Douglas Espíndola
type: MusicGroup
genre: arrocha
genre: forró
genre: seresta
popularity: 4
followers: 145
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c91590c770a2e7cccb7b6ab736b232602fded5988a661c813bd2ec978e295b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953933
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953933
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20073394-c5c1-47b7-a0ba-95bafc5297a5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20073394-c5c1-47b7-a0ba-95bafc5297a5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/20073394-c5c1-47b7-a0ba-95bafc5297a5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:13:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c91590c770a2e7cccb7b6ab736b232602fded5988a661c813bd2ec978e295b6","name":"Douglas Espíndola","registered_at":"2026-06-16T00:42:54Z","symbol":"NIM0883609","token_address":"0x4c15a35dec1282a8bd6fc8c3516ebf8127422495","type":"artist","uuid":"20073394-c5c1-47b7-a0ba-95bafc5297a5"}
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 0x8c91590c770a2e7cccb7b6ab736b232602fded5988a661c813bd2ec978e295b6. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20073394-c5c1-47b7-a0ba-95bafc5297a5.json and https://artists.proofprofile.net/proofs/artist/20073394-c5c1-47b7-a0ba-95bafc5297a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:13:24Z
  text: {"copyright_id":"0x8c91590c770a2e7cccb7b6ab736b232602fded5988a661c813bd2ec978e295b6","name":"Douglas Espíndola","registered_at":"2026-06-16T00:42:54Z","symbol":"NIM0883609","token_address":"0x4c15a35dec1282a8bd6fc8c3516ebf8127422495","type":"artist","uuid":"20073394-c5c1-47b7-a0ba-95bafc5297a5"}
album: Sou Feliz
  type: MusicAlbum
  date published: 2007
album: Sou Não Sou
  type: MusicAlbum
  date published: 2023-09-07
album: ATUALIZADO 2.0
  type: MusicAlbum
  date published: 2023-11-17
album: ATUALIZADO
  type: MusicAlbum
  date published: 2023-11-17
  track: Duas
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144288
    explicit: false
    by artist: Douglas Espíndola
    in album: ATUALIZADO
      type: MusicAlbum
      date published: 2023-11-17
    genre: arrocha
    genre: forró
    genre: seresta
    isrc code: DGA0P2310781
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T00:17:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x54db10d01b32943e904455b7fbf2b28931f974e0e0130f118613d8e1e416f3a2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2310781
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x54db10d01b32943e904455b7fbf2b28931f974e0e0130f118613d8e1e416f3a2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA0P2310781.
      date published: 2026-07-05T01:12:41Z
    audio: Duas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.025
      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: 0.718
      additional property: Energy
        type: PropertyValue
        value: 0.653
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.311
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.197
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.813
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.712
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Love Toda Hora
  type: MusicAlbum
  date published: 2024-02-24
album: Se Eu Me Entregar
  type: MusicAlbum
  date published: 2024-09-02
album: Arrochando Sem Culpa
  type: MusicAlbum
  date published: 2024-10-19
album: Douglas Do Arrocha
  type: MusicAlbum
  date published: 2025-01-08