Chico Chagas
type: MusicGroup
genre: brazilian jazz
genre: forró
genre: forro tradicional
popularity: 17
followers: 2350
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2cc494be-405d-4378-a831-fcb1afff88f3
additional property: OTSTimestamp
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  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7a22df033c3f079015e889143be8a00b573dfbba25745dd3c1ed5d1c66bc63. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cc494be-405d-4378-a831-fcb1afff88f3.json and https://artists.proofprofile.net/proofs/artist/2cc494be-405d-4378-a831-fcb1afff88f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0x6f7a22df033c3f079015e889143be8a00b573dfbba25745dd3c1ed5d1c66bc63","name":"Chico Chagas","registered_at":"2026-06-14T09:05:50Z","symbol":"NIM0404675","token_address":"0x7b8d7dd6c8a6d5f1be2def45b3c1101e6dafc866","type":"artist","uuid":"2cc494be-405d-4378-a831-fcb1afff88f3"}
album: E por Falar em Acordeon
  type: MusicAlbum
  date published: 2006-08-01
album: Um Chopin no Bach Ouvindo Forró
  type: MusicAlbum
  date published: 2012-02-08
  track: Also Sprach Zarathustra
    type: MusicRecording
    duration: PT4M51S
    duration ms: 291506
    explicit: false
    by artist: Chico Chagas
    in album: Um Chopin no Bach Ouvindo Forró
      type: MusicAlbum
      date published: 2012-02-08
    genre: brazilian jazz
    genre: forró
    genre: forro tradicional
    isrc code: BRV3P1100019
    additional property: CopyrightID
    additional property: CopyrightStatus
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      type: PropertyValue
      value: https://blockstream.info/api/block-height/958324
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRV3P1100019
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:52:11Z
    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 0x4388cb33e1693eb965c08f090dc6def95b5fb4c3c109d554d6887a9818aa99d2. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:52:11Z), 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/BRV3P1100019.
      date published: 2026-07-16T23:52:11Z
    audio: Also Sprach Zarathustra
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.035
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.696
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.322
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.79
      additional property: Liveness
        type: PropertyValue
        value: 0.077
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.891
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.682
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Swan Lake
    type: MusicRecording
    duration: PT5M27S
    duration ms: 327240
    explicit: false
    by artist: Chico Chagas
    in album: Um Chopin no Bach Ouvindo Forró
      type: MusicAlbum
      date published: 2012-02-08
    genre: brazilian jazz
    genre: forró
    genre: forro tradicional
    isrc code: BRV3P1100024
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    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlock
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      value: 958303
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRV3P1100024
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:39:24Z
    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 0xad10fd126f9d1fd424aa249a6812f5a3f096074548b966ca768aac9669fa6496. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/BRV3P1100024.
      date published: 2026-07-16T16:39:24Z
    audio: Swan Lake
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.017
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.512
      additional property: Energy
        type: PropertyValue
        value: 0.624
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.192
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Um Chopin no Bach Ouvindo Forró
  track: Sinfonia n.40
album: O Mundo Mágico de Maria
album: Bossa Jazz
album: Natal Sanfonado
album: Meu Encanto
album: When You Wish Upon a Star

Instrumentalness
type: PropertyValue
value: 0.003

Liveness
type: PropertyValue
value: 0.202

Valence (Positivity)
type: PropertyValue
value: 0.702

Loudness (dB)
type: PropertyValue
value: -7.753

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Um Chopin no Bach Ouvindo Forró
type: MusicRecording
duration: PT4M10S
duration ms: 250840
explicit: false
by artist: Chico Chagas
in album: Um Chopin no Bach Ouvindo Forró
  type: MusicAlbum
  date published: 2012-02-08
genre: brazilian jazz
genre: forró
genre: forro tradicional
isrc code: BRV3P1100023
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T16:25:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd78345566455b2ac4e9447f52580ef5af23890661eb75618dddac7e9629c6e8
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 958582
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958582
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRV3P1100023
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T16:47:25Z
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 0xfd78345566455b2ac4e9447f52580ef5af23890661eb75618dddac7e9629c6e8. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/BRV3P1100023.
  date published: 2026-07-18T16:47:25Z
audio: Um Chopin no Bach Ouvindo Forró
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.995
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.664
  additional property: Energy
    type: PropertyValue
    value: 0.852
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.385
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.961
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.965
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.86
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia n.40
type: MusicRecording
duration: PT4M22S
duration ms: 262040
explicit: false
by artist: Chico Chagas
in album: Um Chopin no Bach Ouvindo Forró
  type: MusicAlbum
  date published: 2012-02-08
genre: brazilian jazz
genre: forró
genre: forro tradicional
isrc code: BRV3P1100027
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-30T02:01:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b864a7714ab34a04d1ca980761ae677ce6a91ff76e2c5b904241f95e4e2b9c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRV3P1100027
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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 0x4b864a7714ab34a04d1ca980761ae677ce6a91ff76e2c5b904241f95e4e2b9c4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRV3P1100027.
  date published: 2026-07-02T16:51:38Z
audio: Sinfonia n.40
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.052
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.732
  additional property: Energy
    type: PropertyValue
    value: 0.648
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.26
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.066
  additional property: Liveness
    type: PropertyValue
    value: 0.068
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.964
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.112
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Um Chopin no Bach Ouvindo Forró
type: MusicAlbum
date published: 2012-02-08

Um Chopin no Bach Ouvindo Forró
type: MusicAlbum
date published: 2012-02-08

O Mundo Mágico de Maria
type: MusicAlbum
date published: 2013-10-12

Bossa Jazz
type: MusicAlbum
date published: 2022-11-22

Natal Sanfonado
type: MusicAlbum
date published: 2023-12-15

Meu Encanto
type: MusicAlbum
date published: 2024-09-06

When You Wish Upon a Star
type: MusicAlbum
date published: 2024-11-14