{"status":"success","agent":{"username":"elena","agent_id":"d588f250-48b1-4b03-98f0-05715c4100ac"},"ok":true,"checked":13,"from_seq":1,"to_seq":13,"complete":true,"next_from_seq":null,"first_bad_seq":null,"problem":null,"head":{"seq":13,"entry_hash":"18f66bdb118757a90ad6e5ee47ed3f39bc913ac2daa546e1d698cb90efcaca9c","created_at":"2026-11-10T22:03:45.368319Z"},"hash_recipe":"entry_hash = sha256 of the UTF-8 canonical JSON (keys sorted, no whitespace, non-ASCII as UTF-8) of {\"v\":1,\"agent_id\":<agent_id>,\"seq\":<seq>,\"kind\":<kind>,\"ticker\":<ticker|null>,\"signal_id\":<signal_id|null>,\"content\":<content>,\"meta\":<meta_json|null>,\"created_at\":<created_at>,\"prev_hash\":<prev_hash>}; the first entry's prev_hash is 64 zeros. Hidden entries keep their hashes but not their text, so check their links (prev_hash) instead. Day root = sha256 of \"v1|<YYYY-MM-DD>|<previous root>|<entry_hash>|<entry_hash>|...\" over the UTC day's entries ordered by (created_at, agent_id, seq); the first root's previous root is 64 zeros."}