Ana Preta
type: MusicGroup
genre: brazilian hip hop
genre: funk carioca
popularity: 9
followers: 427
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69b91db152461c940edbc53e9a8436bbf7d00ef22a56de475dc239fc49e7a753
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953999
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953999
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31bbd173-db8a-41d7-8a40-21fb6daa2f72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31bbd173-db8a-41d7-8a40-21fb6daa2f72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31bbd173-db8a-41d7-8a40-21fb6daa2f72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:20:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x69b91db152461c940edbc53e9a8436bbf7d00ef22a56de475dc239fc49e7a753","name":"Ana Preta","registered_at":"2026-06-16T06:54:07Z","symbol":"NIM0972276","token_address":"0xc9a4f6b77b7263ad0ab7df6cc4f34aaab1d60bb0","type":"artist","uuid":"31bbd173-db8a-41d7-8a40-21fb6daa2f72"}
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 0x69b91db152461c940edbc53e9a8436bbf7d00ef22a56de475dc239fc49e7a753. Chain 2 (Bitcoin): anchored in block 953999 (2026-06-16T20:20:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31bbd173-db8a-41d7-8a40-21fb6daa2f72.json and https://artists.proofprofile.net/proofs/artist/31bbd173-db8a-41d7-8a40-21fb6daa2f72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:20:58Z
  text: {"copyright_id":"0x69b91db152461c940edbc53e9a8436bbf7d00ef22a56de475dc239fc49e7a753","name":"Ana Preta","registered_at":"2026-06-16T06:54:07Z","symbol":"NIM0972276","token_address":"0xc9a4f6b77b7263ad0ab7df6cc4f34aaab1d60bb0","type":"artist","uuid":"31bbd173-db8a-41d7-8a40-21fb6daa2f72"}
album: Me Adora
  type: MusicAlbum
  date published: 2024-04-30
track: Stilo

Stilo
type: MusicRecording
duration: PT3M45S
duration ms: 225619
explicit: false
by artist: Thaíde
by artist: Rincon Sapiência
by artist: Marcelo D2
by artist: Ndee Naldinho
by artist: Don Cesão
by artist: Black Alien
by artist: Rapadura
by artist: Ana Preta
in album: Vamo Que Vamo Que o Som Não Pode Parar
  type: MusicAlbum
  date published: 2017-06-16
isrc code: BXA6P1700011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T02:28:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3ee44ae6133dec179537a9607d8c31f7ad3c12bf18aed7afc470c7c574023090
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXA6P1700011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0x3ee44ae6133dec179537a9607d8c31f7ad3c12bf18aed7afc470c7c574023090. 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/BXA6P1700011.
  date published: 2026-07-02T11:34:59Z
audio: Stilo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.347
  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: 0.765
  additional property: Energy
    type: PropertyValue
    value: 0.766
  additional property: Speechiness
    type: PropertyValue
    value: 0.302
  additional property: Acousticness
    type: PropertyValue
    value: 0.17
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.052
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.827
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.602
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major