Roberta Soprano
type: MusicGroup
popularity: 3
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e1f019ff04fa4ff0c6e61f8fb51f4b4f64bebf7e5b9ab7d008b10f6c9c5be04
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d78cba3-e32b-4fb9-806c-e583c949f724.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d78cba3-e32b-4fb9-806c-e583c949f724.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d78cba3-e32b-4fb9-806c-e583c949f724
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e1f019ff04fa4ff0c6e61f8fb51f4b4f64bebf7e5b9ab7d008b10f6c9c5be04","name":"Roberta Soprano","registered_at":"2026-06-20T04:27:19Z","symbol":"NIM1511906","token_address":"0xf0e2f8c69554aef61c3efd3e0d4f693fb7d0b766","type":"artist","uuid":"9d78cba3-e32b-4fb9-806c-e583c949f724"}
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 0x1e1f019ff04fa4ff0c6e61f8fb51f4b4f64bebf7e5b9ab7d008b10f6c9c5be04. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d78cba3-e32b-4fb9-806c-e583c949f724.json and https://artists.proofprofile.net/proofs/artist/9d78cba3-e32b-4fb9-806c-e583c949f724.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x1e1f019ff04fa4ff0c6e61f8fb51f4b4f64bebf7e5b9ab7d008b10f6c9c5be04","name":"Roberta Soprano","registered_at":"2026-06-20T04:27:19Z","symbol":"NIM1511906","token_address":"0xf0e2f8c69554aef61c3efd3e0d4f693fb7d0b766","type":"artist","uuid":"9d78cba3-e32b-4fb9-806c-e583c949f724"}
album: L'esistenza
  type: MusicAlbum
  date published: 2017-08-01
  track: L'esistenza
    type: MusicRecording
    duration: PT4M13S
    duration ms: 253317
    explicit: false
    by artist: Roberta Soprano
    in album: L'esistenza
      type: MusicAlbum
      date published: 2017-08-01
    isrc code: ITZ811700235
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T17:16:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4356d44ee3e04946d935b8db4f6fa273b86bf500196d7844ffe06e8a5cc751d5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958917
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958917
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITZ811700235
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T20:19:36Z
    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 0x4356d44ee3e04946d935b8db4f6fa273b86bf500196d7844ffe06e8a5cc751d5. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:19:36Z), 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/ITZ811700235.
      date published: 2026-07-20T20:19:36Z
    audio: L'esistenza
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.042
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.588
      additional property: Energy
        type: PropertyValue
        value: 0.662
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.122
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.154
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.387
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.397
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major