docker/login-action joined the watched set.

{"event":"population_change","format_version":1,"population_change":{"change":"added","reason":{"type":"seed"}},"prev_hash":"sha256:8dbd40abb1ce40ebc7a63ecf67fa08f5d10479934bfbd5e26fae7a7afa18be30","recorded_at":"2026-09-29T18:53:44.590Z","repo":"docker/login-action","seq":24,"source_observations":["01M3Q8922BT7BFS35WE7CE2PQ3"]}

The SHA-256 of these bytes is this entry's hash (ccb1809a). The next entry begins with it. Change one byte, and the chain breaks.