Provn Confidential Verification: prove an XRPL payment without revealing it

Описание: Provn anchors proof that an XRPL payment happened. Today those proofs
include the amount, the parties and the destination tag in cleartext,
permanently, on a public chain. Anyone auditing a proof also learns the
commercial terms behind it.

Built for Flare Summer Signal, this moves the verification into a
hardware-isolated TEE on Flare Confidential Compute. A client encrypts
what it expects (from, to, amount, destination tag) along with an XRPL
transaction hash. The enclave fetches the transaction, checks it
privately, and returns only the result: authentic or not, a reason, and
a cryptographic commitment to the values it checked.

The amounts and parties never touch the chain. A verifier can confirm a
payment matched its terms without learning what those terms were.

What we built for the program:
The XRPL verifier ported into the enclave, with the eligibility gate
(validated, tesSUCCESS, Payment, native XRP) and per-field expectation
checks
ProvnRegistry.sol, which routes encrypted expectations to the TEE and
records only the commitment and the verdict on-chain
30 tests covering the verifier, the handler and the contract, asserting
the result leaks no raw amounts or parties

Demo: https://useprovn.io/fcc/
Provn: https://useprovn.io

Bounty 2 (Confidential Compute Apps), Bounty 1 (Interoperable Asset Products)
Team: Burst Labs