Irmãs Metralha
type: MusicGroup
genre: funk carioca
popularity: 14
followers: 522
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee31bec4b220425fd6a4d4c9194436e22e87c840e39b096b7864e9f65c1dd339
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/f01dffa9-8d79-473a-86ea-31dc6cc56197.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f01dffa9-8d79-473a-86ea-31dc6cc56197.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f01dffa9-8d79-473a-86ea-31dc6cc56197
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xee31bec4b220425fd6a4d4c9194436e22e87c840e39b096b7864e9f65c1dd339","name":"Irmãs Metralha","registered_at":"2026-06-15T05:43:49Z","symbol":"NIM0700102","token_address":"0xf3d0a9e35e1f6fb9ff5ab0206a2f5bf759bbaede","type":"artist","uuid":"f01dffa9-8d79-473a-86ea-31dc6cc56197"}
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 0xee31bec4b220425fd6a4d4c9194436e22e87c840e39b096b7864e9f65c1dd339. 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/f01dffa9-8d79-473a-86ea-31dc6cc56197.json and https://artists.proofprofile.net/proofs/artist/f01dffa9-8d79-473a-86ea-31dc6cc56197.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
  text: {"copyright_id":"0xee31bec4b220425fd6a4d4c9194436e22e87c840e39b096b7864e9f65c1dd339","name":"Irmãs Metralha","registered_at":"2026-06-15T05:43:49Z","symbol":"NIM0700102","token_address":"0xf3d0a9e35e1f6fb9ff5ab0206a2f5bf759bbaede","type":"artist","uuid":"f01dffa9-8d79-473a-86ea-31dc6cc56197"}
album: Quadradinho de Milhões
  type: MusicAlbum
  date published: 2022-07-01
album: Quadradinho de Milhões
  type: MusicAlbum
  date published: 2022-07-01
album: Senta Vai
  type: MusicAlbum
  date published: 2023-03-25
album: Mágica Com a Bunda
  type: MusicAlbum
  date published: 2023-04-07
album: Mágica Com a Bunda
  type: MusicAlbum
  date published: 2023-04-07
  track: Mágica Com a Bunda
    type: MusicRecording
    duration: PT2M35S
    duration ms: 155769
    explicit: false
    by artist: Irmãs Metralha
    in album: Mágica Com a Bunda
      type: MusicAlbum
      date published: 2023-04-07
    genre: funk carioca
    isrc code: BR90B2300009
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T15:36:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x18f507a43c7bb4adc0cbe6f1ff9049f40c798a1a7ad1bd8f1a5d589b6041b132
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957145
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957145
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR90B2300009
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T08:56:20Z
    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 0x18f507a43c7bb4adc0cbe6f1ff9049f40c798a1a7ad1bd8f1a5d589b6041b132. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BR90B2300009.
      date published: 2026-07-08T08:56:20Z
    audio: Mágica Com a Bunda
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.473
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.903
      additional property: Energy
        type: PropertyValue
        value: 0.644
      additional property: Speechiness
        type: PropertyValue
        value: 0.421
      additional property: Acousticness
        type: PropertyValue
        value: 0.085
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.368
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.716
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.183
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Relíquias das Irmãs Metralha
  type: MusicAlbum
  date published: 2023-04-14
album: Relíquias das Irmãs Metralha
  type: MusicAlbum
  date published: 2023-04-14
album: Metralhada das Irmãs Metralha
  type: MusicAlbum
  date published: 2023-04-20
album: Relíquias das Irmãs Metralha Pt. 2
  type: MusicAlbum
  date published: 2023-05-20
  track: Relíquias das Irmãs Metralha Pt. 2
    type: MusicRecording
    duration: PT1M56S
    duration ms: 116871
    explicit: false
    by artist: Irmãs Metralha
    in album: Relíquias das Irmãs Metralha Pt. 2
      type: MusicAlbum
      date published: 2023-05-20
    genre: funk carioca
    isrc code: BR90B2300038
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T01:12:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x68e3072ab918d086fb7263eded6944658ca6f2875f7c9aa168373afa943b4cd9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956742
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956742
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR90B2300038
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T05:07:15Z
    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 0x68e3072ab918d086fb7263eded6944658ca6f2875f7c9aa168373afa943b4cd9. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/BR90B2300038.
      date published: 2026-07-05T05:07:15Z
    audio: Relíquias das Irmãs Metralha Pt. 2
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.268
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      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: Relíquias das Irmãs Metralha Pt. 3
album: Quadradinho de S
album: Abertura
album: Montagem Dançante 2023

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.82

Energy
type: PropertyValue
value: 0.898

Speechiness
type: PropertyValue
value: 0.329

Acousticness
type: PropertyValue
value: 0.706

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.812

Valence (Positivity)
type: PropertyValue
value: 0.626

Loudness (dB)
type: PropertyValue
value: -4.45

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Relíquias das Irmãs Metralha Pt. 2
type: MusicAlbum
date published: 2023-05-20

Relíquias das Irmãs Metralha Pt. 3
type: MusicAlbum
date published: 2023-05-26

Relíquias das Irmãs Metralha Pt. 3
type: MusicAlbum
date published: 2023-05-26

Quadradinho de S
type: MusicAlbum
date published: 2023-07-18

Abertura
type: MusicAlbum
date published: 2023-08-25

Montagem Dançante 2023
type: MusicAlbum
date published: 2023-12-08