Coração Nordestino
type: MusicGroup
popularity: 10
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d1ab7bc51f45b690311201cbd8f4dbdfc97f2d42c2a1022b70e91b0d3028aad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1cdffed-912e-4d8c-a08b-96f8a19ac418.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1cdffed-912e-4d8c-a08b-96f8a19ac418.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a1cdffed-912e-4d8c-a08b-96f8a19ac418
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1d1ab7bc51f45b690311201cbd8f4dbdfc97f2d42c2a1022b70e91b0d3028aad","name":"Coração Nordestino","registered_at":"2026-06-20T06:02:00Z","symbol":"NIM1534103","token_address":"0x3baa7f54e4550459d6cf3258214790682097a61b","type":"artist","uuid":"a1cdffed-912e-4d8c-a08b-96f8a19ac418"}
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 0x1d1ab7bc51f45b690311201cbd8f4dbdfc97f2d42c2a1022b70e91b0d3028aad. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1cdffed-912e-4d8c-a08b-96f8a19ac418.json and https://artists.proofprofile.net/proofs/artist/a1cdffed-912e-4d8c-a08b-96f8a19ac418.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x1d1ab7bc51f45b690311201cbd8f4dbdfc97f2d42c2a1022b70e91b0d3028aad","name":"Coração Nordestino","registered_at":"2026-06-20T06:02:00Z","symbol":"NIM1534103","token_address":"0x3baa7f54e4550459d6cf3258214790682097a61b","type":"artist","uuid":"a1cdffed-912e-4d8c-a08b-96f8a19ac418"}
album: Baião de Doi2-O Banquete do Povo
  type: MusicAlbum
  date published: 2024-06-19
album: Carcará-O Reinado do Sertão
  type: MusicAlbum
  date published: 2025-06-24
  track: Esquenta
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159242
    explicit: false
    by artist: Coração Nordestino
    in album: Carcará-O Reinado do Sertão
      type: MusicAlbum
      date published: 2025-06-24
    isrc code: QZTB92506508
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:38:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x731240c64d62abe31c529459bf22e610af2fa1728a5d9b15ff92b45f77710148
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92506508
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0x731240c64d62abe31c529459bf22e610af2fa1728a5d9b15ff92b45f77710148. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB92506508.
      date published: 2026-07-05T12:31:54Z
    audio: Esquenta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.951
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.494
      additional property: Energy
        type: PropertyValue
        value: 0.828
      additional property: Speechiness
        type: PropertyValue
        value: 0.098
      additional property: Acousticness
        type: PropertyValue
        value: 0.138
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.429
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.82
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.53
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Entrada
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181472
    explicit: false
    by artist: Coração Nordestino
    in album: Carcará-O Reinado do Sertão
      type: MusicAlbum
      date published: 2025-06-24
    isrc code: QZTB92506509
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T01:50:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa222d699c14e7e9b481e00063b1959e0e0abf6ed1ddaac858c2aa2a8215a51a9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958805
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958805
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92506509
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T04:53:27Z
    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 0xa222d699c14e7e9b481e00063b1959e0e0abf6ed1ddaac858c2aa2a8215a51a9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:53:27Z), 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/QZTB92506509.
      date published: 2026-07-20T04:53:27Z
    audio: Entrada
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.23
      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: 0.393
      additional property: Energy
        type: PropertyValue
        value: 0.484
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.229
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.255
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.286
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Virgulino tem Fé
  track: Aliança / A Flor e o Carcará / Festejo

Loudness (dB)
type: PropertyValue
value: -6.956

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Virgulino tem Fé
type: MusicRecording
duration: PT1M33S
duration ms: 93936
explicit: false
by artist: Coração Nordestino
in album: Carcará-O Reinado do Sertão
  type: MusicAlbum
  date published: 2025-06-24
isrc code: QZTB92506510
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T10:28:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbbed3ba630e4518100aa4433a58e7f7ae025689354a8d516c713e711d2c677b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956822
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956822
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92506510
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T18:48:28Z
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 0xbbed3ba630e4518100aa4433a58e7f7ae025689354a8d516c713e711d2c677b2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTB92506510.
  date published: 2026-07-05T18:48:28Z
audio: Virgulino tem Fé
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.88
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.486
  additional property: Energy
    type: PropertyValue
    value: 0.699
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.102
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.131
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.476
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.543
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Aliança / A Flor e o Carcará / Festejo
type: MusicRecording
duration: PT4M25S
duration ms: 265743
explicit: false
by artist: Coração Nordestino
in album: Carcará-O Reinado do Sertão
  type: MusicAlbum
  date published: 2025-06-24
isrc code: QZTB92506512
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T06:45:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x071ac13bc0fa5c9f2abcb9bde63b3af5b3e74e00b2d36385a18157c2f9ac3889
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958839
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958839
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92506512
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T09:47:39Z
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 0x071ac13bc0fa5c9f2abcb9bde63b3af5b3e74e00b2d36385a18157c2f9ac3889. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:47:39Z), 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/QZTB92506512.
  date published: 2026-07-20T09:47:39Z
audio: Aliança / A Flor e o Carcará / Festejo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 173.845
  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: 0.514
  additional property: Energy
    type: PropertyValue
    value: 0.855
  additional property: Speechiness
    type: PropertyValue
    value: 0.088
  additional property: Acousticness
    type: PropertyValue
    value: 0.138
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.315
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.768
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.261
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major