Dj K9
type: MusicGroup
genre: brazilian phonk
popularity: 21
followers: 428
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe1d2fcd53015381d47ca966797b14d9eb661714b8e7116c6f6eec462fdb08761
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4406486-ec2e-4a1b-920a-9a638cb86464.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4406486-ec2e-4a1b-920a-9a638cb86464.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4406486-ec2e-4a1b-920a-9a638cb86464
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe1d2fcd53015381d47ca966797b14d9eb661714b8e7116c6f6eec462fdb08761","name":"Dj K9","registered_at":"2026-06-12T06:19:28Z","symbol":"NIM0212350","token_address":"0x5e94be166a76edc0f4647621234657c60554ba1d","type":"artist","uuid":"a4406486-ec2e-4a1b-920a-9a638cb86464"}
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 0xe1d2fcd53015381d47ca966797b14d9eb661714b8e7116c6f6eec462fdb08761. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4406486-ec2e-4a1b-920a-9a638cb86464.json and https://artists.proofprofile.net/proofs/artist/a4406486-ec2e-4a1b-920a-9a638cb86464.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xe1d2fcd53015381d47ca966797b14d9eb661714b8e7116c6f6eec462fdb08761","name":"Dj K9","registered_at":"2026-06-12T06:19:28Z","symbol":"NIM0212350","token_address":"0x5e94be166a76edc0f4647621234657c60554ba1d","type":"artist","uuid":"a4406486-ec2e-4a1b-920a-9a638cb86464"}
album: Vai Sentar Me Olhando
  type: MusicAlbum
  date published: 2025-10-02
  track: Vai Sentar Me Olhando
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164361
    explicit: false
    by artist: djalekoriginal
    by artist: Mc m12
    by artist: Dj K9
    by artist: Oliveira Mc 011
    in album: Vai Sentar Me Olhando
      type: MusicAlbum
      date published: 2025-10-02
    popularity: 40
    isrc code: BKF442500297
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-07T17:55:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa33573f1a0f5c1afb4ffbd27d80d5b523dfe8eb8ebe7911924940517386a522f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953515
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953515
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKF442500297
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T12:53:06Z
    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 0xa33573f1a0f5c1afb4ffbd27d80d5b523dfe8eb8ebe7911924940517386a522f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKF442500297.
      date published: 2026-06-13T12:53:06Z
    audio: Vai Sentar Me Olhando
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.335
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.87
      additional property: Energy
        type: PropertyValue
        value: 0.88
      additional property: Speechiness
        type: PropertyValue
        value: 0.336
      additional property: Acousticness
        type: PropertyValue
        value: 0.484
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.789
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.585
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 2G De Ice
  type: MusicAlbum
  date published: 2025-10-04
  track: 2G De Ice
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161086
    explicit: false
    by artist: Dj K9
    by artist: DJ NELHE
    by artist: MC ZL
    by artist: Mc m12
    in album: 2G De Ice
      type: MusicAlbum
      date published: 2025-10-04
    popularity: 27
    isrc code: BKF442500304
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-12T01:13:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3539d24e721555f883cb9fc2407ffc6554b08fd54c13bac2f1e7fe1ca23fbebc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953520
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953520
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKF442500304
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T13:32:09Z
    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 0x3539d24e721555f883cb9fc2407ffc6554b08fd54c13bac2f1e7fe1ca23fbebc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKF442500304.
      date published: 2026-06-13T13:32:09Z
    audio: 2G De Ice
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.427
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.952
      additional property: Energy
        type: PropertyValue
        value: 0.952
      additional property: Speechiness
        type: PropertyValue
        value: 0.276
      additional property: Acousticness
        type: PropertyValue
        value: 0.486
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
track: Bruxaria 777
track: Pula No Duro

Instrumentalness
type: PropertyValue
value: 0.159

Liveness
type: PropertyValue
value: 0.55

Valence (Positivity)
type: PropertyValue
value: 0.781

Loudness (dB)
type: PropertyValue
value: -7.576

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Bruxaria 777
type: MusicRecording
duration: PT2M4S
duration ms: 124919
explicit: false
by artist: DJ Bosak
by artist: DJ BONEKINHA IRAQUIANA
by artist: Dj K9
in album: Bruxaria 777
  type: MusicAlbum
  date published: 2024-03-08
isrc code: ESA112429449
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T02:59:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc49f841c4c16ef274426ef7e0599204b3c683ebe9eff98e7b8d33282dfb2ef68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA112429449
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0xc49f841c4c16ef274426ef7e0599204b3c683ebe9eff98e7b8d33282dfb2ef68. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ESA112429449.
  date published: 2026-07-02T03:30:09Z
audio: Bruxaria 777
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.455
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.759
  additional property: Energy
    type: PropertyValue
    value: 0.857
  additional property: Speechiness
    type: PropertyValue
    value: 0.281
  additional property: Acousticness
    type: PropertyValue
    value: 0.271
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.289
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.845
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.557
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pula No Duro
type: MusicRecording
duration: PT1M41S
duration ms: 101076
explicit: false
by artist: Dj K9
by artist: Digdin
by artist: Puccatsunami
in album: Pula No Duro
  type: MusicAlbum
  date published: 2025-05-09
isrc code: BKF442500127
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T00:43:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x345281bf412fb5b9094eb4a3df8c12e374fc9ff0323c560bf4bb297990b214e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKF442500127
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x345281bf412fb5b9094eb4a3df8c12e374fc9ff0323c560bf4bb297990b214e5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKF442500127.
  date published: 2026-06-13T13:32:09Z
audio: Pula No Duro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.38
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.911
  additional property: Energy
    type: PropertyValue
    value: 0.768
  additional property: Speechiness
    type: PropertyValue
    value: 0.268
  additional property: Acousticness
    type: PropertyValue
    value: 0.799
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.764
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.238
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major