Samurai MC
type: MusicGroup
popularity: 6
followers: 178
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f67cd853a3132eda127e2fc7b9d66b28e86deb2fb7d07b218bcc1324243eb68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f2fb65a-5fdc-43bc-85e7-ba0d29b0d9b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f2fb65a-5fdc-43bc-85e7-ba0d29b0d9b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5f2fb65a-5fdc-43bc-85e7-ba0d29b0d9b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1f67cd853a3132eda127e2fc7b9d66b28e86deb2fb7d07b218bcc1324243eb68","name":"Samurai MC","registered_at":"2026-06-16T22:43:15Z","symbol":"NIM1198753","token_address":"0x97c428441133caf90b0720d220bf3425ea8d77b1","type":"artist","uuid":"5f2fb65a-5fdc-43bc-85e7-ba0d29b0d9b0"}
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 0x1f67cd853a3132eda127e2fc7b9d66b28e86deb2fb7d07b218bcc1324243eb68. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f2fb65a-5fdc-43bc-85e7-ba0d29b0d9b0.json and https://artists.proofprofile.net/proofs/artist/5f2fb65a-5fdc-43bc-85e7-ba0d29b0d9b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1f67cd853a3132eda127e2fc7b9d66b28e86deb2fb7d07b218bcc1324243eb68","name":"Samurai MC","registered_at":"2026-06-16T22:43:15Z","symbol":"NIM1198753","token_address":"0x97c428441133caf90b0720d220bf3425ea8d77b1","type":"artist","uuid":"5f2fb65a-5fdc-43bc-85e7-ba0d29b0d9b0"}
album: Gratidão
  type: MusicAlbum
  date published: 2017
album: Visão do Cria
  type: MusicAlbum
  date published: 2019-08-25
album: Velha Escola
  type: MusicAlbum
  date published: 2019-10-01
album: Festa na Favela
  type: MusicAlbum
  date published: 2019-12-12
  track: Arrascaeta
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182117
    explicit: false
    by artist: Samurai MC
    in album: Festa na Favela
      type: MusicAlbum
      date published: 2019-12-12
    isrc code: BX3ZH1900013
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T16:29:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe3bdae6e8cc8ab6dc3cb917aae9c6eedce968efacc0bb0b9186c13889123aac3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX3ZH1900013
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xe3bdae6e8cc8ab6dc3cb917aae9c6eedce968efacc0bb0b9186c13889123aac3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BX3ZH1900013.
      date published: 2026-07-05T18:48:28Z
    audio: Arrascaeta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.492
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.704
      additional property: Energy
        type: PropertyValue
        value: 0.603
      additional property: Speechiness
        type: PropertyValue
        value: 0.477
      additional property: Acousticness
        type: PropertyValue
        value: 0.058
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.917
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.822
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: O Poço (feat. MV Bill)
  type: MusicAlbum
  date published: 2021-07-30
album: O poço
  type: MusicAlbum
  date published: 2021-07-30
  track: O poço
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180095
    explicit: false
    by artist: Samurai MC
    in album: O poço
      type: MusicAlbum
      date published: 2021-07-30
    isrc code: BXF852100036
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T04:28:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa297941e06927b108e03ffcfbc158021ada8cb87bca38e95cb6c2e9a64e8aa86
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958104
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958104
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXF852100036
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T05:34:05Z
    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 0xa297941e06927b108e03ffcfbc158021ada8cb87bca38e95cb6c2e9a64e8aa86. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/BXF852100036.
      date published: 2026-07-15T05:34:05Z
    audio: O poço
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.671
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.545
      additional property: Energy
        type: PropertyValue
        value: 0.741
      additional property: Speechiness
        type: PropertyValue
        value: 0.488
      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: Ataque À Corte Imperial
album: Renascimento
album: Diário de um Cristão
album: 1 Rei

Acousticness
type: PropertyValue
value: 0.127

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.141

Valence (Positivity)
type: PropertyValue
value: 0.263

Loudness (dB)
type: PropertyValue
value: -9.738

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Minor

Ataque À Corte Imperial
type: MusicAlbum
date published: 2023-02-10

Renascimento
type: MusicAlbum
date published: 2024-04-12

Diário de um Cristão
type: MusicAlbum
date published: 2024-07-19

1 Rei
type: MusicAlbum
date published: 2025-01-24