Sidereal · Commitments · Pilot
Before money moves, each program gets a written commitment: the result, how it is measured, the starting point, the target and date, and who owns it. Sidereal tracks delivery and results against it.
The commitment
Drafted from the proposal and the model, then agreed by the city and whoever delivers the program.
- Result
- What the program should change, in plain words
- Measure
- The figure that shows it, with its source
- Starting point
- Where that figure stands before the money moves
- Comparison
- Similar places the program will not reach
- Target and date
- Where it should be, and by when
- Owner
- The department or provider responsible
- Milestones
- What has to happen along the way
- Status
- Delivery and results: on track, at risk or off track
Capabilities
Commitments before money moves
The result, the measure, the starting point, the comparison places, the target and date, the owner and the milestones, agreed by the city and whoever delivers the program.
Delivery and results, tracked
Every commitment marked on track, at risk or off track, for delivery and for results. Owners update milestones by answering a few short questions.
A monthly leadership pack
What moved, what is behind and who owns it, ready for leadership and council.
Paying for results
Where the city chooses, part of a contract is paid when the measured result moves, with Polisynth as the neutral referee.
Questions
- Is this program delivering what it promised?
- Which commitments are falling behind, and who owns them?
- What should this contract pay for?
Getting started
- First
Commitments already made
Targets in budget books, strategic plans, federal recovery project goals and council resolutions, and where each one stands.
- Then
The city's own initiatives
The city adds its initiatives, and owners keep them current by answering short questions.
- Then
Paying for results
Contracts where part of the payment depends on the measured result.
Sidereal is in pilot. It tracks programs and the commitments made for them; it never rates individual employees. It is named for sidereal time, which is measured against the fixed stars rather than the moving sun.
On the same model

Platform
Zenith
Gathers a city's public data into one model.
Budgets, council records, service requests, state and federal data and satellite imagery, matched to every block and month, with an estimate for each measure from past years to the present.
Explore Zenith
Simulation Pilot
Parallax
Tests proposals on synthetic residents before funding.
Compare a proposed program with its alternatives on stand-in residents built from census data and the city's model, before any money is committed.
Explore Parallax
AI analysts
Meridian
Answers questions, diagnoses departments and evaluates programs.
Staff ask in their own words and get an answer in seconds, with the source, the period and how certain it is.
Explore Meridian