Company Pitches

on YouTube ↗05m

" summary

Zcash runs a deployed private-payments network with about a billion dollars of value secured by zk-SNARK constructions over Merkle-tree commitments and SHA-256-based nullifiers that caused large circuits. A planned September upgrade removes the heavy SHA-256 primitives and the bn128 curve, shrinks circuit size, and swaps in faster hashes and curves. Measured gains cut worst-case proving time from ~40 seconds to ~2 seconds and verification to ~5–7 milliseconds, while keeping the Merkle-path and balance proofs intact.

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