zero-knowledge-proofs

;; Zero-Knowledge Proofs
;; Verify claims without revealing data

(define-data-var next-proof-id uint u1)

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

(define-read-only (get-proof (proof-id uint))
  (map-get? proofs proof-id)
)

(define-public (submit-proof (proof-hash (buff 32)))
  (let ((proof-id (var-get next-proof-id)))
    (map-set proofs proof-id {
      prover: tx-sender,
      proof-hash: proof-hash,
      verified: false,
      verifier: none
    })
    (var-set next-proof-id (+ proof-id u1))
    (ok proof-id)
  )
)

(define-public (verify-proof (proof-id uint))
  (let ((proof (unwrap! (map-get? proofs proof-id) (err u100))))
    (map-set proofs proof-id (merge proof {
      verified: true,
      verifier: (some tx-sender)
    }))
    (ok true)
  )
)