A drawing register with supersession and the RFI trail
What drawing register looks like on a governed record, and the checks a reader can run for themselves.
Drawing register is the kind of thing a construction project usually argues about after the fact, from memory, with the evidence spread across inboxes and spreadsheets. CONSTRUX treats it as a record: every change to it is an append-only, hash-chained event on the golden thread, written before it is acknowledged, so the question "what did we know, and when" has an answer rather than an opinion.
Where it goes wrong
The failure is rarely a missing number. It is a number that exists in three places and agrees in none of them — the site diary, the commercial report and the board paper each telling a slightly different story about drawing register, with nobody able to say which was true on the day it mattered. By the time the disagreement surfaces it is a dispute rather than a decision, and a dispute is priced by whoever kept the better record.
How CONSTRUX handles it
Drawings, revisions and the RFI that came from a markup. A drawing register with supersession, markups that become RFIs, and model records carrying hash, discipline and LOD — an IFC read for its structure and a geometry fingerprint per element, revisions compared by GlobalId. Quantities are governed and priced against the sheet, revision or bill they came from, and a bill’s rows come off the PDF as rows.
A Golden Thread that detects its own tampering. Every state change is an append-only hash-chained event, journalled before it is acknowledged and shipped to Postgres behind that, where a standby can follow it live. Replay reconstructs the project from its own history and reports a root hash — so "has this record been altered" has an answer, not an opinion.
The agents watch the project; you decide. Eight agents read programme, cost, risk, contracts, design, field, handover and tender data continuously, and raise what they think should happen next — each with the records it read and what happens if you decline. Nothing runs until a nominated approver approves it.
A record you can replay is a record you can rely on.
What you can check for yourself
None of this asks for trust. Replay reconstructs a project from its own history and reports a root hash; a document issued from the platform carries a content hash that lets anybody verify a document against what was issued; and every AI-assisted step names the engine that produced it and the records it read. If drawing register matters on your projects, the demo environment runs the whole cycle on a seeded programme — open it, run it, and read the record it leaves behind.
See the record being made rather than described.
Launch the demo environment