Alexandra Nicolas
type: MusicGroup
genre: tecnobrega
popularity: 3
followers: 233
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6873c95dd01dcf6f4e49e70ae3777a522345cdedd588008977f638b4def78549
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/610a8653-11b9-42de-a88a-4fb61f3085ec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/610a8653-11b9-42de-a88a-4fb61f3085ec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/610a8653-11b9-42de-a88a-4fb61f3085ec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6873c95dd01dcf6f4e49e70ae3777a522345cdedd588008977f638b4def78549","name":"Alexandra Nicolas","registered_at":"2026-06-16T23:21:13Z","symbol":"NIM1207807","token_address":"0xe4f4f02503dc3f70799f25ebd54fba2ffe8a8405","type":"artist","uuid":"610a8653-11b9-42de-a88a-4fb61f3085ec"}
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 0x6873c95dd01dcf6f4e49e70ae3777a522345cdedd588008977f638b4def78549. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/610a8653-11b9-42de-a88a-4fb61f3085ec.json and https://artists.proofprofile.net/proofs/artist/610a8653-11b9-42de-a88a-4fb61f3085ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x6873c95dd01dcf6f4e49e70ae3777a522345cdedd588008977f638b4def78549","name":"Alexandra Nicolas","registered_at":"2026-06-16T23:21:13Z","symbol":"NIM1207807","token_address":"0xe4f4f02503dc3f70799f25ebd54fba2ffe8a8405","type":"artist","uuid":"610a8653-11b9-42de-a88a-4fb61f3085ec"}
album: Festejos
  type: MusicAlbum
  date published: 2012-08-14
album: Coco Fulero
  type: MusicAlbum
  date published: 2018-03-02
album: Feita na Pimenta
  type: MusicAlbum
  date published: 2018-03-23
album: A Dona do Fuxico
  type: MusicAlbum
  date published: 2021-11-05
  track: A Dona do Fuxico
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203339
    explicit: false
    by artist: Alexandra Nicolas
    in album: A Dona do Fuxico
      type: MusicAlbum
      date published: 2021-11-05
    genre: tecnobrega
    isrc code: BX1S72100001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T16:34:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbca8b8c79ade4807253f2d11ed8f99256c9b9ed3f7d3da0d724395e4596ad330
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX1S72100001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xbca8b8c79ade4807253f2d11ed8f99256c9b9ed3f7d3da0d724395e4596ad330. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BX1S72100001.
      date published: 2026-07-05T01:12:41Z
    audio: A Dona do Fuxico
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.003
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.73
      additional property: Energy
        type: PropertyValue
        value: 0.915
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.198
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.848
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.21
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Xaxarimbó
  type: MusicAlbum
  date published: 2024-07-26