Banda Valkyria
type: MusicGroup
genre: forró
popularity: 5
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89288ff509fb7416b12de872257666720010c88f35f7c1eb320a84b58a99a3ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0fd6a18e-14f2-4eeb-ba05-7a895af328b9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0fd6a18e-14f2-4eeb-ba05-7a895af328b9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0fd6a18e-14f2-4eeb-ba05-7a895af328b9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x89288ff509fb7416b12de872257666720010c88f35f7c1eb320a84b58a99a3ca","name":"Banda Valkyria","registered_at":"2026-06-15T19:19:19Z","symbol":"NIM0806417","token_address":"0x4c66a95933ebe9cf49a3f4725e5c6a9b3101edc7","type":"artist","uuid":"0fd6a18e-14f2-4eeb-ba05-7a895af328b9"}
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 0x89288ff509fb7416b12de872257666720010c88f35f7c1eb320a84b58a99a3ca. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fd6a18e-14f2-4eeb-ba05-7a895af328b9.json and https://artists.proofprofile.net/proofs/artist/0fd6a18e-14f2-4eeb-ba05-7a895af328b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x89288ff509fb7416b12de872257666720010c88f35f7c1eb320a84b58a99a3ca","name":"Banda Valkyria","registered_at":"2026-06-15T19:19:19Z","symbol":"NIM0806417","token_address":"0x4c66a95933ebe9cf49a3f4725e5c6a9b3101edc7","type":"artist","uuid":"0fd6a18e-14f2-4eeb-ba05-7a895af328b9"}
album: Especial de São João
  type: MusicAlbum
  date published: 2022-08-06
  track: Verdadeiro Amor
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192624
    explicit: false
    by artist: Banda Valkyria
    in album: Especial de São João
      type: MusicAlbum
      date published: 2022-08-06
    genre: forró
    isrc code: QZNJY2247247
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T05:28:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0a8e33d5782cc0bf58b034d17caa1f450a0fadf44ca288ca3d926b0a57959534
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958106
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958106
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2247247
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T05:35:13Z
    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 0x0a8e33d5782cc0bf58b034d17caa1f450a0fadf44ca288ca3d926b0a57959534. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZNJY2247247.
      date published: 2026-07-15T05:35:13Z
    audio: Verdadeiro Amor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.009
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.593
      additional property: Energy
        type: PropertyValue
        value: 0.729
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.37
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.012
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.823
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.074
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major