Blog
Product updates, technical notes, and announcements about Arche and deterministic financial data infrastructure.
Monday, September 28, 2026
Kevin Downey
Arche is open to everyone. Every number is checked against the filing it came from, every version stays queryable, and a restatement arrives as a signed event.
Category: Data & Research
Thursday, March 5, 2026
Kevin Downey
Financial models fail when historical filing-derived data is overwritten. Deterministic datasets preserve lineage so backtests, research, and audits remain reproducible.
Category: Data & Research
AAPL · Income Statement
Conceptual view of versioned statements (illustrative)
Revenue
Change captured as a first-class event (not an overwrite)