Stefano Principini
type: MusicGroup
genre: medieval
popularity: 19
followers: 391
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x34639c513175b483fe3ff59d18c318ea63ad10cee2c5d98a57fb0e35258ec360
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953765
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc186e9a-80f7-474b-a1c0-da190fb31735.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc186e9a-80f7-474b-a1c0-da190fb31735.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc186e9a-80f7-474b-a1c0-da190fb31735
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:55:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x34639c513175b483fe3ff59d18c318ea63ad10cee2c5d98a57fb0e35258ec360","name":"Stefano Principini","registered_at":"2026-06-15T00:14:50Z","symbol":"NIM0621521","token_address":"0xd894b1bd69ce4affddc18f06867aa2bef05bd7dc","type":"artist","uuid":"bc186e9a-80f7-474b-a1c0-da190fb31735"}
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 0x34639c513175b483fe3ff59d18c318ea63ad10cee2c5d98a57fb0e35258ec360. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc186e9a-80f7-474b-a1c0-da190fb31735.json and https://artists.proofprofile.net/proofs/artist/bc186e9a-80f7-474b-a1c0-da190fb31735.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:55:24Z
  text: {"copyright_id":"0x34639c513175b483fe3ff59d18c318ea63ad10cee2c5d98a57fb0e35258ec360","name":"Stefano Principini","registered_at":"2026-06-15T00:14:50Z","symbol":"NIM0621521","token_address":"0xd894b1bd69ce4affddc18f06867aa2bef05bd7dc","type":"artist","uuid":"bc186e9a-80f7-474b-a1c0-da190fb31735"}
album: Legend - Mystic Itinerary
  type: MusicAlbum
  date published: 2009-11-22
album: Cantilena Della Vita Che Passa / Ancora Una Sera
  type: MusicAlbum
  date published: 2009-12-24
album: Roma Aeterna Splendens
  type: MusicAlbum
  date published: 2010-01-07
album: Humus
  type: MusicAlbum
  date published: 2010-01-26
album: La synphonia medievale (D'un bel matin d'amor)
  type: MusicAlbum
  date published: 2012-09-29
  track: Tempus Transit Gelidum
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218093
    explicit: false
    by artist: Stefano Principini
    in album: La synphonia medievale (D'un bel matin d'amor)
      type: MusicAlbum
      date published: 2012-09-29
    genre: medieval
    isrc code: IT00L1200039
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T10:09:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xae6f43e0b6326d520354273eb026bdbdd5d240b6def1740da59c5b59a26f4ad2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IT00L1200039
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xae6f43e0b6326d520354273eb026bdbdd5d240b6def1740da59c5b59a26f4ad2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IT00L1200039.
      date published: 2026-07-03T19:59:51Z
    audio: Tempus Transit Gelidum
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.005
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.631
      additional property: Energy
        type: PropertyValue
        value: 0.635
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.201
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.091
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.248
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.462
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major