Ledger
Remember what worked, what didn't, and why.
Ledger is the workspace's decision memory. Decisions carry a pre-registered expectation written before the evidence arrives; evidence settles them into lessons; lessons collect into the beliefs a team actually holds. zv1 is the scribe: it notices decisions in conversation and records them behind your approval, so the memory fills itself.
The pieces Ledger gives you.

Decisions with pre-registered expectations
written before the evidence, settled against it

Lessons and observations captured in seconds, straight into the shared record

The beliefs page
what the workspace currently knows, each belief citing its entries

zv1 as scribe
consult before acting, record as decisions happen, settle when evidence lands
Decide. Expect. Settle. Know.
Ledger has one loop: record the decision with its expectation, let the evidence arrive, settle it into a lesson. Each pass gives you more to draw on for the next decision.
A decision happens
In a tool, in a meeting, in a hallway. Most companies let it evaporate. Here it becomes an entry: what you did, why, and what you expect to happen.
The expectation is written first
A number and a date, recorded before the evidence exists. You write the prediction down before the results arrive.
zv1 does the writing
Say the decision out loud and the assistant offers to record it, drafting the entry from the conversation that produced it, behind your approval. You approve it instead of filling in a form.
Evidence settles it
Caliper runs, observations, outcomes. When the data answers the expectation, you settle the entry and write the lesson while it's fresh. It's recorded once and kept.
Beliefs compound
Settled lessons collect into what the workspace knows, each belief citing the entries behind it. A new teammate can read it to get up to speed.
What does your operation actually know?
A record of what the company decided, what it expected, and what turned out to be true. Ledger keeps it. Part of every ZeroWidth workspace.