Maria Alcina
type: MusicGroup
genre: mpb
description: Maria Alcina Leite (born 22 April 1949) is a Brazilian singer. Among her biggest successes were "Fio Maravilha" (Jorge Ben), the winner of the national phase of the Festival Internacional da Canção i
popularity: 19
followers: 5284
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x40c7cd43905f71cbee30b7c4c18ba9530499a9e540810b8be35084899741236e
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4027d354-0fd6-4f03-8f65-8cd1cde18e1e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4027d354-0fd6-4f03-8f65-8cd1cde18e1e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4027d354-0fd6-4f03-8f65-8cd1cde18e1e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
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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 0x40c7cd43905f71cbee30b7c4c18ba9530499a9e540810b8be35084899741236e. 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/4027d354-0fd6-4f03-8f65-8cd1cde18e1e.json and https://artists.proofprofile.net/proofs/artist/4027d354-0fd6-4f03-8f65-8cd1cde18e1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
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album: Maria Alcina
  type: MusicAlbum
  date published: 1973
album: Maria Alcina
  type: MusicAlbum
  date published: 1974
  track: Kid cavaquinho
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211613
    explicit: false
    by artist: Maria Alcina
    in album: Maria Alcina
      type: MusicAlbum
      date published: 1974
    genre: mpb
    isrc code: BRWMB0200315
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: CopyrightRegisteredAt
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0200315
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T10:25:43Z
    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 0x14382b26c95e6d6f0dc67eb0dad9a0ea1b1688fb170815ed8ced465c715580eb. Chain 2 (Bitcoin): anchored in block 957846 (2026-07-13T10:25:43Z), 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/BRWMB0200315.
      date published: 2026-07-13T10:25:43Z
    audio: Kid cavaquinho
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.305
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.633
      additional property: Energy
        type: PropertyValue
        value: 0.521
      additional property: Speechiness
        type: PropertyValue
        value: 0.204
      additional property: Acousticness
        type: PropertyValue
        value: 0.389
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.077
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.682
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.533
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ao Vivo
  type: MusicAlbum
  date published: 1977-04-04
album: Maria Alcina
  type: MusicAlbum
  date published: 1978-02-02
album: Plenitude
  type: MusicAlbum
  date published: 1979-08-03
album: Maria Alcina, confete e serpentina
  type: MusicAlbum
  date published: 2008-11-06
album: Canta Adoniran Barbosa
  type: MusicAlbum
  date published: 2010-03-10
album: Série Super Divas - Maria Alcina
  type: MusicAlbum
  date published: 2011-01-01
  track: Torresmo À Milaneza
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184733
    explicit: false
    by artist: Maria Alcina
    in album: Série Super Divas - Maria Alcina
      type: MusicAlbum
      date published: 2011-01-01
    genre: mpb
    isrc code: BREMI7900607
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958324
    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BREMI7900607
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:15:50Z
    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 0x7a49294e0799dfc2ab4fd708d937c45097c26b0df70e40aeebc0d4cc6198c6e8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:50Z), 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/BREMI7900607.
      date published: 2026-07-16T23:15:50Z
    audio: Torresmo À Milaneza
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.778
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: De Normal Bastam os Outros
album: Espírito de Tudo (Canções de Caetano Veloso)
album: Maria Alcina In Concert (ao Vivo)
album: Batuque Na Minha Janela (Ao Vivo)
album: Farinhada (ao Vivo)
album: Vo Bate Pa Tu
album: Extravagantes Celestes
album: Tico-Tico no Fubá / Diz Que Tem / Mamãe Eu Quero
album: Romeu ou Julieta
track: Xamego
track: Rodrigo e Alice (Procurando Chifre em Cabeça de Cavalo) [feat. Falamansa]
track: Filho maravilha (Fio maravilha)

Rodrigo e Alice (Procurando Chifre em Cabeça de Cavalo) [feat. Falamansa]
type: MusicRecording
duration: PT3M46S
duration ms: 226935
explicit: false
by artist: Velhas Virgens
by artist: Maria Alcina
by artist: Falamansa
in album: Rodrigo e Alice (Procurando Chifre em Cabeça de Cavalo) [feat. Falamansa]
  type: MusicAlbum
  date published: 2023-06-30
genre: brazilian-rock
isrc code: BRGRL2300001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T04:04:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13a75fde26e65e9ec5306d09037cb12daaf782db4a54a225c1b34b70f5d60c16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRGRL2300001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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: 956889
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-06T06:56:49+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 0x13a75fde26e65e9ec5306d09037cb12daaf782db4a54a225c1b34b70f5d60c16. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRGRL2300001.
  date published: 2026-07-06T07:16:32Z
audio: Rodrigo e Alice (Procurando Chifre em Cabeça de Cavalo) [feat. Falamansa]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.308
  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: 0.811
  additional property: Energy
    type: PropertyValue
    value: 0.679
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.07
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.427
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.924
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.595
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.507

Energy
type: PropertyValue
value: 0.867

Speechiness
type: PropertyValue
value: 0.337

Acousticness
type: PropertyValue
value: 0.351

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.329

Valence (Positivity)
type: PropertyValue
value: 0.827

Loudness (dB)
type: PropertyValue
value: -6.738

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

De Normal Bastam os Outros
type: MusicAlbum
date published: 2013-09-16
track: Bigorrilho
  type: MusicRecording
  duration: PT3M23S
  duration ms: 203840
  explicit: false
  by artist: Maria Alcina
  in album: De Normal Bastam os Outros
    type: MusicAlbum
    date published: 2013-09-16
  genre: mpb
  isrc code: BRELD1300024
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T10:14:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbf37a3911eb0f44b532a5d167cb0af808f4a8d0cba06bb19717d1d1f3bce6251
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958276
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958276
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRELD1300024
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T13:09:10Z
  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 0xbf37a3911eb0f44b532a5d167cb0af808f4a8d0cba06bb19717d1d1f3bce6251. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:09:10Z), 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/BRELD1300024.
    date published: 2026-07-16T13:09:10Z
  audio: Bigorrilho
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.952
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.803
    additional property: Energy
      type: PropertyValue
      value: 0.757
    additional property: Speechiness
      type: PropertyValue
      value: 0.263
    additional property: Acousticness
      type: PropertyValue
      value: 0.192
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.052
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.799
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.13
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Espírito de Tudo (Canções de Caetano Veloso)
type: MusicAlbum
date published: 2017-06-16

Maria Alcina In Concert (ao Vivo)
type: MusicAlbum
date published: 2019-04-26

Batuque Na Minha Janela (Ao Vivo)
type: MusicAlbum
date published: 2019-06-14

Farinhada (ao Vivo)
type: MusicAlbum
date published: 2020-01-31

Vo Bate Pa Tu
type: MusicAlbum
date published: 2020-06-24

Extravagantes Celestes
type: MusicAlbum
date published: 2022-02-25

Tico-Tico no Fubá / Diz Que Tem / Mamãe Eu Quero
type: MusicAlbum
date published: 2023-02-17

Romeu ou Julieta
type: MusicAlbum
date published: 2024-01-11

Xamego
type: MusicRecording
duration: PT3M6S
duration ms: 186252
explicit: false
by artist: Maria Alcina
in album: 100 Anos de Gonzagão
  type: MusicAlbum
  date published: 2012-07-11
popularity: 1
isrc code: BRECI1200085
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:01:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x23cd880404f62e6a1407a01bc270dd4f4358d471d26c3f7d9816e0bb5353fdb7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRECI1200085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0x23cd880404f62e6a1407a01bc270dd4f4358d471d26c3f7d9816e0bb5353fdb7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRECI1200085.
  date published: 2026-07-08T03:20:19Z
audio: Xamego
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.808
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.805
  additional property: Energy
    type: PropertyValue
    value: 0.844
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.611
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.686
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.195
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Filho maravilha (Fio maravilha)
type: MusicRecording
duration: PT4M40S
duration ms: 280746
explicit: false
by artist: Maria Alcina
in album: Brazilian Café
  type: MusicAlbum
  date published: 2019-11-08
isrc code: BRWMB0200338
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T03:00:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97a9cbbd48d5f0edebbe8c0e73d54dbce86583c7c70f4b0bbbce3a1280780b61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRWMB0200338
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0x97a9cbbd48d5f0edebbe8c0e73d54dbce86583c7c70f4b0bbbce3a1280780b61. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRWMB0200338.
  date published: 2026-07-06T06:56:49Z
audio: Filho maravilha (Fio maravilha)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.397
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.482
  additional property: Energy
    type: PropertyValue
    value: 0.778
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.862
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.014
  additional property: Liveness
    type: PropertyValue
    value: 0.375
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.921
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.441
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor