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Quorum

Self-hosted · runs offline · open source

Every project judged. Every tie decided. Every team answered.

Quorum runs a hackathon from the first registration to published results. It keeps every project reviewed while judges work asynchronously, and it spends spare judge time only where a prize is still in doubt. It says so when a podium is really a tie. It sends every team its scorecard, and shows its working on every number.

How Quorum shows a ranking Six projects, each with the range of places it could plausibly finish. The top three ranges overlap, so first to third is a statistical tie that a pre-registered head-to-head round decides. statistical tie for 1st–3rd Lighthouse Tidepool Relay Cobalt Quarry Juniper 1st3rd6th10th
Illustration. Every project gets a range, not just a rank. Where ranges overlap at a prize, Quorum says it is a tie and settles it on the record.

Try it as…

Demo mode: one click signs you in as a seeded account. Production mode refuses to start while these exist.

Organizer

Run Sample Hack 2026: stalled judges, a statistical tie, feedback coverage, results.

Judge

Work through a batch in the keyboard-first console; compare pairs; get a signed protocol.

Participant

See your team, your submission and, once results are out, your scorecard.

One event, start to finish

  1. CreateDates, tracks, prizes and a weighted rubric, locked and hashed before anyone registers.
  2. SubmitTeams join by invite link and draft with autosave. The deadline holds, down to the database.
  3. JudgeBatches of 10–12, a keyboard-first console, and reminders. Work is reassigned when a judge stalls.
  4. DecideCalibrated scores with their uncertainty. Focus rounds, and head-to-head tie-breaks.
  5. PublishScorecards and feedback for every team, plus signed protocols and certificates.

Judging that finishes

Every project reaches its review target. Stalled batches are spotted and reassigned in one click, and judges are reminded before they fall behind.

Time spent where it matters

After the first round, extra reviews go only to projects whose prize is still uncertain. The same judge hours buy better decisions.

Fair, and it shows its working

Harsh and generous judges are evened out, and the per-judge adjustments are shown. Ties are named, not hidden.

Every team answered

A feedback guarantee, then a scorecard for every team, placed or not. Judges get signed, numbered protocols.

Published method
every formula, and why
Verify any record
Ed25519, in your browser
Everything has an API
OpenAPI 3, served offline
Public signing keys
retired keys stay listed
↑ ↓ move↵ openesc close answers come only from your event's data