Ro Fonseca
type: MusicGroup
genre: brazilian jazz
popularity: 2
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c93b603240da185091ebf7fb81f2bad2577579ee75c0d7f53301e1f33a3b327
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb4f19fe-52ac-477e-a442-413baf4141f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb4f19fe-52ac-477e-a442-413baf4141f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb4f19fe-52ac-477e-a442-413baf4141f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3c93b603240da185091ebf7fb81f2bad2577579ee75c0d7f53301e1f33a3b327","name":"Ro Fonseca","registered_at":"2026-06-21T17:04:44Z","symbol":"NIM1981111","token_address":"0x1b863f64783ea7f09b68a5573a386b6ef34e2f2b","type":"artist","uuid":"fb4f19fe-52ac-477e-a442-413baf4141f4"}
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 0x3c93b603240da185091ebf7fb81f2bad2577579ee75c0d7f53301e1f33a3b327. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb4f19fe-52ac-477e-a442-413baf4141f4.json and https://artists.proofprofile.net/proofs/artist/fb4f19fe-52ac-477e-a442-413baf4141f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x3c93b603240da185091ebf7fb81f2bad2577579ee75c0d7f53301e1f33a3b327","name":"Ro Fonseca","registered_at":"2026-06-21T17:04:44Z","symbol":"NIM1981111","token_address":"0x1b863f64783ea7f09b68a5573a386b6ef34e2f2b","type":"artist","uuid":"fb4f19fe-52ac-477e-a442-413baf4141f4"}
album: Danae
  type: MusicAlbum
  date published: 2019-05-31
  track: Peixe Pequeno
album: Atento
  type: MusicAlbum
  date published: 2006-11-30
album: Le doute (Remix)
  type: MusicAlbum
  date published: 2023-09-29
album: Mergulho
  type: MusicAlbum
  date published: 2022-02-11
album: Nau
  type: MusicAlbum
  date published: 2021-08-20
album: Barbarie
  type: MusicAlbum
  date published: 2021-03-19
album: Tratore Basics 4: Brazilian Songs without Words
  type: MusicAlbum
  date published: 2007-01-16
album: Aqui
  type: MusicAlbum
  date published: 2020-07-31
album: antologia_50_parceria
  type: MusicAlbum
  date published: 2021-10-31
album: Júpiter e Maysa
  type: MusicAlbum
  date published: 2021-11-19
album: antologia_50_solo
  type: MusicAlbum
  date published: 2021-12-31
album: Mediterrâneo
  type: MusicAlbum
  date published: 2021-05-19
album: Votivo
  type: MusicAlbum
  date published: 2023-03-24
album: Veloce
  type: MusicAlbum
  date published: 2020-03-20
album: Rio e Mar
  type: MusicAlbum
  date published: 2023-12-01
album: Pacífica
  type: MusicAlbum
  date published: 2023-03-31
album: Traineira
  type: MusicAlbum
  date published: 2020-10-30
album: Construção
  type: MusicAlbum
  date published: 2019-10-04

Peixe Pequeno
type: MusicRecording
duration: PT6M18S
duration ms: 378053
explicit: false
by artist: Beto Braga
by artist: Ro Fonseca
by artist: Sidiel Vieira
by artist: Ricardo Mosca
by artist: Salomão Soares
in album: Danae
  type: MusicAlbum
  date published: 2019-05-31
isrc code: BRBBM1900002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:55:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6740d5ac8645981d354fa78eaed15ceaa8f1b0b3c9954cea8a2a9c6a3ea9c31
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957039
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957039
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBBM1900002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T12:58:18+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: 957039
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T12:58:18+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 0xc6740d5ac8645981d354fa78eaed15ceaa8f1b0b3c9954cea8a2a9c6a3ea9c31. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BRBBM1900002.
  date published: 2026-07-07T13:25:45Z
audio: Peixe Pequeno
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.052
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.519
  additional property: Energy
    type: PropertyValue
    value: 0.332
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.82
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.801
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.418
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.686
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor