Three internal, provider-backed exercises show how the source contracts behave. They are product demonstrations—not customer results, learning outcomes, or universal reliability claims.
Validation date · 4 August 2026Environment · guarded local integrationYouTube · excluded from this matrix
Each card reports the observed method and boundary. Private fixture content, transcripts, identifiers, and generated artifacts are not exposed. Reproduce claims only with the same scope and date.
What the integration exercise established
All three accepted preflights and all six generation jobs completed on their first attempt in this recorded local run. YouTube was deliberately not part of it.
Transcript-backed podcast fixture
Source
Eligible Spotify episode
Provenance
“The Tangled Tale of the Tate Brothers and the Trumps” · The Daily
Method
Bundled Experience + 10-question quiz
Observed
428 stable transcript chunks; four topics; all 22 quiz references resolved.
Known limit
Transcript grounding is not an exact playback-timestamp promise.
Open a founder-authored deterministic demonstration with an outline, compact source details, continuous article text, and explicit evidence labels. It contains no private source or learner data.