The Proof Ledger

Aggregate outcomes from 28 measured prompts: fixes shipped, the exact prompts re-tested on a schedule, and movement recorded against each prompt's own pre-ship baseline.

Time-to-first-citation bands across reportable wins: 5 within 3 days, 2 from 4-13 days, and 5 at 14+ days. These counts describe elapsed time, not whether retrieval, training, or another system behavior produced the citation. Observed-but-not-yet-reportable wins: 0.

Of 12 reportable win(s), 8 held across repeat tests under the product rule - the brand stayed cited in a majority of runs after first appearing.

A segment is shown only with at least 8 measured prompts and 3 reportable wins. These minimums limit small-count displays; they do not make a segment representative.

• Comparison / best / alternative - 4 reportable win(s) of 8 measured (50%), 2 held, median 1 day(s) to first citation.

A tracked prompt counts as an observed win when the exact prompt - re-run on a schedule after a fix shipped - returns at least one citation of the tracked brand. RankEcho marks it as a reportable win when at least 3 post-ship runs are recorded and the observed post-ship citation rate beats that prompt's own pre-ship baseline. That is a product reporting rule, not a statistical-confidence threshold.

The product held rule collapses engine observations within each run, counts any target citation, and permits intermittent uncited runs when a majority of later runs remain cited. It is not the manual exact-URL persistence measure across consecutive eligible windows.

For descriptive grouping, elapsed time is reported as within 3 days, 4-13 days, or 14+ days. These bands describe timing only. Timing alone cannot identify whether retrieval, training, or another system behavior produced a citation.

• These are correlation-with-controls observations, not causal guarantees. AI answers vary by engine, model version, retrieval state, time, and wording.
• The sample is self-selected: prompts that RankEcho customers chose to fix and track.
• Aggregate rates, medians, and timing-band counts are displayed only with at least 25 measured prompts and 10 reportable wins. These minimums control display; they do not establish statistical sufficiency.
• No customer-level results, domains, or prompts are ever published here - aggregate counts and medians only.

These are correlation-with-controls observations, not a guarantee that any engine will cite any brand. Aggregate counts and medians only.