Dan Rocha
type: MusicGroup
genre: forró
popularity: 10
followers: 1282
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x15fa2eae248478a3927a1d752a11b66f3dffb67ea88a476a9a1c55a368e2dfea
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14475694-3883-4187-8d23-271e709feb53.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/14475694-3883-4187-8d23-271e709feb53.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/14475694-3883-4187-8d23-271e709feb53
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x15fa2eae248478a3927a1d752a11b66f3dffb67ea88a476a9a1c55a368e2dfea","name":"Dan Rocha","registered_at":"2026-06-15T20:41:05Z","symbol":"NIM0825910","token_address":"0x010a75e5fc0939dd030ef20bf4f986da484f9de6","type":"artist","uuid":"14475694-3883-4187-8d23-271e709feb53"}
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 0x15fa2eae248478a3927a1d752a11b66f3dffb67ea88a476a9a1c55a368e2dfea. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14475694-3883-4187-8d23-271e709feb53.json and https://artists.proofprofile.net/proofs/artist/14475694-3883-4187-8d23-271e709feb53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
  text: {"copyright_id":"0x15fa2eae248478a3927a1d752a11b66f3dffb67ea88a476a9a1c55a368e2dfea","name":"Dan Rocha","registered_at":"2026-06-15T20:41:05Z","symbol":"NIM0825910","token_address":"0x010a75e5fc0939dd030ef20bf4f986da484f9de6","type":"artist","uuid":"14475694-3883-4187-8d23-271e709feb53"}
album: 100% Forrozão, Vol. 1
  type: MusicAlbum
  date published: 2017-02-21
album: Cine Privê
  type: MusicAlbum
  date published: 2017-11-14
album: Ao Vivo em Governador Valadares
  type: MusicAlbum
  date published: 2018-09-01
  track: Moda dos Traiados - Ao Vivo
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231758
    explicit: false
    by artist: Dan Rocha
    in album: Ao Vivo em Governador Valadares
      type: MusicAlbum
      date published: 2018-09-01
    genre: forró
    isrc code: QZ5AB2049186
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T21:33:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2fd5bf17ec233d935cafe703aac2856888e386080680d58748b98ef387d0ae7a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 958617
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958617
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2049186
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T22:07:13Z
    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 0x2fd5bf17ec233d935cafe703aac2856888e386080680d58748b98ef387d0ae7a. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZ5AB2049186.
      date published: 2026-07-18T22:07:13Z
    audio: Moda dos Traiados - Ao Vivo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 193.793
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.639
      additional property: Energy
        type: PropertyValue
        value: 0.974
      additional property: Speechiness
        type: PropertyValue
        value: 0.122
      additional property: Acousticness
        type: PropertyValue
        value: 0.228
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.219
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.903
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.047
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ao Vivo em Governador Valadares, Vol. 2
  type: MusicAlbum
  date published: 2018-10-17
album: Ao Vivo em Governador Valadares: Vol. 2
  type: MusicAlbum
  date published: 2018-10-17
album: Verão 2019
  type: MusicAlbum
  date published: 2019-02-08
album: Bailão do Dan Rocha, Vol. 2
  type: MusicAlbum
  date published: 2019-06-07
album: Coração Fi Duma Égua
  type: MusicAlbum
  date published: 2021-02-26
album: Tijolinho por Tijolinho (Cover)
  type: MusicAlbum
  date published: 2021-04-09
album: Gemidinha
  type: MusicAlbum
  date published: 2021-08-11
album: Gemidinha
  type: MusicAlbum
  date published: 2021-09-03
album: Volta Bebê Volta Neném (Cover)
  type: MusicAlbum
  date published: 2021-10-15
album: Sou da Roça
  type: MusicAlbum
  date published: 2025-04-25