Silvia Calderoni
type: MusicGroup
popularity: 4
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x708b411e4eca63267674d3f94670ceb29c4eb3e336ba8f24d4da213d6a62aaca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbc35bc1-d02f-4a3b-91d0-84887b68d06f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbc35bc1-d02f-4a3b-91d0-84887b68d06f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbc35bc1-d02f-4a3b-91d0-84887b68d06f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x708b411e4eca63267674d3f94670ceb29c4eb3e336ba8f24d4da213d6a62aaca","name":"Silvia Calderoni","registered_at":"2026-06-21T04:51:51Z","symbol":"NIM1825287","token_address":"0xfcfc37cc70264637bbbc4eb854166f15527b2449","type":"artist","uuid":"dbc35bc1-d02f-4a3b-91d0-84887b68d06f"}
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 0x708b411e4eca63267674d3f94670ceb29c4eb3e336ba8f24d4da213d6a62aaca. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbc35bc1-d02f-4a3b-91d0-84887b68d06f.json and https://artists.proofprofile.net/proofs/artist/dbc35bc1-d02f-4a3b-91d0-84887b68d06f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0x708b411e4eca63267674d3f94670ceb29c4eb3e336ba8f24d4da213d6a62aaca","name":"Silvia Calderoni","registered_at":"2026-06-21T04:51:51Z","symbol":"NIM1825287","token_address":"0xfcfc37cc70264637bbbc4eb854166f15527b2449","type":"artist","uuid":"dbc35bc1-d02f-4a3b-91d0-84887b68d06f"}
track: SKIT - LA STANZA DELL'ARTE (feat. Silvia Calderoni)
  type: MusicRecording
  duration: PT1M1S
  duration ms: 61083
  explicit: false
  by artist: M¥SS KETA
  by artist: Silvia Calderoni
  in album: CLUB TOPPERIA
    type: MusicAlbum
    date published: 2022-05-26
  isrc code: ITUM72200731
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T00:22:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe8b2caa2b45c8a7c52acb2e950130fb206ba87f5a8ef6ffeedf3c09de428fe04
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956891
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956891
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM72200731
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T07:16:32Z
  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 0xe8b2caa2b45c8a7c52acb2e950130fb206ba87f5a8ef6ffeedf3c09de428fe04. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITUM72200731.
    date published: 2026-07-06T07:16:32Z
  audio: SKIT - LA STANZA DELL'ARTE (feat. Silvia Calderoni)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.444
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.544
    additional property: Energy
      type: PropertyValue
      value: 0.879
    additional property: Speechiness
      type: PropertyValue
      value: 0.339
    additional property: Acousticness
      type: PropertyValue
      value: 0.219
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.729
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.883
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.821
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor