Retrato Brasileiro
type: MusicGroup
genre: samba
popularity: 17
followers: 388
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953636
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953636
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37ccc1ff-c3d5-45ea-bcc7-276a6c84810a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37ccc1ff-c3d5-45ea-bcc7-276a6c84810a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37ccc1ff-c3d5-45ea-bcc7-276a6c84810a
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b3603315930339cef6d7113ef40a0592c7dc7e8dc0c7b01a39f36fadd1e1552","name":"Retrato Brasileiro","registered_at":"2026-06-14T10:20:16Z","symbol":"NIM0422439","token_address":"0x9dd7f7cdfa9de6605168235e448fe40c77cae992","type":"artist","uuid":"37ccc1ff-c3d5-45ea-bcc7-276a6c84810a"}
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 0x9b3603315930339cef6d7113ef40a0592c7dc7e8dc0c7b01a39f36fadd1e1552. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37ccc1ff-c3d5-45ea-bcc7-276a6c84810a.json and https://artists.proofprofile.net/proofs/artist/37ccc1ff-c3d5-45ea-bcc7-276a6c84810a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x9b3603315930339cef6d7113ef40a0592c7dc7e8dc0c7b01a39f36fadd1e1552","name":"Retrato Brasileiro","registered_at":"2026-06-14T10:20:16Z","symbol":"NIM0422439","token_address":"0x9dd7f7cdfa9de6605168235e448fe40c77cae992","type":"artist","uuid":"37ccc1ff-c3d5-45ea-bcc7-276a6c84810a"}
album: Suítes Brasileiras, Vol. 1
  type: MusicAlbum
  date published: 2019-02-08
album: Bolero-Choro
  type: MusicAlbum
  date published: 2022-02-18
album: Confluências - ao Vivo
  type: MusicAlbum
  date published: 2022-03-04
album: Chorinho em Inhambupe
  type: MusicAlbum
  date published: 2024-02-19
album: Confluências
  type: MusicAlbum
  date published: 2024-02-23
track: Com Que Roupa

Com Que Roupa
type: MusicRecording
duration: PT3M20S
duration ms: 200826
explicit: false
by artist: Jacque Falcheti
by artist: Retrato Brasileiro
by artist: Verônica Ferriani
in album: Com Que Roupa
  type: MusicAlbum
  date published: 2021-11-26
isrc code: BCJQZ2100004
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCJQZ2100004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06+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: 953515
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:53:06+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 0x724e48d6328b11f34b7a856934f8268611979ffd43348a595f726692fa5aed83. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCJQZ2100004.
  date published: 2026-06-13T15:41:10Z
audio: Com Que Roupa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.586
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.599
  additional property: Energy
    type: PropertyValue
    value: 0.493
  additional property: Speechiness
    type: PropertyValue
    value: 0.092
  additional property: Acousticness
    type: PropertyValue
    value: 0.217
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.68
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.051
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major