Afonso Nigro
type: MusicGroup
genre: brazilian rock
popularity: 20
followers: 6706
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84771a4bf129d760976d8c1f3a22faca6435ba01af23b490f2c683c6291b8189
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953827
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953827
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1b76ba7-f1c6-471b-978a-0c6d698fa77b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1b76ba7-f1c6-471b-978a-0c6d698fa77b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d1b76ba7-f1c6-471b-978a-0c6d698fa77b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T19:59:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x84771a4bf129d760976d8c1f3a22faca6435ba01af23b490f2c683c6291b8189","name":"Afonso Nigro","registered_at":"2026-06-15T02:34:29Z","symbol":"NIM0654903","token_address":"0x88946eb0703df4357922c870737f000b761dd86c","type":"artist","uuid":"d1b76ba7-f1c6-471b-978a-0c6d698fa77b"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84771a4bf129d760976d8c1f3a22faca6435ba01af23b490f2c683c6291b8189. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1b76ba7-f1c6-471b-978a-0c6d698fa77b.json and https://artists.proofprofile.net/proofs/artist/d1b76ba7-f1c6-471b-978a-0c6d698fa77b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x84771a4bf129d760976d8c1f3a22faca6435ba01af23b490f2c683c6291b8189","name":"Afonso Nigro","registered_at":"2026-06-15T02:34:29Z","symbol":"NIM0654903","token_address":"0x88946eb0703df4357922c870737f000b761dd86c","type":"artist","uuid":"d1b76ba7-f1c6-471b-978a-0c6d698fa77b"}
album: Afonso
  type: MusicAlbum
  date published: 1993-02-26
  track: Brilho No Olhar
    type: MusicRecording
    duration: PT4M9S
    duration ms: 249666
    explicit: false
    by artist: Afonso Nigro
    in album: Afonso
      type: MusicAlbum
      date published: 1993-02-26
    genre: brazilian rock
    isrc code: BRBMG9300514
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T01:00:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeedd553b0fcdce1deaf23ae054986b677562bc62b0b5fcaa1657ce1e08bd091f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959087
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959087
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRBMG9300514
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:05:55Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedd553b0fcdce1deaf23ae054986b677562bc62b0b5fcaa1657ce1e08bd091f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/BRBMG9300514.
      date published: 2026-07-22T02:05:55Z
    audio: Brilho No Olhar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.525
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.5
      additional property: Energy
        type: PropertyValue
        value: 0.613
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.051
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.201
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.302
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.69
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Afonso Nigro
  type: MusicAlbum
  date published: 1995-02-26
album: Mistério
  type: MusicAlbum
  date published: 1996-02-26
album: P... Da Vida
  type: MusicAlbum
  date published: 2022-03-18
track: P da Vida (Tutta La Vita) - Cover
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271267
  explicit: false
  by artist: Plebe Rude
  by artist: Afonso Nigro
  in album: P da Vida
    type: MusicAlbum
    date published: 2020-11-27
  genre: brazilian-rock
  genre: brazilian-pop
  isrc code: BXK9C2000027
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T13:42:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x52e0a3853aa3bcffe6e71442ed963c1513bad5efb2f0d02ba9bb98dfcd435842
  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/BXK9C2000027
  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 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e0a3853aa3bcffe6e71442ed963c1513bad5efb2f0d02ba9bb98dfcd435842. 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/BXK9C2000027.
    date published: 2026-07-02T03:55:08Z
  audio: P da Vida (Tutta La Vita) - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.768
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.67
    additional property: Energy
      type: PropertyValue
      value: 0.402
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: O Gigante Adormece

Acousticness
type: PropertyValue
value: 0.117

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.114

Valence (Positivity)
type: PropertyValue
value: 0.399

Loudness (dB)
type: PropertyValue
value: -18.473

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

O Gigante Adormece
type: MusicRecording
duration: PT2M25S
duration ms: 145817
explicit: false
by artist: Plebe Rude
by artist: Afonso Nigro
in album: P da Vida
  type: MusicAlbum
  date published: 2020-11-27
genre: brazilian-rock
genre: brazilian-pop
isrc code: BXK9C2000028
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:04:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55f2ca124aa9736a1ac268fa4197573b2b9685e8766e9177a3f3f5db5fab5265
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXK9C2000028
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f2ca124aa9736a1ac268fa4197573b2b9685e8766e9177a3f3f5db5fab5265. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BXK9C2000028.
  date published: 2026-07-31T02:19:15Z
audio: O Gigante Adormece
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.511
  additional property: Musical Key
    type: PropertyValue
    value: 0
  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: 0.557
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.061
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.185
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.565
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.919
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major