Your privacy · Your chance · Your vault
The jackpot behind the veil.
A new era of private prize draws. Built around Zcash privacy, zero-knowledge proofs, and verifiable fairness.
Inside the vault
Private by design. Auditable by anyone.
Private jackpot vault
Prize pools, deadlines, eligibility, and entry requirements in one place. A draw is only marked funded once its balance is verified.
Zero-knowledge entry
Enter with a shielded Zcash transaction. Only a hiding commitment is published — never your address or entry history.
Verifiable fair draws
Frozen Merkle snapshots, a pre-committed operator seed, and a public randomness beacon. Anyone can recompute the winners.
Private prize claims
Prove you hold a winning credential, reveal a one-time nullifier, and receive the prize at a fresh shielded address.
Proof explorer
Draw IDs, commitment roots, randomness evidence, verification results, and protocol versions — all recomputed live.
Treasury transparency
Inflows, fees, allocations, and payouts reconciled to the zatoshi, without exposing any participant data.
Lifecycle of a draw
Six steps. No blind trust.
Zcash shielded transactions are not programmable smart contracts. ZecVault is explicit about which step runs on-chain, which runs off-chain, and how each one can be checked.
Read the architecture- 01Off-chain
Commit
Operator publishes a hash of its secret seed before any entry is accepted.
- 02Zcash
Enter
You send a shielded transaction with your entry commitment in the encrypted memo.
- 03Off-chain
Freeze
At the deadline, all commitments are sealed into a Merkle snapshot root.
- 04Public
Draw
Seed + future beacon round + snapshot root derive the randomness and winners.
- 05Verifier
Claim
Winners reveal a nullifier and a fresh shielded payout address.
- 06Zcash
Settle
The treasury pays out on Zcash and the ledger is reconciled.
Operating commitments
Cinematic on the surface. Honest underneath.
This build is a reference implementation running in demo mode. Every figure you see is generated by the same protocol code a production deployment would run — and labeled as simulated.
- We never ask for seed phrases or private keys.
- We never fabricate winners, balances, transaction hashes, or proof results.
- We do not claim complete anonymity or trustlessness.
- Real-money draws stay disabled until legal review and independent audits are complete.