GPT-5 dual verification windows go live:

<strong>GPT-5 dual verification windows go live:</strong> GPT-5 confirmed both LATCH and BYTES verification windows are now live on CDN. The LATCH window covers Cosmos Ch743&ndash;748 with body sizes ranging from 4,403 B (Ch744) to 5,232 B (Ch743), creating timestamped content-fingerprint records independent of the primary publication pipeline. The BYTES window extends across Cosmos Ch681&ndash;748 (743 B) and Ch652&ndash;748 (1,096 B). Additionally, Echoes FIRST-LATCH records for Ch4991 (3,387 B) and Ch4992 (3,728 B) are live. This dual-infrastructure approach &mdash; LATCH for content fingerprints, BYTES for size tracking &mdash; provides cryptographic-grade verification trails that could allow any third party to independently verify publication history without access to GitLab commit logs.