{"name":"lithtrix_journal_commit","title":"Lithtrix — Sealed journal commit","description":"Hash host-local journal material with SHA-256(lithtrix:sealed-journal:v1) and POST only the 32-byte digest to /v1/me/journal/commit. Lithtrix never receives preimage. Requires root LITHTRIX_API_KEY.","inputSchema":{"type":"object","properties":{"local_material_base64":{"type":"string","description":"RFC4648 base64 of local journal bytes. Decoded and hashed on the client; never sent to the API as preimage."}},"required":["local_material_base64"],"additionalProperties":false}}