blkmc
type: MusicGroup
genre: boom bap
popularity: 6
followers: 287
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06f34229f7e17df4bb86dcbb101f8954e2823d2d7a552baafe444ed37c4a994b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d9c7b7d-f29a-4d53-b765-c737b3916b4c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d9c7b7d-f29a-4d53-b765-c737b3916b4c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d9c7b7d-f29a-4d53-b765-c737b3916b4c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
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 0x06f34229f7e17df4bb86dcbb101f8954e2823d2d7a552baafe444ed37c4a994b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d9c7b7d-f29a-4d53-b765-c737b3916b4c.json and https://artists.proofprofile.net/proofs/artist/1d9c7b7d-f29a-4d53-b765-c737b3916b4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
album: Na Contra Mão do Sistema
  type: MusicAlbum
  date published: 2018-12-14
album: Quem Você É
  type: MusicAlbum
  date published: 2019-05-31
album: Temporizador
  type: MusicAlbum
  date published: 2021-10-05
album: Lado Oeste
  type: MusicAlbum
  date published: 2021-10-15
album: Lukaku
  type: MusicAlbum
  date published: 2022-03-11
album: Patek
  type: MusicAlbum
  date published: 2022-08-14
album: Dia D
  type: MusicAlbum
  date published: 2023-01-13
album: Dog Mal
  type: MusicAlbum
  date published: 2023-04-06
album: Rock
  type: MusicAlbum
  date published: 2023-05-18
album: Matemática Básica
  type: MusicAlbum
  date published: 2023-06-27
album: Frank L.
  type: MusicAlbum
  date published: 2023-08-17
album: Drill Z.O 01 - "Fânjí"
  type: MusicAlbum
  date published: 2023-12-07
album: Nota Preta
  type: MusicAlbum
  date published: 2024-02-15
album: Scammer
  type: MusicAlbum
  date published: 2024-08-19
album: Ventania
  type: MusicAlbum
  date published: 2024-09-27
album: Não Posso Confiar em Você
  type: MusicAlbum
  date published: 2024-12-20
  track: Não Posso Confiar em Você
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164571
    explicit: false
    by artist: blkmc
    in album: Não Posso Confiar em Você
      type: MusicAlbum
      date published: 2024-12-20
    genre: boom bap
    isrc code: BX85G2400006
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:21:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9e23e9159da93e49feef8fb537444b454c78c53bef895b5b56a53b5efd8558f9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958322
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958322
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX85G2400006
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:44:14Z
    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 0x9e23e9159da93e49feef8fb537444b454c78c53bef895b5b56a53b5efd8558f9. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/BX85G2400006.
      date published: 2026-07-16T20:44:14Z
    audio: Não Posso Confiar em Você
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.106
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.824
      additional property: Energy
        type: PropertyValue
        value: 0.546
      additional property: Speechiness
        type: PropertyValue
        value: 0.311
      additional property: Acousticness
        type: PropertyValue
        value: 0.134
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.44
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.365
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.915
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Tempo se Passa Falece o Passado
  type: MusicAlbum
  date published: 2025-05-26
  track: Al Pacino
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150857
    explicit: true
    by artist: blkmc
    in album: Tempo se Passa Falece o Passado
      type: MusicAlbum
      date published: 2025-05-26
    genre: boom bap
    isrc code: BX85G2500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T04:37:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaab952806696e2f8467efdec80a1eceaf23f1b76ef826731b22f8fc7a067b678
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958825
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958825
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX85G2500001
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Al Pacino
album: Correria

OTSTimestamp
type: PropertyValue
value: 2026-07-20T04:55:29Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab952806696e2f8467efdec80a1eceaf23f1b76ef826731b22f8fc7a067b678. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/BX85G2500001.
date published: 2026-07-20T04:55:29Z

Al Pacino
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 139.835
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.781
additional property: Energy
  type: PropertyValue
  value: 0.596
additional property: Speechiness
  type: PropertyValue
  value: 0.429
additional property: Acousticness
  type: PropertyValue
  value: 0.517
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.112
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.655
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.864
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Minor

Correria
type: MusicAlbum
date published: 2025-07-11