Alessandro Varzi
type: MusicGroup
popularity: 17
followers: 365
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2f75156e61e196bc4f915c50ee171fdb993ae6c2f39860b0a1d54a6864b4976
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0a5f9c3-8df4-4141-b00b-eca57fa5fe12.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d0a5f9c3-8df4-4141-b00b-eca57fa5fe12.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d0a5f9c3-8df4-4141-b00b-eca57fa5fe12
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf2f75156e61e196bc4f915c50ee171fdb993ae6c2f39860b0a1d54a6864b4976","name":"Alessandro Varzi","registered_at":"2026-06-15T02:21:59Z","symbol":"NIM0651922","token_address":"0xefb0fba22c29cf68a11fe8aa10f098942e7a872d","type":"artist","uuid":"d0a5f9c3-8df4-4141-b00b-eca57fa5fe12"}
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 0xf2f75156e61e196bc4f915c50ee171fdb993ae6c2f39860b0a1d54a6864b4976. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0a5f9c3-8df4-4141-b00b-eca57fa5fe12.json and https://artists.proofprofile.net/proofs/artist/d0a5f9c3-8df4-4141-b00b-eca57fa5fe12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0xf2f75156e61e196bc4f915c50ee171fdb993ae6c2f39860b0a1d54a6864b4976","name":"Alessandro Varzi","registered_at":"2026-06-15T02:21:59Z","symbol":"NIM0651922","token_address":"0xefb0fba22c29cf68a11fe8aa10f098942e7a872d","type":"artist","uuid":"d0a5f9c3-8df4-4141-b00b-eca57fa5fe12"}
album: Good-Bye
  type: MusicAlbum
  date published: 1993-01-01
album: American Legend (USA Feel Good Classic Rock)
  type: MusicAlbum
  date published: 2012-11-26
album: Pop Harmonica
  type: MusicAlbum
  date published: 2012-12-05
album: Harmonic World
  type: MusicAlbum
  date published: 2017-10-25
album: Regioni D'Italia, Vol. 1 (Ethnic line)
  type: MusicAlbum
  date published: 2019-06-04