fb765d83874fe5f26536f02403263478baf0bf160453656b814e89cc15a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITTQ32401066 — a six-check JSON result.
      date published: 2026-07-18T08:19:09Z
    audio: La Venere di Milo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.226
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.686
      additional property: Energy
        type: PropertyValue
        value: 0.209
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.957
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.954
      additional property: Liveness
        type: PropertyValue
        value: 0.212
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.197
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.97
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Frizzante
  type: MusicAlbum
  date published: 2025-07-11
  track: Frizzante
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165538
    explicit: false
    by artist: Matteo Cappella
    in album: Frizzante
      type: MusicAlbum
      date published: 2025-07-11
    isrc code: ITTQ32501073
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T00:31:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1172650c22998b53b0bb89d2f88a428f2018e480a567d087e0f33523ca9ae879
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957782
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957782
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITTQ32501073
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T00:52:48Z
    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 0x1172650c22998b53b0bb89d2f88a428f2018e480a567d087e0f33523ca9ae879. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITTQ32501073 — a six-check JSON result.
      date published: 2026-07-13T00:52:48Z
    audio: Frizzante
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.356
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.489
      additional property: Energy
        type: PropertyValue
        value: 0.727
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Pietra di sole

Speechiness
type: PropertyValue
value: 0.151

Acousticness
type: PropertyValue
value: 0.06

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.109

Valence (Positivity)
type: PropertyValue
value: 0.492

Loudness (dB)
type: PropertyValue
value: -4.741

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Pietra di sole
type: MusicAlbum
date published: 2025-11-07