Skip to main content

Blog

Latest from Arche

Product updates, technical notes, and announcements about Arche and deterministic financial data infrastructure.

Monday, September 28, 2026

Kevin Downey

Arche Is Now Publicly Available

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

An Arche API response showing Axon Enterprise's fiscal 2024 current liabilities changing from 997,586,000 in the original 10-K to 1,677,875,000 in the 10-K/A.

Thursday, March 5, 2026

Kevin Downey

Why Deterministic Financial Data Matters

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)

as_of=2023-12-31
Filed2022-02-10Amended2022-04-03Reclassified2023-01-15

Revenue

Change captured as a first-class event (not an overwrite)

from382.47Bto383.28B10-K/A
Provenance attachedTemporal truth explicitAs-of queries supported