Heroína do Iguará
type: MusicGroup
popularity: 12
followers: 530
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe1e3695e3a815c3c1f756faa855b80802d0ea518b939f84e9acfcb22f4c700d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5063bce9-a2f6-454b-9045-f4273b881112.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5063bce9-a2f6-454b-9045-f4273b881112.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5063bce9-a2f6-454b-9045-f4273b881112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe1e3695e3a815c3c1f756faa855b80802d0ea518b939f84e9acfcb22f4c700d4","name":"Heroína do Iguará","registered_at":"2026-06-14T12:56:49Z","symbol":"NIM0459779","token_address":"0xfa746c7f965a8c70a58162c853fef41a0af23a24","type":"artist","uuid":"5063bce9-a2f6-454b-9045-f4273b881112"}
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 0xe1e3695e3a815c3c1f756faa855b80802d0ea518b939f84e9acfcb22f4c700d4. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5063bce9-a2f6-454b-9045-f4273b881112.json and https://artists.proofprofile.net/proofs/artist/5063bce9-a2f6-454b-9045-f4273b881112.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0xe1e3695e3a815c3c1f756faa855b80802d0ea518b939f84e9acfcb22f4c700d4","name":"Heroína do Iguará","registered_at":"2026-06-14T12:56:49Z","symbol":"NIM0459779","token_address":"0xfa746c7f965a8c70a58162c853fef41a0af23a24","type":"artist","uuid":"5063bce9-a2f6-454b-9045-f4273b881112"}
album: Boi de Nina Rodrigues: São João do Maranhão
  type: MusicAlbum
  date published: 2010-06-01
album: Boi de Nina Rodrigues, São João 2012
  type: MusicAlbum
  date published: 2012-06-01
  track: Nordeste Brasileiro
    type: MusicRecording
    duration: PT5M2S
    duration ms: 302520
    explicit: true
    by artist: Heroína do Iguará
    in album: Boi de Nina Rodrigues, São João 2012
      type: MusicAlbum
      date published: 2012-06-01
    isrc code: US7VG1942008
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T22:48:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf1e61973f5e557891daf557e1faad8bea1b54541716e7f152738d0bee35fa1ab
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1942008
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xf1e61973f5e557891daf557e1faad8bea1b54541716e7f152738d0bee35fa1ab. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US7VG1942008.
      date published: 2026-07-05T01:12:41Z
    audio: Nordeste Brasileiro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 192.052
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.558
      additional property: Energy
        type: PropertyValue
        value: 0.923
      additional property: Speechiness
        type: PropertyValue
        value: 0.114
      additional property: Acousticness
        type: PropertyValue
        value: 0.274
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.78
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.034
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Boi de Nina Rodrigues
  type: MusicAlbum
  date published: 2018-06-01
album: Nina é Nina Boi
  type: MusicAlbum
  date published: 2019-01-27