Blacka
type: MusicGroup
popularity: 5
followers: 229
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dfbac94b689de77f7ef19c39cf4572a3bd1e7d1441ffeff5e13858f59f5cb17
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cb3c3ae-4c91-4c4b-b6db-e465dfa53127.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cb3c3ae-4c91-4c4b-b6db-e465dfa53127.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4cb3c3ae-4c91-4c4b-b6db-e465dfa53127
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
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 0x5dfbac94b689de77f7ef19c39cf4572a3bd1e7d1441ffeff5e13858f59f5cb17. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cb3c3ae-4c91-4c4b-b6db-e465dfa53127.json and https://artists.proofprofile.net/proofs/artist/4cb3c3ae-4c91-4c4b-b6db-e465dfa53127.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: Metal y Plomo
  type: MusicAlbum
  date published: 2019-08-30
album: No Doy el Perfil
  type: MusicAlbum
  date published: 2019-09-06
album: Medio Metro
  type: MusicAlbum
  date published: 2019-10-11
album: Diamante en Bruto
  type: MusicAlbum
  date published: 2019-10-18
album: Chuletas
  type: MusicAlbum
  date published: 2019-11-01
album: Máquina de Guerra
  type: MusicAlbum
  date published: 2019-12-20
album: Sonrisas Malevolas
  type: MusicAlbum
  date published: 2019-12-27
album: Paso de Madurar
  type: MusicAlbum
  date published: 2020-01-03
album: Me Sobran Huevos
  type: MusicAlbum
  date published: 2020-01-10
album: Fuck Your Fame
  type: MusicAlbum
  date published: 2020-01-17
album: Maquina de Guerra
  type: MusicAlbum
  date published: 2020-01-24
album: Making Hits
  type: MusicAlbum
  date published: 2020-06-12
album: Making Hits
  type: MusicAlbum
  date published: 2020-06-12
  track: Making Hits
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200113
    explicit: false
    by artist: Blacka
    in album: Making Hits
      type: MusicAlbum
      date published: 2020-06-12
    isrc code: QM6N22019298
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T21:03:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x98d000df55880154d9d60e544be58bcb799d944ec03a27944a03634db5081618
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22019298
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    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 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 0x98d000df55880154d9d60e544be58bcb799d944ec03a27944a03634db5081618. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6N22019298.
      date published: 2026-07-08T03:22:41Z
    audio: Making Hits
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.859
      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: 0.816
      additional property: Energy
        type: PropertyValue
        value: 0.459
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.167
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.238
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.905
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Warning
  type: MusicAlbum
  date published: 2020-06-26
album: Que Se Jodan
  type: MusicAlbum
  date published: 2020-07-10
album: Que Se Jodan
  type: MusicAlbum
  date published: 2020-07-10
album: Game Over
  type: MusicAlbum
  date published: 2021-04-02
album: Bastion
  type: MusicAlbum
  date published: 2021-04-23
album: Herida Abierta (Remix)
  type: MusicAlbum
  date published: 2021-06-25
album: El Baile de los Mancos
  type: MusicAlbum
  date published: 2021-07-23
album: Black Coco
  type: MusicAlbum
  date published: 2021-12-10
album: Esta Vez
  type: MusicAlbum
  date published: 2023-02-17
album: C'EST FINI
  type: MusicAlbum
  date published: 2023-03-17
album: CLAVE
  type: MusicAlbum
  date published: 2023-05-05
album: BAILE PA2
  type: MusicAlbum
  date published: 2023-06-02
album: Si Me Das A Elegir
  type: MusicAlbum
  date published: 2023-07-14
album: BUNTHEM
  type: MusicAlbum
  date published: 2024-01-19
album: A-Nakatomi plaza
album: Back Again
album: I can fly
track: Pa Que Correr
track: Sangre en el Papel

A-Nakatomi plaza
type: MusicAlbum
date published: 2024-05-31

Back Again
type: MusicAlbum
date published: 2025-04-11

I can fly
type: MusicAlbum
date published: 2025-08-01

Pa Que Correr
type: MusicRecording
duration: PT4M34S
duration ms: 274235
explicit: false
by artist: K.Libre.50
by artist: Nerviozzo
by artist: Endikah
by artist: Blacka
in album: Pa Que Correr
  type: MusicAlbum
  date published: 2019-11-22
popularity: 3
isrc code: QMFME1912021
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:15:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5906a1b9b328e6f2f2f85a63b94bf6f32d364bf721cbbbe932df5d6fab00a2ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960337
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960337
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1912021
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:51:48Z
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 0x5906a1b9b328e6f2f2f85a63b94bf6f32d364bf721cbbbe932df5d6fab00a2ee. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QMFME1912021.
  date published: 2026-07-31T02:51:48Z
audio: Pa Que Correr
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 161.533
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.556
  additional property: Energy
    type: PropertyValue
    value: 0.856
  additional property: Speechiness
    type: PropertyValue
    value: 0.258
  additional property: Acousticness
    type: PropertyValue
    value: 0.027
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.941
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.775
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.592
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Sangre en el Papel
type: MusicRecording
duration: PT3M49S
duration ms: 229500
explicit: false
by artist: K.Libre.50
by artist: Accion Sanchez
by artist: Nerviozzo
by artist: Blacka
in album: Sangre en el Papel
  type: MusicAlbum
  date published: 2018-07-13
isrc code: ES71G1849086
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:11:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46edfe399d262c01a4d9d6d8585c3de79f087e0cbe2dc98e09480ab8341f638e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1849086
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
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 0x46edfe399d262c01a4d9d6d8585c3de79f087e0cbe2dc98e09480ab8341f638e. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES71G1849086.
  date published: 2026-07-31T23:30:38Z
audio: Sangre en el Papel
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.735
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.594
  additional property: Energy
    type: PropertyValue
    value: 0.974
  additional property: Speechiness
    type: PropertyValue
    value: 0.373
  additional property: Acousticness
    type: PropertyValue
    value: 0.017
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.396
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.766
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.009
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major