A Nona
type: MusicGroup
genre: brazilian rock
popularity: 5
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb88c7f7fe75580c86d62d28ea802fc1bec1d4c127f27825d0a0cb0af91d5e3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dac42d08-a6eb-4ff0-a1da-53c2e73df3de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dac42d08-a6eb-4ff0-a1da-53c2e73df3de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dac42d08-a6eb-4ff0-a1da-53c2e73df3de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb88c7f7fe75580c86d62d28ea802fc1bec1d4c127f27825d0a0cb0af91d5e3c","name":"A Nona","registered_at":"2026-06-21T04:25:18Z","symbol":"NIM1818935","token_address":"0xbbbcd9ae3ea9e7ca7198615687e8c8d14378bae2","type":"artist","uuid":"dac42d08-a6eb-4ff0-a1da-53c2e73df3de"}
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 0xdb88c7f7fe75580c86d62d28ea802fc1bec1d4c127f27825d0a0cb0af91d5e3c. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dac42d08-a6eb-4ff0-a1da-53c2e73df3de.json and https://artists.proofprofile.net/proofs/artist/dac42d08-a6eb-4ff0-a1da-53c2e73df3de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xdb88c7f7fe75580c86d62d28ea802fc1bec1d4c127f27825d0a0cb0af91d5e3c","name":"A Nona","registered_at":"2026-06-21T04:25:18Z","symbol":"NIM1818935","token_address":"0xbbbcd9ae3ea9e7ca7198615687e8c8d14378bae2","type":"artist","uuid":"dac42d08-a6eb-4ff0-a1da-53c2e73df3de"}
album: Compacto 01
  type: MusicAlbum
  date published: 2024-09-20
  track: Bon Vivant
    type: MusicRecording
    duration: PT4M9S
    duration ms: 249677
    explicit: false
    by artist: A Nona
    in album: Compacto 01
      type: MusicAlbum
      date published: 2024-09-20
    genre: brazilian rock
    isrc code: BC2C82400001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T16:04:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x11a0477a81f3abc858e68b6c64845f2410744885231f86e294fc15dca478b507
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC2C82400001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0x11a0477a81f3abc858e68b6c64845f2410744885231f86e294fc15dca478b507. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BC2C82400001.
      date published: 2026-07-05T04:47:21Z
    audio: Bon Vivant
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.105
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.737
      additional property: Energy
        type: PropertyValue
        value: 0.32
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.778
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.074
      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.211
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.64
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Compacto 02
  type: MusicAlbum
  date published: 2024-10-25
album: Compacto 03
  type: MusicAlbum
  date published: 2024-11-29
album: Compacto 04
  type: MusicAlbum
  date published: 2024-12-30