Pre-audit hardening
Booked an audit, or about to? We talk through the invariants your contracts must hold and where we would fuzz first.
- Invariant & fuzz plan
- Access-control review
- Upgrade & key risks
Singapore 20267–8 October · Marina Bay Sands
HashX Labs is in Singapore for TOKEN2049 from 7 to 10 October. If you are launching a protocol, issuing an asset or wiring AI into something that holds value, come and talk to the engineers who would build it.
Doors 07:30 SGT · Wed 7 Oct
We are in Singapore from 7 to 10 October: two days on the conference floor at Marina Bay Sands, then two across the city. Pick the day that suits you.
Wed 7 Oct
Doors open at 07:30. We are on the floor all day and meet between sessions.
Marina Bay Sands
Thu 8 Oct
Second day on the floor. Short meetings near the venue, longer ones after 18:00.
Marina Bay Sands
Fri 9 Oct
Time for longer working sessions. Bring a repo or a spec and we open the laptop together.
Anywhere in Singapore
Sat 10 Oct
Last slots of the week, for anyone who could not fit us in before.
Anywhere in Singapore
Thirty minutes with an engineer who would build it. Not a pitch: a whiteboard, your architecture and the ways it could break.
Booked an audit, or about to? We talk through the invariants your contracts must hold and where we would fuzz first.
Vaults, AMMs, lending, staking or a token launch. We sketch the architecture and the ways it could be attacked.
Funds, credit or property on-chain, with investor eligibility enforced by the token itself.
Issuance, reserves and payment rails that reconcile with the systems your finance team already runs.
Shared custody where no single person or device can move funds, with policies you can read.
Agents that read chains, documents and tools, with a person approving every action that writes.
Pick a day, a time window and what you want to cover. It takes a minute.
An engineer replies by email with a time and a place that works for both of us.
At Marina Bay Sands on the conference days, anywhere in the city on the others, or on video.
Client names stay private under NDA. The architecture and the tests do not: ask us to open them up when we meet.

A constant-product AMM with a staking module and cross-chain message passing, with invariant tests over every flow.

Identity-gated transfers with on-chain compliance checks, a claims registry and automated holder distributions.

Threshold-signature vaults with per-transaction spend policies and hardware-backed keys, on web and mobile.
Want to see how we test before we meet? Try the Invariant Lab
Fill it in and watch the pass come together. Sending it opens your email app with everything written out; an engineer replies to confirm a time and place.
TOKEN2049 Singapore · 2026
Anything else, just ask in your request.
Attending TOKEN2049?Read our TOKEN2049 Singapore 2026 guideDates, hours, getting there by MRT, side events and tips for builders.The conference runs on Wednesday 7 and Thursday 8 October 2026 at Marina Bay Sands, 10 Bayfront Avenue, Singapore, from 07:30 to 18:00 each day. TOKEN2049 Week side events run across the city from 5 to 11 October. HashX Labs is in Singapore from 7 to 10 October.
No. On the conference days we can meet inside Marina Bay Sands if you have a pass, or anywhere nearby if you don't. On the other days we come to you.
An engineer who would actually work on your project. It is a technical conversation, not a sales pitch, and there is no cost or obligation.
Please do. A repository, a spec or a whiteboard sketch all work. If anything is confidential, say so in the request and we can put an NDA in place before we meet.
Yes. Choose "Video call" on the meeting pass, or email us any time. The conversation is the same.
No. TOKEN2049 is an independent event. HashX Labs is attending, and this page is ours.
The conversation works just as well on video. Tell us what you are building and what must not go wrong.