KBA
type: MusicGroup
genre: portuguese hip hop
description: KBA may refer to: The Korea Basketball Association The Koenig & Bauer AG Knowledge-based authentication of a person accessing a service Kenn Borek Air, an airline based in Calgary, Alberta, Canada, IC
popularity: 16
followers: 9120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9336552943d5796904e6ccf3eacfd7f1173e56d9fd3703f2d4f98fc2bba9b4a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953754
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953754
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adb00ef5-ff55-4fd0-96cf-5baabdf934e0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/adb00ef5-ff55-4fd0-96cf-5baabdf934e0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/adb00ef5-ff55-4fd0-96cf-5baabdf934e0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:45:19Z
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 0x9336552943d5796904e6ccf3eacfd7f1173e56d9fd3703f2d4f98fc2bba9b4a9. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adb00ef5-ff55-4fd0-96cf-5baabdf934e0.json and https://artists.proofprofile.net/proofs/artist/adb00ef5-ff55-4fd0-96cf-5baabdf934e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:45:19Z
album: Buling
  type: MusicAlbum
  date published: 2012-10-23
album: Desde Sempre para Sempre
  type: MusicAlbum
  date published: 2013-04-20
  track: Pergunta Sem Resposta
    type: MusicRecording
    duration: PT4M48S
    duration ms: 288940
    explicit: false
    by artist: KBA
    in album: Desde Sempre para Sempre
      type: MusicAlbum
      date published: 2013-04-20
    genre: portuguese hip hop
    isrc code: USHM91344645
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T05:53:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb813fc7204af15fec21819ac15a9ebba17f7803a003e7c16469bf929f1b8147e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91344645
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xb813fc7204af15fec21819ac15a9ebba17f7803a003e7c16469bf929f1b8147e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM91344645.
      date published: 2026-07-04T10:04:33Z
    audio: Pergunta Sem Resposta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.992
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.501
      additional property: Energy
        type: PropertyValue
        value: 0.864
      additional property: Speechiness
        type: PropertyValue
        value: 0.273
      additional property: Acousticness
        type: PropertyValue
        value: 0.325
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.291
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.558
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.998
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Keli É Ka Nada Não
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238393
    explicit: false
    by artist: KBA
    in album: Desde Sempre para Sempre
      type: MusicAlbum
      date published: 2013-04-20
    genre: portuguese hip hop
    isrc code: USHM91344658
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T07:13:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x25041c24669ad0b43ce1c49095f9031a36b4e813efcce2327cbcdd4771334712
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958517
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958517
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91344658
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T07:54:29Z
    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 0x25041c24669ad0b43ce1c49095f9031a36b4e813efcce2327cbcdd4771334712. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USHM91344658.
      date published: 2026-07-18T07:54:29Z
    audio: Keli É Ka Nada Não
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.692
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.561
      additional property: Energy
        type: PropertyValue
        value: 0.677
      additional property: Speechiness
        type: PropertyValue
        value: 0.253
      additional property: Acousticness
        type: PropertyValue
        value: 0.328
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.088
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: THANK DA STREETS
album: Rich & Famous
album: Gun Walk

Valence (Positivity)
type: PropertyValue
value: 0.381

Loudness (dB)
type: PropertyValue
value: -9.085

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

THANK DA STREETS
type: MusicAlbum
date published: 2021-04-06

Rich & Famous
type: MusicAlbum
date published: 2021-10-26

Gun Walk
type: MusicAlbum
date published: 2022-01-11