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Attestari
Auditable, provably-deletable memory for AI agents
Open-source memory for AI agents you can actually audit. Every fact carries provenance (where it came from), the history is tamper-evident, and any user's data is provably deletable: forget() destroys their key and issues a signed certificate — data unrecoverable, audit proof survives. Reconciles GDPR "delete" with the EU AI Act "keep records." Zero-dependency core, runs on plain Postgres. Apache-2.0.
Hi Product Hunt 👋 I'm the solo founder of Attestari.
I kept hitting the same wall with agent-memory tools: they're black boxes. You can't prove where a stored "fact" came from, prove a user's data was actually deleted, or verify the history wasn't quietly edited — which rules them out for anyone under GDPR or the EU AI Act.
So I built the opposite. Attestari is event-sourced: an append-only, hash-linked log is the source of truth, and provenance, time-travel, and provable deletion fall out of it. Deletion works by encrypting each user's data under their own key — forget() destroys the key and issues a signed certificate, so the data is unrecoverable while the audit proof survives.
Don't take the claims on faith — `pip install attestari` and run examples/prove_the_moat.py; it attacks its own guarantees and self-verifies (asserts, not print statements). Apache-2.0, runs on plain Postgres.
Feedback welcome — especially from anyone who's shipped memory into a regulated stack (fintech, health, insurance). What would you need to actually run this?
The forget() flow with signed deletion certificates is genuinely clever—turning a legal headache into a cryptographic primitive. Nice execution on something most teams would have hand-waved away.
Love that forget() issues a signed certificate, that's a clever way to bridge GDPR and the AI Act. One thing I'd find really useful: a small CLI flag like `attestari verify --user <id>` that re-checks a deletion certificate against the current ledger state, so I can run it during audits without digging through docs. Would make compliance reviews way smoother.
The forget() returning a signed deletion certificate is a really thoughtful touch, makes GDPR compliance feel less like a black box. Genuinely curious how the tamper-evident history holds up under heavy write loads on Postgres.
Congrats on tackling such a tricky compliance problem with the tamper-evident history and forget() flow. One thing that would really help teams adopting this is a small CLI or SDK helper that previews exactly which rows a forget() call would touch before it issues the certificate. Right now I can imagine nervous compliance folks wanting a dry run to sanity-check cascade paths and catch any unexpected references tied to that user before signing anything destructive.
About Attestari on Product Hunt
“Auditable, provably-deletable memory for AI agents”
Attestari was submitted on Product Hunt and earned 10 upvotes and 5 comments, placing #107 on the daily leaderboard. Open-source memory for AI agents you can actually audit. Every fact carries provenance (where it came from), the history is tamper-evident, and any user's data is provably deletable: forget() destroys their key and issues a signed certificate — data unrecoverable, audit proof survives. Reconciles GDPR "delete" with the EU AI Act "keep records." Zero-dependency core, runs on plain Postgres. Apache-2.0.
Attestari was featured in Open Source (68.6k followers), Developer Tools (516.2k followers), Artificial Intelligence (474.3k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 224.6k products, making this a competitive space to launch in.
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