Fair Coordination

Bids, votes and draws no one can rig.

Building blocks for sealed submission, reveal at a deadline, commit-reveal, a randomness beacon and mutual-interest matching. Ordering and timing come from the log, and every result is receipted.

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Coordinate & prove · Works with Conditional Release, Verifiable Audit Log, Claims Engine · Same meters as every product

02 · Use case

Sealed-bid tenders nobody can peek at

Who it's for: Procurement teams and marketplaces.

Today

In a sealed-bid tender, whoever runs the system can see bids early, and suppliers have to trust that nobody peeked or moved the deadline.

With Fair Coordination

Bids are submitted sealed into attested nodes. The ordered log enforces the deadline, every bid opens at the same moment when it passes, and the result carries a receipt any bidder can check.

What you get

No bid visible to anyone, including the operator, before the deadline
A deadline nobody can move
A result every bidder can verify

03 · How it works

Four steps, all inside attested nodes.

01 · Submit
Bids or votes go in sealed; nobody can read them.
02 · Wait
The deadline is enforced by the ordered log, not a clock you trust.
03 · Reveal
Everything opens at once, for everyone.
04 · Prove
The result carries a receipt anyone can check.

04 · Built in

What it inherits from the engine.

Fair Coordination runs on the same confidential engine as every Calimero product, so it comes with the same proof.

Attested hardware. Clients verify the node's image before sending anything.
Sealed end to end. Nobody, including us, can read data inside a sealed node.
Signed receipts. Every answer can be checked offline, later, by anyone.

How we prove it All products

05 · More in Coordinate & prove

Works on the same engine.

See Fair Coordination running on attested hardware.

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