Francesco Toma
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7b334881ed48619391bb817d99691efb19dceb2e4c63e10a9e4d4ad7d946d5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14cfcccd-a167-43a6-90cf-36ac0fd07142.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14cfcccd-a167-43a6-90cf-36ac0fd07142.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/14cfcccd-a167-43a6-90cf-36ac0fd07142
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7b334881ed48619391bb817d99691efb19dceb2e4c63e10a9e4d4ad7d946d5d","name":"Francesco Toma","registered_at":"2026-06-15T20:40:40Z","symbol":"NIM0825815","token_address":"0x450e9d3612f9f9f248e5b2ad5fb972f107edf8c3","type":"artist","uuid":"14cfcccd-a167-43a6-90cf-36ac0fd07142"}
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 0xf7b334881ed48619391bb817d99691efb19dceb2e4c63e10a9e4d4ad7d946d5d. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14cfcccd-a167-43a6-90cf-36ac0fd07142.json and https://artists.proofprofile.net/proofs/artist/14cfcccd-a167-43a6-90cf-36ac0fd07142.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xf7b334881ed48619391bb817d99691efb19dceb2e4c63e10a9e4d4ad7d946d5d","name":"Francesco Toma","registered_at":"2026-06-15T20:40:40Z","symbol":"NIM0825815","token_address":"0x450e9d3612f9f9f248e5b2ad5fb972f107edf8c3","type":"artist","uuid":"14cfcccd-a167-43a6-90cf-36ac0fd07142"}
track: Puccini: Turandot, Act 1: "Figlio, che fai?" (Timur, Calaf, Liù, Il principe di Persia, Coro)

Puccini: Turandot, Act 1: "Figlio, che fai?" (Timur, Calaf, Liù, Il principe di Persia, Coro)
type: MusicRecording
duration: PT1M40S
duration ms: 100360
explicit: false
by artist: Giacomo Puccini
by artist: Antonio Pappano
by artist: Coro dell'Accademia Nazionale Di Santa Cecilia
by artist: Ermonela Jaho
by artist: Francesco Toma
by artist: Jonas Kaufmann
by artist: Michele Pertusi
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Puccini: Turandot
  type: MusicAlbum
  date published: 2023-03-10
isrc code: GBAYC2202623
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T18:55:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e10b27cdef132230ae15252bacdc4dfc78ff50f7d42ce77ff08428826d61e4d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2202623
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12+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: 956312
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T05:09:12+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 0x7e10b27cdef132230ae15252bacdc4dfc78ff50f7d42ce77ff08428826d61e4d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAYC2202623.
  date published: 2026-07-02T11:34:59Z
audio: Puccini: Turandot, Act 1: "Figlio, che fai?" (Timur, Calaf, Liù, Il principe di Persia, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.879
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.324
  additional property: Energy
    type: PropertyValue
    value: 0.186
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.02
  additional property: Liveness
    type: PropertyValue
    value: 0.676
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.334
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.844
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor