Samba K
type: MusicGroup
genre: pagode
genre: samba
popularity: 5
followers: 69
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa941649144e1c9fc7008f376d97dbac6780baca9b90b01093d608760e487e3e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcfa991c-b1a4-44ad-881c-c394cc3cc674.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcfa991c-b1a4-44ad-881c-c394cc3cc674.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bcfa991c-b1a4-44ad-881c-c394cc3cc674
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa941649144e1c9fc7008f376d97dbac6780baca9b90b01093d608760e487e3e","name":"Samba K","registered_at":"2026-06-20T17:39:19Z","symbol":"NIM1670336","token_address":"0x7f0db277adb6a590e62cf4ad7d03d20551ae3e5e","type":"artist","uuid":"bcfa991c-b1a4-44ad-881c-c394cc3cc674"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa941649144e1c9fc7008f376d97dbac6780baca9b90b01093d608760e487e3e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcfa991c-b1a4-44ad-881c-c394cc3cc674.json and https://artists.proofprofile.net/proofs/artist/bcfa991c-b1a4-44ad-881c-c394cc3cc674.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xfa941649144e1c9fc7008f376d97dbac6780baca9b90b01093d608760e487e3e","name":"Samba K","registered_at":"2026-06-20T17:39:19Z","symbol":"NIM1670336","token_address":"0x7f0db277adb6a590e62cf4ad7d03d20551ae3e5e","type":"artist","uuid":"bcfa991c-b1a4-44ad-881c-c394cc3cc674"}
album: É Gostoso te Amar
  type: MusicAlbum
  date published: 1995-08-12
  track: É gostoso te amar
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192453
    explicit: false
    by artist: Samba K
    in album: É Gostoso te Amar
      type: MusicAlbum
      date published: 1995-08-12
    genre: pagode
    genre: samba
    isrc code: BR03D2300252
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:51:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0a3a021908d8944de05bdfddf7331bd6ec32da40875af1db034cb499b541527a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR03D2300252
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3a021908d8944de05bdfddf7331bd6ec32da40875af1db034cb499b541527a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BR03D2300252.
      date published: 2026-07-05T10:59:37Z
    audio: É gostoso te amar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.489
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.449
      additional property: Energy
        type: PropertyValue
        value: 0.797
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.231
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.356
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.875
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.208
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Sempre assim
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217453
    explicit: false
    by artist: Samba K
    in album: É Gostoso te Amar
      type: MusicAlbum
      date published: 1995-08-12
    genre: pagode
    genre: samba
    isrc code: BR03D2300251
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T14:51:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x790923d914a3586295750383c596c5b04fb6960d58ad9a55c589c07442e1be53
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR03D2300251
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:53:28Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790923d914a3586295750383c596c5b04fb6960d58ad9a55c589c07442e1be53. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:53:28Z), 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/BR03D2300251.
      date published: 2026-07-19T17:53:28Z
    audio: Sempre assim
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.693
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.647
      additional property: Energy
        type: PropertyValue
        value: 0.675
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.046
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.275
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: O Melhor de Samba K

Valence (Positivity)
type: PropertyValue
value: 0.682

Loudness (dB)
type: PropertyValue
value: -9.15

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

O Melhor de Samba K
type: MusicAlbum
date published: 2001-06-10