Tech Oriented Chronicles🔮 of Petros https://www.petrostechchronicles.com/blog A blog about Tech🤖, Entrepreneurship🚀, Coding👨🏻‍💻, and other interesting topics🧠. en-us undefined (Petros Savvakis) undefined (Petros Savvakis) Fri, 04 Sep 2026 00:00:00 GMT https://www.petrostechchronicles.com/blog/How_I_Built_A_Signed_Audit_Trail How I Built a Signed Audit Trail for an LLM System (And Broke It With One SQL Update) https://www.petrostechchronicles.com/blog/How_I_Built_A_Signed_Audit_Trail Most systems already have logs. Can you prove that the logs you show today are the records the system wrote six months ago? Ed25519 signatures, a SHA 256 chain, canonical JSON, and the one SQL update that broke all of it. Part 2 of From Prompt to Proof. Fri, 04 Sep 2026 00:00:00 GMT undefined (Petros Savvakis) AILLMsAuditCryptographyPythonEngineeringAI ActProduction