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Dec PDP-8 emulator running FOCAL 69 in 4K for Arduino DUE and Arduino MEGA 2560
Open-Source Article 12 Logging Infrastructure for the EU AI Act in TypeScript
EU legislation (which affects UK and US companies in many cases) requires being able to truly reconstruct agentic events.
I've worked in a number of regulated industries off & on for years, and recently hit this gap.
We already had strong observability, but if someone asked me to prove exactly what happened for a specific AI decision X months ago (and demonstrate that the log trail had not been altered), I could not.
The EU AI Act has already entered force, and its Article 12 kicks-in in August this year, requiring automatic event recording and six-month retention for high-risk systems, which many legal commentators have suggested reads more like an append-only ledger requirement than standard application logging.
With this in mind, we built a small free, open-source TypeScript library for Node apps using the Vercel AI SDK that captures inference as an append-only log.
It wraps the model in middleware, automatically logs every inference call to structured JSONL in your own S3 bucket, chains entries with SHA-256 hashes for tamper detection, enforces a 180-day retention floor, and provides a CLI to reconstruct a decision and verify integrity. There is also a coverage command that flags likely gaps (in practice omissions are a bigger risk than edits).
The library is deliberately simple: TS, targeting Vercel AI SDK middleware, S3 or local fs, linear hash chaining. It also works with Mastra (agentic framework), and I am happy to expand its integrations via PRs.
Blog post with link to repo: https://systima.ai/blog/open-source-article-12-audit-logging
I'd value feedback, thoughts, and any critique.
Comments URL: https://news.ycombinator.com/item?id=47230438
Points: 1
# Comments: 0
Show HN: OpenClaw agents that read the same task board and mention each other
Article URL: https://squadofagents.com/
Comments URL: https://news.ycombinator.com/item?id=47230407
Points: 1
# Comments: 0
SOEL – A programming language that's a language
Article URL: https://github.com/BankStrategy/SOEL
Comments URL: https://news.ycombinator.com/item?id=47230399
Points: 1
# Comments: 1
Equality as a Consolation Prize
Article URL: https://www.writingruxandrabio.com/p/equality-as-a-consolation-prize
Comments URL: https://news.ycombinator.com/item?id=47230397
Points: 1
# Comments: 0
How close is the EU to break free from Visa and Mastercard's grip?
Article URL: https://www.euronews.com/my-europe/2026/03/03/how-close-is-the-eu-to-break-free-from-visa-and-mastercards-grip
Comments URL: https://news.ycombinator.com/item?id=47230391
Points: 1
# Comments: 0
Scaling Time Series to Millions of Cardinalities
Article URL: https://itnext.io/scaling-time-series-to-millions-of-cardinalities-greptimedbs-flat-format-7a9d67dd8000
Comments URL: https://news.ycombinator.com/item?id=47230380
Points: 1
# Comments: 0
Show HN: I Built Systems AGI – 1600 Verticals, Self-Healing, Self-Evolving
Hey HN,
For a while now, I've been building a cognitive AI business operating system from the ground up natively as a solo developer. I never coded before 6 months ago. I was frustrated with wrappers and fragile single-agent setups, so I decided to approach this as a distributed systems problem instead. It's called *Sophify*.
Instead of trying to make one monolithic capability do everything, I built a 12-server, 28+ microservice swarm orchestrated by over 40 highly specialized cognitive AI agents.
*Here’s the architecture under the hood:* * *40+ Agent Architecture (Model Agnostic):* Decisions aren’t made by a single prompted agent. There is a multi-agent orchestration system that uses weighted voting and consensus across 40+ specialized cognitive agent profiles to synthesize decisions. Crucially, the system is LLM-agnostic—you can plug in whatever LLM you prefer (local or remote) to power the reasoning engines. * *The Technician Bot:* Given that this comprises 28+ interconnected microservices running in the cloud. I wrote a persistent Technician layer. If a node hangs or hits a port collision (hello `WinError 10048`), the Technician detects it, diagnoses the stack, kills zombie processes, reallocates networking, and brings the service back online with zero human intervention. * *1,600+ Industry Verticals:* Rather than building general-purpose workflows, the OS comes pre-loaded with state machines and hardcoded context for over 1,600 specific verticals running 1,284 autonomous workflows—handling everything from healthcare compliance to real estate out-of-the-box. * *Military-Grade Security & Built-in VPN:* The entire system runs inside an integrated, zero-trust VPN layer with cryptographic audit trails and multi-tenant isolation. Production-ready for DoD contracts, healthcare (HIPAA), and enterprise compliance. * *Deep Microsoft 365 Integration:* Full Microsoft Graph API implementation with native access to email, calendar, Teams, OneDrive, SharePoint, and Planner. The system orchestrates across AWS, Azure, and GCP with vertical-specific API frameworks for healthcare EHRs, real estate MLS systems, and finance platforms.
*Why did I build this?* Started with API keys, ended with self-evolving, self-healing Systems AGI... and I still have to retrieve my own API keys lol. At least the system is acquisition-ready, fully decoupled, heals its own memory leaks and stalled sockets natively, and scales horizontally.
Happy to answer any questions about the 13-layer self-healing mechanism, managing the websockets across a 12-server swarm without race conditions, or the multi-agent consensus algorithms. *Serious acquisition inquiries:* sophify-aaron@hotmail.com Tear it apart. What did I miss?
Comments URL: https://news.ycombinator.com/item?id=47230379
Points: 1
# Comments: 0
Building vs Digging
Article URL: https://bgthread.github.io/an-identity-crisis-in-engineering/
Comments URL: https://news.ycombinator.com/item?id=47230370
Points: 1
# Comments: 0
CPU Cache Flushing Fallacy (2013)
Article URL: https://mechanical-sympathy.blogspot.com/2013/02/cpu-cache-flushing-fallacy.html
Comments URL: https://news.ycombinator.com/item?id=47230363
Points: 1
# Comments: 0
Time to First Success
Article URL: https://www.leadinginproduct.com/p/time-to-first-success-ttfs
Comments URL: https://news.ycombinator.com/item?id=47230361
Points: 1
# Comments: 0
Ask HN: How do you verify crypto payments in your app?
I'm building a SaaS that accepts USDC payments. Simple requirement: customer sends stablecoins, I need to know when they arrived and the amount matches. Current options seem to be:
1. Payment processor (Coinbase Commerce, NOWPayments) — handles everything but takes 0.5-1% per transaction. On a $10k payment that's $50-100 just for confirmation.
2. DIY with Alchemy/Infura webhooks — poll for Transfer events, match amounts, track confirmations, handle reorgs, build retry logic. Took me ~2 weeks and it's still brittle.
Is there a middle ground? Something that just does the verification part — "tell me when X amount arrived at Y address" — without the custody/checkout/fee overhead? Curious how others are handling this, especially on L2s like Base where tx costs are negligible but verification infra is the same complexity as mainnet.
Comments URL: https://news.ycombinator.com/item?id=47230346
Points: 1
# Comments: 0
Stop Asking Junior Engineers to Struggle Harder
Article URL: https://jotter.jonathankingston.co.uk/blog/2026/03/03/stop-asking-junior-engineers-to-struggle-harder/
Comments URL: https://news.ycombinator.com/item?id=47230345
Points: 1
# Comments: 0
An Open Letter on the Office.js Stability, Security and Trust Crisis
Article URL: https://github.com/OfficeDev/office-js/issues/6513
Comments URL: https://news.ycombinator.com/item?id=47230340
Points: 2
# Comments: 1
Americans now listen to podcasts more often than talk radio, study shows
Article URL: https://techcrunch.com/2026/02/25/americans-now-listen-to-podcasts-more-often-than-talk-radio-study-shows/
Comments URL: https://news.ycombinator.com/item?id=47230335
Points: 1
# Comments: 0
Sphere Packing in Lean
Article URL: https://github.com/math-inc/Sphere-Packing-Lean
Comments URL: https://news.ycombinator.com/item?id=47230333
Points: 1
# Comments: 0
LLMs are living off the moral and intellectual capital of a pre-AI world
Article URL: https://twitter.com/mbrendan1/status/2028137693583221065
Comments URL: https://news.ycombinator.com/item?id=47230324
Points: 2
# Comments: 0
Zolotarev's Magical Proof of Quadratic Reciprocity
Article URL: https://arxiv.org/abs/2603.00278
Comments URL: https://news.ycombinator.com/item?id=47230315
Points: 1
# Comments: 0
*Lisp
Article URL: https://en.wikipedia.org/wiki/*Lisp
Comments URL: https://news.ycombinator.com/item?id=47230314
Points: 1
# Comments: 0
