Technical white paper for the Cockroach Crawler 0.7 release candidate pinned to source commit 90825063d447f07345388d040b1428a311109c2b. It documents the architecture, trust boundaries, reproducibility protocol, and the rejection of frozen raw-DOM attempt 003. The result supplies negative development evidence only and supports no 0.7 stable release, ranking, best-crawler statement, or universal 0.90 claim.