Mariantonia Castaldo
type: MusicGroup
genre: neomelodico
popularity: 8
followers: 137
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc21023a33213aca643cc5d608de6565b33c026f8279112dd9b9594918ef984ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae6522cf-ec5e-4d48-949f-b95b0ae41a78.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae6522cf-ec5e-4d48-949f-b95b0ae41a78.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ae6522cf-ec5e-4d48-949f-b95b0ae41a78
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc21023a33213aca643cc5d608de6565b33c026f8279112dd9b9594918ef984ce","name":"Mariantonia Castaldo","registered_at":"2026-06-20T10:37:15Z","symbol":"NIM1594137","token_address":"0x958076e23d403349f68e806a2154e71c23602c08","type":"artist","uuid":"ae6522cf-ec5e-4d48-949f-b95b0ae41a78"}
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 0xc21023a33213aca643cc5d608de6565b33c026f8279112dd9b9594918ef984ce. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae6522cf-ec5e-4d48-949f-b95b0ae41a78.json and https://artists.proofprofile.net/proofs/artist/ae6522cf-ec5e-4d48-949f-b95b0ae41a78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0xc21023a33213aca643cc5d608de6565b33c026f8279112dd9b9594918ef984ce","name":"Mariantonia Castaldo","registered_at":"2026-06-20T10:37:15Z","symbol":"NIM1594137","token_address":"0x958076e23d403349f68e806a2154e71c23602c08","type":"artist","uuid":"ae6522cf-ec5e-4d48-949f-b95b0ae41a78"}
album: Io sono libera
  type: MusicAlbum
  date published: 2016-12-02
album: Tu y - Yo
  type: MusicAlbum
  date published: 2021-08-13
album: Si nun tenesse a te
  type: MusicAlbum
  date published: 2024-12-01
album: Danzano i Colori ( canzone natalizia)
  type: MusicAlbum
  date published: 2024-12-04
album: Ancor ancor ancor ( in napoletano)
  type: MusicAlbum
  date published: 2024-12-05
album: Proibito ( salsa napoletana )
  type: MusicAlbum
  date published: 2025-02-03
album: Filo rosso (in napoletano )
  type: MusicAlbum
  date published: 2025-02-06
album: Sally in Napoletano
  type: MusicAlbum
  date published: 2025-02-07
album: In Napoletano
  type: MusicAlbum
  date published: 2025-03-21
  track: E penso a te
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197646
    explicit: false
    by artist: Mariantonia Castaldo
    in album: In Napoletano
      type: MusicAlbum
      date published: 2025-03-21
    genre: neomelodico
    isrc code: TCAJK2588578
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T22:59:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb7f5a2a38ff7ab53bf974ca60a6aa90b9446d9918d6a32283567a81ff2b16830
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJK2588578
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:12:51Z
    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 0xb7f5a2a38ff7ab53bf974ca60a6aa90b9446d9918d6a32283567a81ff2b16830. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:12:51Z), 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/TCAJK2588578.
      date published: 2026-07-17T02:12:51Z
    audio: E penso a te
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 156.002
      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: 0.64
      additional property: Energy
        type: PropertyValue
        value: 0.725
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.309
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.289
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.689
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.812
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Unchained Melody in Napoletano DEMO
  type: MusicAlbum
  date published: 2025-05-22
album: Siamo in due e siamo in tre
  type: MusicAlbum
  date published: 2025-07-22
album: Nnamurata a meta
  type: MusicAlbum
  date published: 2025-09-15
album: La cura per me (in Napoletano)
  type: MusicAlbum
  date published: 2025-09-18
album: Nun M'Accarezza'
  type: MusicAlbum
  date published: 2025-10-27