forge-built

Find the exact inputs where f64 interest or FX code rounds to the wrong cent, with proofs

How many bars an EMA, RSI or ATR needs before its seed can't change a tick, proven

Measure how many truly different programs your code LLM samples, not just how many pass

Settle a web of payment obligations in the fewest transfers, with a proof of optimality or gap

Exact rates of the typos ISIN, CUSIP, SEDOL, LEI, IBAN and ABA check digits fail to catch

Recover signed interaction networks from knockout experiments, and report which edges can't be determined

Lossless tick-data codec that finds the price grid inside float columns and beats Gorilla XOR

Turn a desired crypto order into the best one that passes every exchange filter, in exact decimals

VaR backtests (Kupiec, Christoffersen, Basel traffic light) with exact finite-sample p-values

Finds the provably best scale for each block of quantized LLM weights, plus the MSE heuristics lose

Call-auction uncrossing with each venue's tie-break rules, checked against brute force over every price

Tight best- and worst-case fill bounds for a passive order backtested on L2 data

Find static arbitrage in option quote grids, and the fewest quotes to drop to remove it

How many strategies did your AI agent really try? Deflated Sharpe and PBO, done right

Find every usage level where a tiered price table charges less for more, in exact arithmetic

Compute ACH settlement dates, same-day windows and return deadlines using the real Fed calendar

Find viewport widths your CSS breakpoints miss or double-cover, fractional pixels included

Zero-copy NASDAQ ITCH 5.0 decoder and order book rebuilder, checked against a model book

An executable spec for continuous matching engines: replay your fills, get the first rule broken

Markowitz Critical Line Algorithm in exact rationals: the whole efficient frontier, certified