A proof engine for the decisions your AI agents make.
DarkMatter is a proof engine for AI agents, not just another audit log.
Commit a record at the moment of decision. It is sealed, stored outside your system, and verifiable by anyone, even if DarkMatter were to go away.
Your logs live inside your system
Logs, databases, and audit trails all live in systems you control. When something goes wrong, you are asking people to trust you. Some situations do not allow that.
By the time you need proof, it is too late
You cannot retroactively create an independent record. Evidence that appears after an incident is not evidence. The record has to exist before anyone knew it would matter.
AI decisions are too consequential to leave unverified
Automated decisions about money, safety, and compliance need a record that works without your involvement. Not logs you wrote. Not a dashboard you built.
One line of code. A record that stands on its own.
Add one line at decision time
Call dm.commit() when your agent makes a decision. It takes under a second and does not change how your agent works.
DarkMatter seals it outside your system
The record is stored in a vault that is independent of your infrastructure. No one inside your organization can modify it after it is committed.
Anyone can verify it, independently
Share a link or export a proof bundle. Regulators, auditors, and counterparties can check the record themselves, without a DarkMatter account, without coming to you.
DarkMatter works with the tools you already use. One line drops into any Python or TypeScript agent.
Independent of your system
The vault exists outside your infrastructure. DarkMatter stores the record, but verifying it needs nothing from us. Export a bundle and you hold your own copy of the hashes, so any later change on our side fails against it.
You can hold the keys
At L3 a record is signed with a key only you hold, before it reaches us, so we could not have produced it on your behalf. Export a chain at any level and it verifies offline against the open-source verifier, with no call back to us.
No vendor dependency to verify
Export a record and anyone can check it without a DarkMatter account, without internet access, and without trusting us. The verifier is open source and runs locally against the bundle you hold.
Not a control. Not an auditor. A record an assessor can re-check.
Six frontier companies signed the voluntary White House Accord on Super Intelligence on 29 September 2026. It asks each of them for four layers of controls and audits on their own models. DarkMatter is not a signatory and performs none of the four; this is what it does beside each one.
Internal controls
Internal team
External auditor or evaluator
Board committee
What this is not
DarkMatter is not a signatory to the accord, is not endorsed by or affiliated with any party to it, and is not a model developer or an auditor. The accord is voluntary and names no tool or evidence format, so nothing here is required by it.
DarkMatter records and does not stop anything, and a hash chain shows the records you were given still match their hashes, not that every action was recorded.
Record contents are kept for 30 days on the Free plan and one year on Pro; after that they may be removed while the hashes remain, so download the proof file while the contents are still in it.
No independent witness co-signs checkpoints today and the one registered witness is operated by DarkMatter, so detecting a change made by DarkMatter depends on you or your assessor holding a proof bundle exported beforehand.
The same kind of record is what our EU AI Act page discusses: Article 12 logging applies to stand-alone high-risk systems from 2 December 2027, and whether a system meets it is for you, your counsel and, where one is involved, a notified body to determine, not DarkMatter. DarkMatter holds no third-party certification today.
The vault your AI agents needbefore they need it.
Set up in minutes. One line of code. Free to start. No card required.