David Corrêa
type: MusicGroup
genre: samba
description: David Antônio Corrêa (5 June 1937 – 10 May 2020) was a Brazilian singer-songwriter of the genres samba, samba-enredo and pagode. Life As a singer-songwriter, Corrêa released four studio albums and th
popularity: 8
followers: 222
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-19T03:51:26Z
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album: Lição de Malandragem
  type: MusicAlbum
  date published: 1981-11-13
album: Vendiendo Arepas
  type: MusicAlbum
  date published: 2023-10-26
album: Me Quedé Soldando
  type: MusicAlbum
  date published: 2023-10-26
album: El Mal Ordeñador
  type: MusicAlbum
  date published: 2023-10-26
album: El Electricista
  type: MusicAlbum
  date published: 1979
album: Escolas de Samba - Enredos - Portela
  type: MusicAlbum
  date published: 1993-02-25
  track: Ilú Ayê
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      date published: 1993-02-25
    genre: samba-enredo
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-06-13T13:32:09Z
    audio: Ilú Ayê
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      additional property: Danceability
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  track: Hoje Tem Marmelada / Das Maravilhas do Mar, Fez-Se o Esplendor de Uma Noite
  track: O Mundo Melhor de Pinxinguinha (Pizindin)
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    by artist: Silvinho Da Portela
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      type: MusicAlbum
      date published: 1993-02-25
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
    audio: O Mundo Melhor de Pinxinguinha (Pizindin)
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  track: Rio, Eterna Capital do Samba
  track: Macunaíma
  track: Contos de Areia
  track: As Seis Datas Magnas
album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 82
album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 80
album: Sambas de Enredo das Escolas de Samba do Grupo 1A, Carnaval 81
album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 79
album: Sambas de Enredo das Escolas de Samba do Grupo 1 (1973)
album: Historias
album: Colombia Popular Tropical y Parrandera, Vol. 4
album: Carnaval 73
album: Eu Quero é Cair Na Folia - Carnaval Rio 73

Hoje Tem Marmelada / Das Maravilhas do Mar, Fez-Se o Esplendor de Uma Noite
type: MusicRecording
duration: PT5M49S
duration ms: 349266
explicit: false
by artist: David Corrêa
in album: Escolas de Samba - Enredos - Portela
  type: MusicAlbum
  date published: 1993-02-25
genre: samba-enredo
isrc code: BRSME9300244
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Hoje Tem Marmelada / Das Maravilhas do Mar, Fez-Se o Esplendor de Uma Noite
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    type: PropertyValue
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Macunaíma
type: MusicRecording
duration: PT4M5S
duration ms: 245133
explicit: false
by artist: David Corrêa
in album: Escolas de Samba - Enredos - Portela
  type: MusicAlbum
  date published: 1993-02-25
genre: samba-enredo
isrc code: BRSME9300248
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additional property: OTSHash
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57e1f43cbdb059b963356e9c734cf40295c2b10354328b554b321fce5cfb52c. 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/BRSME9300248.
  date published: 2026-07-08T03:20:19Z
audio: Macunaíma
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Skindô, Skindô
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duration: PT3M16S
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explicit: false
by artist: David Corrêa
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
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genre: samba-enredo
isrc code: BRTTP0700026
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Skindô, Skindô
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Meu Brasil Brasileiro
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in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 82
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genre: samba-enredo
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0x94575f25827e6a0da2c5f953a854ea48b6e54fc2dc8050cf8077a93764864faf. 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/BRTTP2100624.
  date published: 2026-07-08T03:20:19Z
audio: Meu Brasil Brasileiro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.914
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.735
  additional property: Energy
    type: PropertyValue
    value: 0.604
  additional property: Speechiness
    type: PropertyValue
    value: 0.294
  additional property: Acousticness
    type: PropertyValue
    value: 0.286
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.264
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.758
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.862
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hoje tem Marmelada
type: MusicRecording
duration: PT4M4S
duration ms: 244636
explicit: false
by artist: David Corrêa
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 80
  type: MusicAlbum
  date published: 2022-01-13
popularity: 3
genre: samba-enredo
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce147474a7cc28953173badd957e7d8b4551e685059aaae2909c8ed397567b7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRTTP2100599.
  date published: 2026-07-29T19:35:34Z
audio: Hoje tem Marmelada
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.434
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.584
  additional property: Energy
    type: PropertyValue
    value: 0.624
  additional property: Speechiness
    type: PropertyValue
    value: 0.288
  additional property: Acousticness
    type: PropertyValue
    value: 0.335
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.797
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.862
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: BRTTP2100599
additional property: CopyrightID
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: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100599
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Das Maravilhas do Mar, Fez-Se o Esplendor de Uma Noite
type: MusicRecording
duration: PT3M47S
duration ms: 227866
explicit: false
by artist: David Corrêa
in album: Sambas de Enredo das Escolas de Samba do Grupo 1A, Carnaval 81
  type: MusicAlbum
  date published: 2022-01-10
genre: samba-enredo
isrc code: BRTTP0700013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T20:39:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27754a4098370efbdbc2b29b1debfa50637bba69a10190c3d02d914e5b6ebd90
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/BRTTP0700013
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 0x27754a4098370efbdbc2b29b1debfa50637bba69a10190c3d02d914e5b6ebd90. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRTTP0700013.
  date published: 2026-07-02T05:09:12Z
audio: Das Maravilhas do Mar, Fez-Se o Esplendor de Uma Noite
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.267
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.725
  additional property: Energy
    type: PropertyValue
    value: 0.646
  additional property: Speechiness
    type: PropertyValue
    value: 0.1
  additional property: Acousticness
    type: PropertyValue
    value: 0.625
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.148
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.825
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.755
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Incrível, Fantástico, Extraordinário
type: MusicRecording
duration: PT4M4S
duration ms: 244401
explicit: false
by artist: David Corrêa
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 79
  type: MusicAlbum
  date published: 2022-01-12
genre: samba-enredo
isrc code: BRTTP0700007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T14:22:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2fd88113d0affad3f8a7502ee3b917d99f6f1e40275c94ba0b8a35caa995e9d6
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/BRTTP0700007
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 0x2fd88113d0affad3f8a7502ee3b917d99f6f1e40275c94ba0b8a35caa995e9d6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRTTP0700007.
  date published: 2026-07-02T11:38:34Z
audio: Incrível, Fantástico, Extraordinário
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.223
  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: 0.669
  additional property: Energy
    type: PropertyValue
    value: 0.748
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.15
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.296
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.861
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.325
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pasargada (O Amigo do Rei)
type: MusicRecording
duration: PT3M42S
duration ms: 222354
explicit: false
by artist: David Corrêa
by artist: Portela
in album: Sambas de Enredo das Escolas de Samba do Grupo 1 (1973)
  type: MusicAlbum
  date published: 1973-01-01
genre: samba-enredo
isrc code: QMBZ91571093
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:34:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7257d78d2794ca07e9b5e0730c3e58c7879a586363f5b85793281dca8bb567ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91571093
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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: 957073
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T18:39:05+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 0x7257d78d2794ca07e9b5e0730c3e58c7879a586363f5b85793281dca8bb567ce. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMBZ91571093.
  date published: 2026-07-07T18:39:05Z
audio: Pasargada (O Amigo do Rei)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.294
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.617
  additional property: Energy
    type: PropertyValue
    value: 0.799
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.194
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.064
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.667
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.984
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Energy
type: PropertyValue
value: 0.769

Speechiness
type: PropertyValue
value: 0.157

Acousticness
type: PropertyValue
value: 0.363

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.054

Valence (Positivity)
type: PropertyValue
value: 0.887

Loudness (dB)
type: PropertyValue
value: -14.61

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Rio, Eterna Capital do Samba
type: MusicRecording
duration: PT3M35S
duration ms: 215493
explicit: false
by artist: Monarco
by artist: VELHA GUARDA DA PORTELA
in album: Escolas de Samba - Enredos - Portela
  type: MusicAlbum
  date published: 1993-02-25
genre: pagode
genre: samba
genre: samba-enredo
genre: velha-guarda
isrc code: BRSME9300247
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T09:20:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe86854c69eaaa537f9cf091a542bf5c68a2ae62f90ecd4fe227b60bc33983f9f
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/BRSME9300247
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86854c69eaaa537f9cf091a542bf5c68a2ae62f90ecd4fe227b60bc33983f9f. 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/BRSME9300247.
  date published: 2026-07-02T03:55:08Z
audio: Rio, Eterna Capital do Samba
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.206
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.576
  additional property: Energy
    type: PropertyValue
    value: 0.677
  additional property: Speechiness
    type: PropertyValue
    value: 0.247
  additional property: Acousticness
    type: PropertyValue
    value: 0.492
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.76
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.923
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Contos de Areia
type: MusicRecording
duration: PT5M13S
duration ms: 313933
explicit: false
by artist: Dedé Da Portela
in album: Escolas de Samba - Enredos - Portela
  type: MusicAlbum
  date published: 1993-02-25
genre: samba-enredo
isrc code: BRSME9300249
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T01:53:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c63fdc73dca3d273d5b1e248d2f34eea1caca3b9dfb6608a73aef594d90c1e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300249
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x1c63fdc73dca3d273d5b1e248d2f34eea1caca3b9dfb6608a73aef594d90c1e6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRSME9300249.
  date published: 2026-06-13T15:41:10Z
audio: Contos de Areia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.094
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.695
  additional property: Energy
    type: PropertyValue
    value: 0.687
  additional property: Speechiness
    type: PropertyValue
    value: 0.126
  additional property: Acousticness
    type: PropertyValue
    value: 0.329
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.805
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.683
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

As Seis Datas Magnas
type: MusicRecording
duration: PT2M57S
duration ms: 177973
explicit: false
by artist: Mauro Diniz
in album: Escolas de Samba - Enredos - Portela
  type: MusicAlbum
  date published: 1993-02-25
isrc code: BRSME9300252
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T21:27:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66f61aa3001a107c908b79482511ca56d88d749fef78ac6da15a4fa88490ec6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSME9300252
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x66f61aa3001a107c908b79482511ca56d88d749fef78ac6da15a4fa88490ec6c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRSME9300252.
  date published: 2026-06-13T15:41:10Z
audio: As Seis Datas Magnas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.984
  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: 0.627
  additional property: Energy
    type: PropertyValue
    value: 0.639
  additional property: Speechiness
    type: PropertyValue
    value: 0.077
  additional property: Acousticness
    type: PropertyValue
    value: 0.437
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.842
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.09
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
type: MusicAlbum
date published: 2022-01-15
track: O Gigante em Berço Esplêndido
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182778
  explicit: false
  by artist: Neguinho Da Beija Flor
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
    type: MusicAlbum
    date published: 2022-01-15
  isrc code: BRTTP2100639
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T12:32:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x43bd855e6b527163cab91d511bb0941dc4975879de2037eecd451c839174687c
  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/BRTTP2100639
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bd855e6b527163cab91d511bb0941dc4975879de2037eecd451c839174687c. 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/BRTTP2100639.
    date published: 2026-07-02T03:55:08Z
  audio: O Gigante em Berço Esplêndido
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.975
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.689
    additional property: Energy
      type: PropertyValue
      value: 0.741
    additional property: Speechiness
      type: PropertyValue
      value: 0.084
    additional property: Acousticness
      type: PropertyValue
      value: 0.386
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.266
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.919
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.534
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Quem Pode, Pode, Quem não Pode...
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175908
  explicit: false
  by artist: Quinzinho
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
    type: MusicAlbum
    date published: 2022-01-15
  isrc code: BRTTP2100643
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T20:40:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x57132c93280574c585850551e0ba832ac71107a5fc1dadc13365f2c1420e4e5d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100643
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  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 0x57132c93280574c585850551e0ba832ac71107a5fc1dadc13365f2c1420e4e5d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRTTP2100643.
    date published: 2026-07-02T05:09:12Z
  audio: Quem Pode, Pode, Quem não Pode...
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.725
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.751
    additional property: Energy
      type: PropertyValue
      value: 0.644
    additional property: Speechiness
      type: PropertyValue
      value: 0.205
    additional property: Acousticness
      type: PropertyValue
      value: 0.422
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.09
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.849
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.259
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Yes, Nós Temos Braguinha
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198922
  explicit: false
  by artist: Jurandir
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
    type: MusicAlbum
    date published: 2022-01-15
  isrc code: BRTTP2100644
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T10:24:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x87b09240fd0a29dbd11fdefe8c08621aed39dbb42e5a5e8e8ca0eb0705a7e6fd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957084
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957084
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100644
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Yes, Nós Temos Braguinha
track: Contos de Areia
track: Skindô, Skindô
track: 9215

OTSTimestamp
type: PropertyValue
value: 2026-07-07T20:41:57Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b09240fd0a29dbd11fdefe8c08621aed39dbb42e5a5e8e8ca0eb0705a7e6fd. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/BRTTP2100644.
date published: 2026-07-07T20:41:57Z

Yes, Nós Temos Braguinha
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 145.823
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.628
additional property: Energy
  type: PropertyValue
  value: 0.605
additional property: Speechiness
  type: PropertyValue
  value: 0.174
additional property: Acousticness
  type: PropertyValue
  value: 0.308
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.134
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.662
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.82
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

Contos de Areia
type: MusicRecording
duration: PT3M18S
duration ms: 198008
explicit: false
by artist: Silvinho Da Portela
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
  type: MusicAlbum
  date published: 2022-01-15
isrc code: BRTTP2100646
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T21:24:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3cb17cd799db858b5a72eae5629629954569c7bcb75c7e5343ef8f4d42d0d10
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100646
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0xc3cb17cd799db858b5a72eae5629629954569c7bcb75c7e5343ef8f4d42d0d10. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTTP2100646.
  date published: 2026-06-13T17:25:41Z
audio: Contos de Areia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.151
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.659
  additional property: Energy
    type: PropertyValue
    value: 0.782
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.161
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.175
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.879
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.767
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

9215
type: MusicRecording
duration: PT3M7S
duration ms: 187141
explicit: false
by artist: Almir Saint-Clair
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 84
  type: MusicAlbum
  date published: 2022-01-15
isrc code: BRTTP2100650
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:53:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35a9035bf10f1d8959624fc917b73b3bf3a0cef0f2a54113e176d7ccf405e241
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100650
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x35a9035bf10f1d8959624fc917b73b3bf3a0cef0f2a54113e176d7ccf405e241. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRTTP2100650.
  date published: 2026-07-08T03:22:41Z
audio: 9215
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.792
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.743
  additional property: Energy
    type: PropertyValue
    value: 0.778
  additional property: Speechiness
    type: PropertyValue
    value: 0.256
  additional property: Acousticness
    type: PropertyValue
    value: 0.269
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.901
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.471
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 82
type: MusicAlbum
date published: 2022-01-13
track: Lima Barreto, Mulato, Pobre, mas Livre
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223582
  explicit: false
  by artist: Sobrinho
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 82
    type: MusicAlbum
    date published: 2022-01-13
  isrc code: BRTTP2100616
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T01:25:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1309f3ac8c6cbb54fdc2cbcadc8e0c85992eadb174cf4b490158d1ceb9b8182b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100616
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x1309f3ac8c6cbb54fdc2cbcadc8e0c85992eadb174cf4b490158d1ceb9b8182b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRTTP2100616.
    date published: 2026-07-08T03:22:41Z
  audio: Lima Barreto, Mulato, Pobre, mas Livre
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.581
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.768
    additional property: Energy
      type: PropertyValue
      value: 0.654
    additional property: Speechiness
      type: PropertyValue
      value: 0.404
    additional property: Acousticness
      type: PropertyValue
      value: 0.23
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.051
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.786
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.154
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: É Hoje
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208352
  explicit: false
  by artist: Aroldo Melodia
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 82
    type: MusicAlbum
    date published: 2022-01-13
  isrc code: BRTTP9700027
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T21:22:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe00f4e9420deb496d8335faa5066ccb039cbf94796d6989b13efb764092e4b63
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953536
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP9700027
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  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 0xe00f4e9420deb496d8335faa5066ccb039cbf94796d6989b13efb764092e4b63. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTTP9700027.
    date published: 2026-06-13T17:25:41Z
  audio: É Hoje
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.77
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.673
    additional property: Energy
      type: PropertyValue
      value: 0.601
    additional property: Speechiness
      type: PropertyValue
      value: 0.375
    additional property: Acousticness
      type: PropertyValue
      value: 0.189
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.118
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.591
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.827
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: O Olho Azul da Serpente
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221727
  explicit: false
  by artist: Neguinho Da Beija Flor
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 82
    type: MusicAlbum
    date published: 2022-01-13
  isrc code: BRTTP2100621
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T12:32:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x29102292d917fde05526b747ff6f0c1e7dda45b45ff486ca0cf0e937cd1aef2c
  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/BRTTP2100621
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: O Olho Azul da Serpente
track: Meu Brasil Brasileiro
track: Bumbum Praticumbum Prugurundum

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29102292d917fde05526b747ff6f0c1e7dda45b45ff486ca0cf0e937cd1aef2c. 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/BRTTP2100621.
date published: 2026-07-02T03:55:08Z

O Olho Azul da Serpente
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 140.435
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.712
additional property: Energy
  type: PropertyValue
  value: 0.621
additional property: Speechiness
  type: PropertyValue
  value: 0.295
additional property: Acousticness
  type: PropertyValue
  value: 0.385
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.315
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.834
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.543
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor

Bumbum Praticumbum Prugurundum
type: MusicRecording
duration: PT3M41S
duration ms: 221570
explicit: false
by artist: Quinzinho
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1A - Carnaval 82
  type: MusicAlbum
  date published: 2022-01-13
isrc code: BRTTP9700001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T12:32:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3a105b914e19d3beadb894fea31c701f24dd2f6d279f8a814c3837da2151e28
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/BRTTP9700001
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a105b914e19d3beadb894fea31c701f24dd2f6d279f8a814c3837da2151e28. 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/BRTTP9700001.
  date published: 2026-07-02T03:55:08Z
audio: Bumbum Praticumbum Prugurundum
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.503
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.548
  additional property: Energy
    type: PropertyValue
    value: 0.629
  additional property: Speechiness
    type: PropertyValue
    value: 0.339
  additional property: Acousticness
    type: PropertyValue
    value: 0.429
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.694
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.815
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.898
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 80
type: MusicAlbum
date published: 2022-01-13
track: O que que a Bahia tem
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200986
  explicit: false
  by artist: Dominguinhos Do Estacio
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 80
    type: MusicAlbum
    date published: 2022-01-13
  popularity: 7
  genre: samba
  isrc code: BRTTP2100596
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T12:34:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdf16d097f30e43635cf0a3f64f0d61f11e1204e4a76a01596f3773d64fac3d46
  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/BRTTP2100596
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf16d097f30e43635cf0a3f64f0d61f11e1204e4a76a01596f3773d64fac3d46. 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/BRTTP2100596.
    date published: 2026-07-02T03:55:08Z
  audio: O que que a Bahia tem
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.212
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.673
    additional property: Energy
      type: PropertyValue
      value: 0.708
    additional property: Speechiness
      type: PropertyValue
      value: 0.204
    additional property: Acousticness
      type: PropertyValue
      value: 0.275
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.739
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.379
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Império das Ilusões, Atlântida, Eldorado, Sonho e Aventura
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237583
  explicit: false
  by artist: Darcy Maravilha
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 80
    type: MusicAlbum
    date published: 2022-01-13
  popularity: 1
  isrc code: BRTTP2100597
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:41:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x61b4821e88dca7e9c86382a999cd44c5fe24cce66001ad495ddcbc2f951cb14d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100597
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x61b4821e88dca7e9c86382a999cd44c5fe24cce66001ad495ddcbc2f951cb14d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRTTP2100597.
    date published: 2026-07-08T03:22:41Z
  audio: Império das Ilusões, Atlântida, Eldorado, Sonho e Aventura
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.168
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.704
    additional property: Energy
      type: PropertyValue
      value: 0.758
    additional property: Speechiness
      type: PropertyValue
      value: 0.322
    additional property: Acousticness
      type: PropertyValue
      value: 0.458
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.096
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.766
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.942
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: O Sol da Meia-Noite, Uma Viagem ao País das Maravilhas
  type: MusicRecording
  duration: PT4M7S
  duration ms: 247066
  explicit: false
  by artist: Neguinho Da Beija Flor
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 80
    type: MusicAlbum
    date published: 2022-01-13
  popularity: 4
  isrc code: BRTTP0700023
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T20:40:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78c2929ca620c782c44abc0191de0f1409d5dade640980c246e6555ac95c2ae7
  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
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: O Sol da Meia-Noite, Uma Viagem ao País das Maravilhas
track: Deixa Falar
track: Hoje tem Marmelada

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP0700023

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c2929ca620c782c44abc0191de0f1409d5dade640980c246e6555ac95c2ae7. 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/BRTTP0700023.
date published: 2026-07-02T03:55:08Z

O Sol da Meia-Noite, Uma Viagem ao País das Maravilhas
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 138.143
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.558
additional property: Energy
  type: PropertyValue
  value: 0.807
additional property: Speechiness
  type: PropertyValue
  value: 0.406
additional property: Acousticness
  type: PropertyValue
  value: 0.572
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.166
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.778
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.109
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Minor

Deixa Falar
type: MusicRecording
duration: PT3M38S
duration ms: 218253
explicit: false
by artist: Zaira
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 80
  type: MusicAlbum
  date published: 2022-01-13
popularity: 1
isrc code: BRTTP2100603
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:37:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf12bc1821f72e63aeccce95a270db7e19ad9a50f4fe11fcc2485591073960c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100603
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0xaf12bc1821f72e63aeccce95a270db7e19ad9a50f4fe11fcc2485591073960c9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRTTP2100603.
  date published: 2026-07-08T03:39:04Z
audio: Deixa Falar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.27
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.687
  additional property: Energy
    type: PropertyValue
    value: 0.788
  additional property: Speechiness
    type: PropertyValue
    value: 0.302
  additional property: Acousticness
    type: PropertyValue
    value: 0.519
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.63
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.25
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Sambas de Enredo das Escolas de Samba do Grupo 1A, Carnaval 81
type: MusicAlbum
date published: 2022-01-10
track: O Teu Cabelo Não Nega (Só Dá Lalá)
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212715
  explicit: false
  by artist: Dominguinhos Do Estacio
  in album: Sambas de Enredo das Escolas de Samba do Grupo 1A, Carnaval 81
    type: MusicAlbum
    date published: 2022-01-10
  genre: samba
  isrc code: BRTTP0700015
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T20:23:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf8f7aa7a903ba0a0bd8463ac47a511ff2689bbe3cf706c5ac39b74694d542afb
  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/BRTTP0700015
  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 0xf8f7aa7a903ba0a0bd8463ac47a511ff2689bbe3cf706c5ac39b74694d542afb. 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/BRTTP0700015.
    date published: 2026-07-08T03:20:19Z
  audio: O Teu Cabelo Não Nega (Só Dá Lalá)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.733
    additional property: Energy
      type: PropertyValue
      value: 0.554
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.318
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.05
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.926
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.233
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Dos Jardins de Éden À Era de Aquarius
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231836
  explicit: false
  by artist: Marcos Moran
  in album: Sambas de Enredo das Escolas de Samba do Grupo 1A, Carnaval 81
    type: MusicAlbum
    date published: 2022-01-10
  isrc code: BRTTP2100608
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:09:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd05f41621b1f837f298bfc05fcf163010444f283137561a02642e33636d56dd6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100608
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  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 0xd05f41621b1f837f298bfc05fcf163010444f283137561a02642e33636d56dd6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRTTP2100608.
    date published: 2026-07-08T08:56:20Z
  audio: Dos Jardins de Éden À Era de Aquarius
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 144.717
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.657
    additional property: Energy
      type: PropertyValue
      value: 0.607
    additional property: Speechiness
      type: PropertyValue
      value: 0.328
    additional property: Acousticness
      type: PropertyValue
      value: 0.364
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.89
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.848
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Das Maravilhas do Mar, Fez-Se o Esplendor de Uma Noite
track: Carnaval do Brasil - A Oitava das Sete Maravilhas do Mundo
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251637
  explicit: false
  by artist: Neguinho Da Beija Flor
  in album: Sambas de Enredo das Escolas de Samba do Grupo 1A, Carnaval 81
    type: MusicAlbum
    date published: 2022-01-10
  isrc code: BRTTP2100610
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T14:31:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1e87eee6f4d25762aa2f878861eff193d3c2c255bd3e7b1f09cd908ec025b43f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Carnaval do Brasil - A Oitava das Sete Maravilhas do Mundo
track: Na Terra do Pau-Brasil, Nem Tudo Caminha Viu

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100610

OTSTimestamp
type: PropertyValue
value: 2026-07-02T05:09:12Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e87eee6f4d25762aa2f878861eff193d3c2c255bd3e7b1f09cd908ec025b43f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRTTP2100610.
date published: 2026-07-02T05:09:12Z

Carnaval do Brasil - A Oitava das Sete Maravilhas do Mundo
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 145.911
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.667
additional property: Energy
  type: PropertyValue
  value: 0.646
additional property: Speechiness
  type: PropertyValue
  value: 0.2
additional property: Acousticness
  type: PropertyValue
  value: 0.256
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.361
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.83
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.075
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Minor

Na Terra do Pau-Brasil, Nem Tudo Caminha Viu
type: MusicRecording
duration: PT3M43S
duration ms: 223477
explicit: false
by artist: Abílio Martins
in album: Sambas de Enredo das Escolas de Samba do Grupo 1A, Carnaval 81
  type: MusicAlbum
  date published: 2022-01-10
genre: samba
isrc code: BRTTP2100613
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:48:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4d9e5bf998b615e2d92f12ca6c83cadf2333eba61200f6ce09984706be07980
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100613
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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 0xf4d9e5bf998b615e2d92f12ca6c83cadf2333eba61200f6ce09984706be07980. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRTTP2100613.
  date published: 2026-07-08T08:56:20Z
audio: Na Terra do Pau-Brasil, Nem Tudo Caminha Viu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.907
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.684
  additional property: Energy
    type: PropertyValue
    value: 0.673
  additional property: Speechiness
    type: PropertyValue
    value: 0.217
  additional property: Acousticness
    type: PropertyValue
    value: 0.279
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.912
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.32
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 79
type: MusicAlbum
date published: 2022-01-12
track: O Paraíso da Loucura
  type: MusicRecording
  duration: PT4M43S
  duration ms: 283480
  explicit: false
  by artist: Neguinho Da Beija Flor
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 79
    type: MusicAlbum
    date published: 2022-01-12
  isrc code: BRTTP2100583
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T14:22:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78e26f0fdaff464fb1b68eb03900c4bc38a70665ea60252448ff0939c8c9c3e8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956351
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP2100583
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  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 0x78e26f0fdaff464fb1b68eb03900c4bc38a70665ea60252448ff0939c8c9c3e8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRTTP2100583.
    date published: 2026-07-02T11:38:34Z
  audio: O Paraíso da Loucura
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.178
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.705
    additional property: Energy
      type: PropertyValue
      value: 0.896
    additional property: Speechiness
      type: PropertyValue
      value: 0.07
    additional property: Acousticness
      type: PropertyValue
      value: 0.148
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.315
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.93
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.941
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Oxumarê - a Lenda do Arco-Íris
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221257
  explicit: false
  by artist: Dominguinhos Do Estacio
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 79
    type: MusicAlbum
    date published: 2022-01-12
  genre: samba
  isrc code: BRTTP2100585
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:29:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x88359801a8f8cc71e68fb70d40b406f8d47af647e9503b63a1f87d436cad76f4
  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/BRTTP2100585
  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 0x88359801a8f8cc71e68fb70d40b406f8d47af647e9503b63a1f87d436cad76f4. 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/BRTTP2100585.
    date published: 2026-07-08T03:20:19Z
  audio: Oxumarê - a Lenda do Arco-Íris
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.752
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.647
    additional property: Energy
      type: PropertyValue
      value: 0.689
    additional property: Speechiness
      type: PropertyValue
      value: 0.175
    additional property: Acousticness
      type: PropertyValue
      value: 0.213
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.121
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.945
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.797
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Incrível, Fantástico, Extraordinário
track: O Que Será?
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216973
  explicit: false
  by artist: Aroldo Melodia
  in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 79
    type: MusicAlbum
    date published: 2022-01-12
  isrc code: BRTTP0700031
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T20:39:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xef4c2d2d8cd5b24609beb043aebfea8281b82a68cadd9e75cc2dde100956e1b5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: O Que Será?
track: Uruçumirim Paraíso Tupinambá

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTTP0700031

OTSTimestamp
type: PropertyValue
value: 2026-07-02T05:09:12Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4c2d2d8cd5b24609beb043aebfea8281b82a68cadd9e75cc2dde100956e1b5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRTTP0700031.
date published: 2026-07-02T05:09:12Z

O Que Será?
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 144.749
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.619
additional property: Energy
  type: PropertyValue
  value: 0.832
additional property: Speechiness
  type: PropertyValue
  value: 0.091
additional property: Acousticness
  type: PropertyValue
  value: 0.137
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.073
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.961
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.583
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Uruçumirim Paraíso Tupinambá
type: MusicRecording
duration: PT3M28S
duration ms: 208274
explicit: false
by artist: Carlinhos De Pilares
in album: Sambas de Enredo Das Escolas De Samba Do Grupo 1 - Carnaval 79
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audio: Uruçumirim Paraíso Tupinambá
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Sambas de Enredo das Escolas de Samba do Grupo 1 (1973)
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track: Pasargada (O Amigo do Rei)
track: O Saber Poético da Literatura de Cordel
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Historias
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date published: 2017-01-01

Colombia Popular Tropical y Parrandera, Vol. 4
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date published: 2017-07-15

Carnaval 73
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date published: 1973-01-01

Eu Quero é Cair Na Folia - Carnaval Rio 73
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date published: 1973-06-06