BRUFAN
type: MusicGroup
genre: boom bap
popularity: 20
followers: 369
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x15427ccb7a45ed822519d2a8f76aa85237176633b10de4ffb5823423582dfd17
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f15e26f7-f762-42bf-b420-919151319495.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f15e26f7-f762-42bf-b420-919151319495.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f15e26f7-f762-42bf-b420-919151319495
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
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 0x15427ccb7a45ed822519d2a8f76aa85237176633b10de4ffb5823423582dfd17. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f15e26f7-f762-42bf-b420-919151319495.json and https://artists.proofprofile.net/proofs/artist/f15e26f7-f762-42bf-b420-919151319495.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
album: Quarta Feira
  type: MusicAlbum
  date published: 2023-02-01
album: Canal 2
  type: MusicAlbum
  date published: 2023-05-19
album: Vozes
  type: MusicAlbum
  date published: 2023-06-23
album: Xote dos Medos
  type: MusicAlbum
  date published: 2023-07-26
album: O Que Testa a Fé
  type: MusicAlbum
  date published: 2024-03-04
album: Savu Afé
  type: MusicAlbum
  date published: 2024-05-24
album: Sunshine
  type: MusicAlbum
  date published: 2024-08-29
album: Ser Dourado
  type: MusicAlbum
  date published: 2024-11-07
album: Vinagre ou Vinho
  type: MusicAlbum
  date published: 2025-01-30
  track: Vinagre ou Vinho
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163764
    explicit: true
    by artist: BRUFAN
    in album: Vinagre ou Vinho
      type: MusicAlbum
      date published: 2025-01-30
    genre: boom bap
    isrc code: BCVHF2500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T09:18:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xca0c8d80a9ad20dc062259a72c48ee0760e9875e8e675ec93ab57e9e99da4952
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCVHF2500001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xca0c8d80a9ad20dc062259a72c48ee0760e9875e8e675ec93ab57e9e99da4952. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BCVHF2500001.
      date published: 2026-07-03T19:59:51Z
    audio: Vinagre ou Vinho
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.536
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.537
      additional property: Energy
        type: PropertyValue
        value: 0.717
      additional property: Speechiness
        type: PropertyValue
        value: 0.451
      additional property: Acousticness
        type: PropertyValue
        value: 0.737
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.027
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.767
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.68
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Graças
  type: MusicAlbum
  date published: 2025-03-13
  track: Graças
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195744
    explicit: false
    by artist: BRUFAN
    in album: Graças
      type: MusicAlbum
      date published: 2025-03-13
    genre: boom bap
    isrc code: BCVHF2500002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T15:15:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe55f016a4624fb1393a4e60ee9a8b1a85cad095e31d673683d9b6ca1dd0aec5c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958903
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958903
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCVHF2500002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:22:45Z
    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 0xe55f016a4624fb1393a4e60ee9a8b1a85cad095e31d673683d9b6ca1dd0aec5c. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/BCVHF2500002.
      date published: 2026-07-20T15:22:45Z
    audio: Graças
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.744
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Essas Esquinas
album: Mar No Peito
track: Sei o Caminho

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.588

Energy
type: PropertyValue
value: 0.76

Speechiness
type: PropertyValue
value: 0.118

Acousticness
type: PropertyValue
value: 0.603

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.37

Valence (Positivity)
type: PropertyValue
value: 0.876

Loudness (dB)
type: PropertyValue
value: -6.075

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

Vozes
type: MusicAlbum
date published: 2025-04-18

Essas Esquinas
type: MusicAlbum
date published: 2025-05-15

Mar No Peito
type: MusicAlbum
date published: 2025-07-24

Sei o Caminho
type: MusicRecording
duration: PT2M27S
duration ms: 147809
explicit: false
by artist: Mc Luanna
by artist: Ana Rima
by artist: Mello Santana
by artist: BRUFAN
in album: Sexto Sentido
  type: MusicAlbum
  date published: 2024-10-10
popularity: 35
genre: brazilian-trap
isrc code: BC0UT2400015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T08:22:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0ccf17a5b35aaa9d2fc76b9c54030c35276a353ac9154eb21f22db59e0f5471
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC0UT2400015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xe0ccf17a5b35aaa9d2fc76b9c54030c35276a353ac9154eb21f22db59e0f5471. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BC0UT2400015.
  date published: 2026-06-13T12:47:07Z
audio: Sei o Caminho
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.46
  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: 0.833
  additional property: Energy
    type: PropertyValue
    value: 0.779
  additional property: Speechiness
    type: PropertyValue
    value: 0.406
  additional property: Acousticness
    type: PropertyValue
    value: 0.053
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.072
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.455
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.941
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major