Alvaro Malta
type: MusicGroup
genre: opera
popularity: 8
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1b654825f469e3478a5d5ec6129dac6f970ca383fba20df1c5c60e5d6bc277f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b614b994-230e-4e46-80f2-a5566fb48d26.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b614b994-230e-4e46-80f2-a5566fb48d26.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b614b994-230e-4e46-80f2-a5566fb48d26
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1b654825f469e3478a5d5ec6129dac6f970ca383fba20df1c5c60e5d6bc277f9","name":"Alvaro Malta","registered_at":"2026-06-20T14:36:04Z","symbol":"NIM1632502","token_address":"0xe60e5c3ab5859ffaa3dba68e91cc576266387a56","type":"artist","uuid":"b614b994-230e-4e46-80f2-a5566fb48d26"}
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 0x1b654825f469e3478a5d5ec6129dac6f970ca383fba20df1c5c60e5d6bc277f9. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b614b994-230e-4e46-80f2-a5566fb48d26.json and https://artists.proofprofile.net/proofs/artist/b614b994-230e-4e46-80f2-a5566fb48d26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x1b654825f469e3478a5d5ec6129dac6f970ca383fba20df1c5c60e5d6bc277f9","name":"Alvaro Malta","registered_at":"2026-06-20T14:36:04Z","symbol":"NIM1632502","token_address":"0xe60e5c3ab5859ffaa3dba68e91cc576266387a56","type":"artist","uuid":"b614b994-230e-4e46-80f2-a5566fb48d26"}
track: La Traviata: Libiamo, ne' lieti calici (Brindisi)
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193773
  explicit: false
  by artist: Laura Zanini
  by artist: Vito Susca
  by artist: Orquesta Sinfonica del Teatro Nacional de Santa Carlos, Lisboa
  by artist: Alvaro Malta
  by artist: Alessandro Maddalena
  by artist: Alfredo Kraus
  by artist: Franco Ghione
  by artist: Piero de Palma
  by artist: Coro del Teatro Nacional de Santa Carlos, Lisboa
  by artist: Maria Callas
  in album: Romantic Callas
    type: MusicAlbum
    date published: 2001
  isrc code: GBAYC9702897
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T02:23:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6edad35cd87d8a936c5e21c0b177185695457307930d0217fcdf189d893fe166
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9702897
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0x6edad35cd87d8a936c5e21c0b177185695457307930d0217fcdf189d893fe166. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC9702897.
    date published: 2026-07-02T03:30:09Z
  audio: La Traviata: Libiamo, ne' lieti calici (Brindisi)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 96.038
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.374
    additional property: Energy
      type: PropertyValue
      value: 0.241
    additional property: Speechiness
      type: PropertyValue
      value: 0.087
    additional property: Acousticness
      type: PropertyValue
      value: 0.982
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.141
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.434
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.592
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major