What changed, and when.

October 1, 2026 · AI infrastructure company profiles

• Added Corintis, Xscape Photonics, Exowatt and Emerald AI with 21 financing observations, dated product milestones and original source libraries.
• Added a separate early-stage equity sensitivity calculator with entered valuations, cumulative dilution, upfront fees and carried interest. It does not infer a share price or an actual investor return.
• Enabled comparable private-share inputs, saved scenarios, research downloads and read-only AI calculations for all four companies.
• Preserved reported funding totals, original currencies, debt/equity distinctions and unresolved valuation bases.

New company research checked October 1, 2026. Older observations retain their original check dates. The SpaceX prospectus models and SEC reference remain available.

Explore the new profiles →

September 21, 2026 · Public research access

• Added source-linked JSON, CSV and Markdown company files, a public catalog and read-only MCP research tools.
• Added concise evidence summaries to OpenAI, Anthropic, NVIDIA, Tesla and Airbnb pages.
• Corrected Tesla’s explanation to distinguish its historical IPO endpoint from the optional entered-price scenario.
• Private user-entered price dates now accept dates through today. Public dates after the review window require an explicit assumption that the reviewed share basis is unchanged. Historical-only cutoffs remain in force.
• Added AI referral categories and separate feed/tool request counts. These measures begin with this release and do not backfill older traffic.

The underlying evidence register remains private-expansion-v12, reviewed September 19, 2026. No new market prices or financing valuations are asserted by this release.

How corrections work

Send the company name, observation ID, disputed detail and an original source to capitaltimemachine@gmail.com. We review the evidence before changing a value or enabling a calculation. Material published corrections will be described here with their date and effect on the method.

Each financial observation retains its source locator, date role and check date. A source check verifies what the publication says; it does not independently audit a company’s claim. Unknown investment terms remain unknown.