nova-zk-identity-verifier

;; Nova ZK Identity Verifier
;; Verifies Zero-Knowledge proofs for identity assertions

(define-constant ERR-INVALID-PROOF (err u100))

(define-map verified-proofs
    { proof-hash: (buff 32) }
    { verifier: principal, timestamp: uint }
)

;; Mock ZK verification function
;; In production, this would implement actual zk-SNARK or zk-STARK verification logic
(define-public (verify-identity-proof (proof (buff 128)) (public-inputs (list 10 uint)))
    (let
        (
            (proof-hash (sha256 proof))
        )
        ;; For demo purposes, we accept any proof that hashes to a simplified value
        ;; This is a placeholder for real cryptographic verification
        (map-set verified-proofs
            { proof-hash: proof-hash }
            { verifier: tx-sender, timestamp: block-height }
        )
        (ok true)
    )
)

(define-read-only (is-proof-verified (proof-hash (buff 32)))
    (is-some (map-get? verified-proofs { proof-hash: proof-hash }))
)