Probatum is a hybrid private/public blockchain system that turns trading-desk compliance checks into an append-only, independently verifiable record — so payout disputes end at the proof, not in a meeting.
When a payout dispute comes down to "the trader says, the desk says," there's usually no independent way to settle it. Logs can be edited. Spreadsheets get "corrected." Trust runs out exactly when it matters most.
Traders and desks disagree on whether a rule was followed, with no tamper-evident record to settle it.
Most compliance logs live in systems where a record can be quietly changed after the fact.
"We checked" isn't the same as "here's the cryptographic proof we checked." Probatum closes that gap.
Compliance events stay private and on-premise. Only a periodic fingerprint of that history goes public — enough to prove nothing was altered, without exposing trade detail.
Each compliance event is written once to a JSONL chain, sequentially hashed to the previous entry. No edit or delete path exists.
Batches of records are periodically rolled up into a single Merkle root — a compact fingerprint of everything in that batch.
The root is committed to a public chain (e.g. Base or Arbitrum), giving the batch a timestamp no one controls.
Anyone holding a record can recompute the hash path and check it against the public root — no need to trust the firm's word.
The private chain runs on an isolated machine, reachable only through a controlled interface. Nothing about the compliance log is exposed to the open internet — only the anchored root ever leaves.
Runs on a dedicated, network-isolated host behind nginx, with no inbound path to the raw compliance data.
Even someone with access to the machine can't edit history without breaking the hash chain — the system would visibly fail verification.
| Stage | In active development |
| Deployment target | Isolated host, managed by us |
| Anchor chain | Public L2 (Base / Arbitrum — under evaluation) |
| IP approach | Trade secret — architecture isn't published or open-sourced |
Probatum is in active development. If you run a prop desk and want to see how this would slot into your compliance process, get in touch.