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ZKFLASH
Robinhood Chain

Lab

Generate a real proof in your browser, watch each stage, then check it. Nothing you type leaves this device.

Robinhood Chain · 4663 · proofs run locally
Circuits4
Planned

Uploading your own circuit is planned, not built. This lab runs the four bundled ones.

Hash opening

UltraHonk (EVM target) · 946 gates

Statement

The prover knows two field elements whose Poseidon hash equals the public digest.

Reveals
The digest.
Keeps out of the proof
The two values, as long as they are hard to guess.
Does not prove
Who the prover is, or where the digest came from.
ResultNo run yet
Preparation—
Witness—
Proving—
Verification—

Measured on this browser and device, one prover thread. Your next run or another machine will differ, and this is not a benchmark.

Proof size
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Public inputs
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Expected
Verified
Proof generator

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Private values stay in the worker. The bundled circuits are test material: do not put real secrets in them.