Public proof record 06 / DrEX

A semantic market program

The proof says “fair clear,” not “the exchange code ran.”

DrEX batches sealed orders, finds one uniform clearing price, and settles every admitted trade together.

Present scope: a running developer instance. Not public access, not real-value trading, and not independently audited.

01

The relation

Four claims traders actually care about.

Uniformity

One price for the batch

No privileged place at the front of the line; everyone clearing in the round receives the same price.

Limits

Orders remain sovereign

No buyer pays above its bid. No seller receives below its ask.

Conservation

The books still add up

Every asset entering one side of settlement leaves the other. Nothing appears or leaks.

Atomicity

The batch is one operation

The admitted transfers settle together, or the clear does not enter history.

02

Semantic compression

The solver searches. The proof checks the certificate.

commitSealed ordersorder roots
certifyFeasible optimumCert-F
enactAtomic settlementreceipt

The proof does not need to narrate how an optimizer found the answer. It checks the circulation certificate, exact integer admission, trader limits, objective gap, and state transition.

Privacy split: ordinary DrEX reveals at settlement. Dark Bazaar adds a fixed private-order Hiding relation. fhEgg explores FHE/MPC production where no single service begins with the clear book.

03

Readiness ledger

Mechanism present. Public market absent.

proven

Clearing and settlement semantics

Uniform price, conservation, limit respect, integer admission, and atomic settlement have machine-checked statements in the current system.

runs

Developer clear

A sealed batch can clear and settle through the proof-carrying turn path.

demo

Clickable local experience

Place an order, commit it, reveal, and watch the uniform-price result. No stable public destination is claimed here.

not public

Open access and real value

There is no public real-money exchange. Cross-chain real-value settlement remains separate unfinished work.

not audited

External review

The complete implementation has not had an independent security audit.