Iara Espíndola
type: MusicGroup
popularity: 2
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e7ef6128ebf14dffd4d6eb7a0c25707068eedc58ab8441ac249bf2827e00005
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba1d776f-4dbd-41ec-b16c-219b11950ab2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba1d776f-4dbd-41ec-b16c-219b11950ab2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba1d776f-4dbd-41ec-b16c-219b11950ab2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9e7ef6128ebf14dffd4d6eb7a0c25707068eedc58ab8441ac249bf2827e00005","name":"Iara Espíndola","registered_at":"2026-06-20T16:34:21Z","symbol":"NIM1656222","token_address":"0x4fae29efb54573f6dd7f104559e93c9a1fd6c094","type":"artist","uuid":"ba1d776f-4dbd-41ec-b16c-219b11950ab2"}
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 0x9e7ef6128ebf14dffd4d6eb7a0c25707068eedc58ab8441ac249bf2827e00005. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba1d776f-4dbd-41ec-b16c-219b11950ab2.json and https://artists.proofprofile.net/proofs/artist/ba1d776f-4dbd-41ec-b16c-219b11950ab2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x9e7ef6128ebf14dffd4d6eb7a0c25707068eedc58ab8441ac249bf2827e00005","name":"Iara Espíndola","registered_at":"2026-06-20T16:34:21Z","symbol":"NIM1656222","token_address":"0x4fae29efb54573f6dd7f104559e93c9a1fd6c094","type":"artist","uuid":"ba1d776f-4dbd-41ec-b16c-219b11950ab2"}
album: Não Mata e Não Morre.
  type: MusicAlbum
  date published: 2024-08-30
track: Vou de Vai-Vai / O Boi Vai Atrás (Música Incidental)

Vou de Vai-Vai / O Boi Vai Atrás (Música Incidental)
type: MusicRecording
duration: PT4M4S
duration ms: 244560
explicit: false
by artist: Itamar Assumpção
by artist: Vange Milliet
by artist: Iara Espíndola
by artist: Anelis Assumpção
in album: Pretobrás
  type: MusicAlbum
  date published: 1998-11-01
genre: brazilian-indie
genre: mpb
genre: samba
genre: samba-paulista
genre: bossa-nova
genre: velha-guarda
isrc code: BRAPI0300394
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T17:28:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8085ce96c1960cdcc9015937c1b1db4a7b496854fcebb5424f6345c11fed52ed
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/BRAPI0300394
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x8085ce96c1960cdcc9015937c1b1db4a7b496854fcebb5424f6345c11fed52ed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRAPI0300394.
  date published: 2026-07-02T03:55:08Z
audio: Vou de Vai-Vai / O Boi Vai Atrás (Música Incidental)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.569
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.868
  additional property: Energy
    type: PropertyValue
    value: 0.296
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.863
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.795
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.804
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major