CRA reports have an early warning, a 72-hour notice, and a final report. Article 14 says the later stages need not repeat key facts the maker already gave.

Use one proof trail with three filed copies. A later stage should add to or fix the record. It must not erase what the team knew at an early stage.

Give every material fact a history

For each report fact, keep the value, source, writer, saved time, and trust level. If it changes, add the new value and reason. Do not replace a product ID, event-level result, or response state without a clear fix.

Keep the data filed at each stage with its receipt. A live fact review does not replace the exact data sent to the site.

Separate four record layers

Use four record layers. Keep a source index for first records and a work check for the current view. Keep an approved pack for allowed words and a filed copy for the outside event. Link all four with one case ID. Do not write one layer over another.

The source index should save the source, pull time, owner, file checks, and access limits. The work check may change often. The approved pack changes only after a saved review. The filed copy never changes and links to end proof.

Each layer answers a different point. An investigator needs the newest proof. A filing person needs approved facts. A read-only peer needs to rebuild what the firm knew and filed at a set time.

Reconcile before each submission

Before the 72-hour and final stages, check each old field. Mark it kept, changed, replaced, or still unknown. Resolve clashes or raise them to the choice owner. Make sure product and version scope still matches the proof.

Use a change list for each large fix. Save the old and new values, change source, reason, writer, reviewer, and report stage. Do not delete a wrong early result after filing. Show how later proof fixed it.

Close each stage with a list of the approved pack, filed data, end proof, clock math, and work given to the next owner. If a filing try failed, keep it as a try. Do not call it the filed event.

This trail lets the team prepare the next stage without rebuilding the case. It also shows a reviewer why the firm’s view changed over time.

Continue this workflow with the incomplete-facts ledger and the stable identifier map.