Fabrizio Sferra
type: MusicGroup
popularity: 2
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1cfb69a95724ada757b9ecdac3ff22c46626fc2ddcbb9e67197fb6bfa5cb800
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2c1f420-cd32-4863-aa1f-6732969b9016.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2c1f420-cd32-4863-aa1f-6732969b9016.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f2c1f420-cd32-4863-aa1f-6732969b9016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb1cfb69a95724ada757b9ecdac3ff22c46626fc2ddcbb9e67197fb6bfa5cb800","name":"Fabrizio Sferra","registered_at":"2026-06-21T13:44:55Z","symbol":"NIM1938473","token_address":"0x24c79a2cd6dfdaf3808b41f03b51d621d6799a01","type":"artist","uuid":"f2c1f420-cd32-4863-aa1f-6732969b9016"}
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 0xb1cfb69a95724ada757b9ecdac3ff22c46626fc2ddcbb9e67197fb6bfa5cb800. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2c1f420-cd32-4863-aa1f-6732969b9016.json and https://artists.proofprofile.net/proofs/artist/f2c1f420-cd32-4863-aa1f-6732969b9016.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xb1cfb69a95724ada757b9ecdac3ff22c46626fc2ddcbb9e67197fb6bfa5cb800","name":"Fabrizio Sferra","registered_at":"2026-06-21T13:44:55Z","symbol":"NIM1938473","token_address":"0x24c79a2cd6dfdaf3808b41f03b51d621d6799a01","type":"artist","uuid":"f2c1f420-cd32-4863-aa1f-6732969b9016"}
album: Jazz Masters
  type: MusicAlbum
  date published: 2023-11-30
album: The Italian Jazz Job
  type: MusicAlbum
  date published: 2012-01-01
album: Grace in Town
  type: MusicAlbum
  date published: 2018-05-25
album: The Hidden Side
  type: MusicAlbum
  date published: 2016-03-11
album: Small Changes
  type: MusicAlbum
  date published: 2015-10-13
album: Frames of Crimson
  type: MusicAlbum
  date published: 2017-04-07
album: Leapin'in
  type: MusicAlbum
  date published: 2015-10-13
album: Quando c'era Berlinguer (Colonna sonora originale del film di Walter Veltroni)
  type: MusicAlbum
  date published: 2014-05-28
  track: Anna e i suoi fratelli
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270550
    explicit: false
    by artist: Danilo Rea
    in album: Quando c'era Berlinguer (Colonna sonora originale del film di Walter Veltroni)
      type: MusicAlbum
      date published: 2014-05-28
    isrc code: IT7151405281
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T18:19:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5029b877a0f2581bbeda39bfe43f9ef5bf597b8cfbb049fd13e34dfc4bdf25ca
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7151405281
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    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 0x5029b877a0f2581bbeda39bfe43f9ef5bf597b8cfbb049fd13e34dfc4bdf25ca. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IT7151405281.
      date published: 2026-07-08T03:22:41Z
    audio: Anna e i suoi fratelli
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.347
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.259
      additional property: Energy
        type: PropertyValue
        value: 0.12
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.961
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.924
      additional property: Liveness
        type: PropertyValue
        value: 0.14
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.071
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.969
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Little Soul Song
album: 3 of Visions
  type: MusicAlbum
  date published: 2014-05-25
album: Synthetismos
  type: MusicAlbum
  date published: 1989-08-31
album: Sound Investigations
  type: MusicAlbum
  date published: 1988-08-31
album: Il bagno turco
  type: MusicAlbum
  date published: 2011-09-05

Little Soul Song
type: MusicRecording
duration: PT5M31S
duration ms: 331311
explicit: false
by artist: Danilo Rea
by artist: Enzo Pietropaoli
by artist: Fabrizio Sferra
in album: Quando c'era Berlinguer (Colonna sonora originale del film di Walter Veltroni)
  type: MusicAlbum
  date published: 2014-05-28
isrc code: IT7151405284
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:00:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5cfc904da3eed0e83e1c0e25b3f5be7793b6e3983bb7fb319abe1e2572581c5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT7151405284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfc904da3eed0e83e1c0e25b3f5be7793b6e3983bb7fb319abe1e2572581c5a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IT7151405284.
  date published: 2026-07-08T08:56:20Z
audio: Little Soul Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.619
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.469
  additional property: Energy
    type: PropertyValue
    value: 0.4
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.757
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.868
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.55
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.613
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major