method

the lanes

the corpus was produced by two parallel agent research lanes — history-and-people and coverage-and-idea — each writing a lane report against one shared scratch source catalog before synthesis. the method: lane-prefixed source ids frozen upfront, per-claim confidence, and a declared deduplication owner.

the evidence rules

1. every event, quote, and claim carries at least one source id.
2. dates keep their precision — a year, a month, or a day — and approximate dates are labeled rather than sharpened.
3. confidence stays honest: confirmed, reported, and inferred are distinct claims, not stages of the same claim.
4. sources are typed by role — primary, interview, reporting, archive, community — so a claim's foundation is visible before it is read.
5. sentiment labels describe the coverage, not the truth of it.

known gaps

1. convergent's exact 2021 incorporation date is not public; the fall spinout and the october unveiling are the anchors.
2. per-fro budgets are undisclosed beyond the self-reported $20–50m design range; the 'almost $400m' total is convergent's own figure.
3. 'persist' appears in no cataloged source — likely a conflation with imprint or an unannounced project; left unplaced rather than guessed.
4. e11 bio's establishment year is self-reported inconsistently — 2021 on convergent's page, 'launched in 2022' on e11's own.
5. the third fro of october 2021 — rejuvenome — belongs to astera, not convergent; the 'almost a dozen' roster count is self-reported.
6. uk residency application counts are reported as ~90–100 across posts; the discrepancy is preserved, not reconciled.
7. the governance and equity mechanics of chi-fro's transition to the probabilistic computing foundation are undisclosed.
8. staff departures — fridman, cvitkovic — are inferred from team-page diffs and bylines; neither was announced.

corrections

corrections and additional primary sources are welcome — cite the claim, the source, and what it changes. the catalog is designed to be audited, not just read.