CS206 · Research Prototype

Verifiable Commitment Game

Can cryptographic verification make strategic commitments trustworthy enough to sustain cooperation? This browser-only demonstration separates a mechanical guarantee—whether a reveal matches an earlier commitment—from behavioral claims about trust.

Static HTML · SHA-256 · no backend

Interactive round

1 · PlanPrivate action

2 · CommitLock digest

3 · RespondTrust / Protect

4 · RevealAction + nonce

5 · VerifyMatch?

Experimental condition

Round

1 of 6

Choose your private plan

Honor the agreementRelease compatible data and seek mutual value. Take the private gainWithhold useful data while benefiting from the partner.

Secret nonce

Combined with the private plan before hashing; it prevents trivial guessing when the action set is small.

Published commitment

Not locked yet.

Choose a plan and lock the round.

Live outcomes

50Provisional trust

0Your payoff

0Partner payoff

0Valid reveals

Public ledger

R	Condition	Partner	Reveal	Verified	Payoff
Verified round outcomes will appear here.

Scripted comparison

Run the fixed six-round validation used in the proposal. These are software checks, not participant evidence.