O Samuray
type: MusicGroup
genre: pagode
genre: pagode baiano
popularity: 3
followers: 131
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe8c354e39560fdf5dd315ddaf6021578b8fc7fb017f67eb38ae868dc7b36a0e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e7b8ef0-43ca-4230-8afb-890f6e600fb7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e7b8ef0-43ca-4230-8afb-890f6e600fb7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e7b8ef0-43ca-4230-8afb-890f6e600fb7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe8c354e39560fdf5dd315ddaf6021578b8fc7fb017f67eb38ae868dc7b36a0e3","name":"O Samuray","registered_at":"2026-06-17T15:24:37Z","symbol":"NIM1437535","token_address":"0x048dca7cb92f3a199dcb6b9bc971e573b37b9af0","type":"artist","uuid":"8e7b8ef0-43ca-4230-8afb-890f6e600fb7"}
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 0xe8c354e39560fdf5dd315ddaf6021578b8fc7fb017f67eb38ae868dc7b36a0e3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e7b8ef0-43ca-4230-8afb-890f6e600fb7.json and https://artists.proofprofile.net/proofs/artist/8e7b8ef0-43ca-4230-8afb-890f6e600fb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xe8c354e39560fdf5dd315ddaf6021578b8fc7fb017f67eb38ae868dc7b36a0e3","name":"O Samuray","registered_at":"2026-06-17T15:24:37Z","symbol":"NIM1437535","token_address":"0x048dca7cb92f3a199dcb6b9bc971e573b37b9af0","type":"artist","uuid":"8e7b8ef0-43ca-4230-8afb-890f6e600fb7"}
album: Proibidão do Samuray
  type: MusicAlbum
  date published: 2022-11-06
album: Proibidão do Samuray
  type: MusicAlbum
  date published: 2022-11-06
  track: Quer Piroca Tome!
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141000
    explicit: false
    by artist: O Samuray
    in album: Proibidão do Samuray
      type: MusicAlbum
      date published: 2022-11-06
    genre: pagode
    genre: pagode baiano
    isrc code: UKXN22265567
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T12:49:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x046bfa6b10dc02b6d63e863ae3da4601120198d10dcc4c6116fde1aaa3257011
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958736
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958736
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22265567
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T15:52:26Z
    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 0x046bfa6b10dc02b6d63e863ae3da4601120198d10dcc4c6116fde1aaa3257011. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:52:26Z), 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/UKXN22265567.
      date published: 2026-07-19T15:52:26Z
    audio: Quer Piroca Tome!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.992
      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: 0.868
      additional property: Energy
        type: PropertyValue
        value: 0.801
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.702
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.6
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.722
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mais Proibido Que o Proibidão
  type: MusicAlbum
  date published: 2023-11-04
album: Bloquinho É Fogo na Wolf
  type: MusicAlbum
  date published: 2024-03-08
album: Chora Perereca
  type: MusicAlbum
  date published: 2024-10-11
album: Quem Não For Samuray, Raiai
  type: MusicAlbum
  date published: 2025-02-27