Every Polymarket market that closes needs somebody to tell the UMA Optimistic Oracle what happened. For most markets, that “somebody” is a bot — Polymarket’s own proposers hit almost every market within minutes of close. But for obscure markets, delayed ones, and edge cases, human proposers still matter. If you’ve ever bet on an underfollowed market and watched it sit unresolved for days, you already know why.
This guide covers the whole proposer lifecycle: who can propose, how the whitelist works, what the economics look like in practice, and whether it’s actually worth your time.
Spoiler: the answer to that last question is almost never. But understanding the system is still valuable — it tells you a lot about how resolution actually works on Polymarket.
What Proposing Actually Is
When a Polymarket market closes, the outcome isn’t automatic. Someone has to submit a proposal to the UMA Optimistic Oracle saying “this market resolved YES” (or NO, or 50/50). The proposal is posted with a $750 PUSD bond, then sits in a 2-hour liveness window during which anyone else can dispute it.
If nobody disputes, the market resolves to the proposed outcome, the proposer gets their bond back plus a small reward, and winners can claim their PUSD.
That’s it. Proposing is that single step — reading the market rules, checking the real-world outcome, and posting the answer on-chain with skin in the game.
There’s a parallel role called verifying, where community members sanity-check proposals during the liveness period and flag bad ones for dispute. Verifying is lower-stakes (no bond required) and broadly more accessible. This guide focuses on proposing; verifying is worth its own article.
Who Can Propose: The Whitelist
A couple of years ago, anyone with $750 and a wallet could propose. That’s no longer true for most markets.
Today, the vast majority of new Polymarket markets require proposers to be on a whitelist maintained by UMA. The whitelist was introduced after Polymarket and UMA concluded that open proposals were generating too many disputes from inexperienced proposers who didn’t know the resolution rules or the market’s specific quirks.
Current whitelist criteria (per UMA docs):
- At least 5 proposals on OptimisticOracleV2 or ManagedOptimisticOracleV2
- Over a rolling 6-month window
- With ≥95% accuracy (i.e. no more than 5% of proposals ending up disputed and overturned)
- Addresses that stop meeting the criteria are removed on the next snapshot
Snapshot cadence: UMA takes a snapshot of proposer activity on the 2nd of every month, and the whitelist updates within the following week.
There’s a practical wrinkle worth calling out. The floor is 5 proposals, but the accuracy threshold is ≥95%. If you’re only hitting the 5-proposal minimum, the math forces you to 100% accuracy on those first five — because 4 out of 5 is 80%, which fails the threshold. The 95% floor only gives you any margin for error once you’ve done 20+ proposals.
There’s also a separate “no front-running” rule. If UMA notices you’re timing your proposals off other proposers’ transactions in the public mempool — effectively sniping the reward from someone else’s work — you get removed from the whitelist regardless of accuracy.
How to Get On the Whitelist (The Cold-Start Problem)
The obvious problem: if most markets require the whitelist, how do you build a track record of 5 proposals in the first place?
The answer is that not every market uses the whitelist. Some older markets, lower-volume markets, and certain categories still use the open (non-whitelisted) system. You can find them by watching the UMA Oracle UI — look for markets where anyone can propose, not just whitelisted addresses.
The practical path:
- Find a non-whitelisted market you’ve actually traded or followed closely.
- Read the resolution rules carefully, including any linked criteria.
- Check the real-world outcome from the source the market specifies — not a proxy, not a tweet, the actual source.
- Confirm no edge cases apply (see resolution precedents — this is where most first-time proposers trip).
- Post your proposal with the $750 bond.
- Wait out the 2-hour liveness period.
Do this five times without a dispute, and the next monthly snapshot will add you to the whitelist.
Realistically, this takes months. You can’t just grind through five markets in an afternoon — proposing correctly requires the right market ending at the right time with a clear outcome, and non-whitelisted markets aren’t plentiful.
The Economics
Bond: $750 PUSD. Returned with your successful proposal.
Reward: Historically $2 PUSD. Many markets have now bumped this to $5 PUSD, particularly markets that tend to see delayed or contested proposals. Still small, but nicer than $2.
Downside: If your proposal is successfully disputed and UMA token holders rule against you, you forfeit the entire $750 bond.
Let’s put numbers on that. A $5 reward against a $750 bond risk means your proposal needs to be right better than 99.3% of the time just to break even on expected value — and that ignores your time, gas, and the bond’s opportunity cost while it’s locked up. In practice, any serious proposer should aim for zero disputes, not 99.3% accuracy.
On dispute escalation timing: the 2-hour liveness period is only the first checkpoint. If a dispute is filed, the market re-opens for a fresh proposal. If a second dispute is filed, it escalates to the UMA DVM, which is a 48–96 hour voting period where UMA token holders decide the outcome. Your $750 stays locked the entire time.
Is It Actually Worth It?
Speaking from 3 years on Polymarket and around 50 proposals (zero disputes so far): no, not as an income stream.
A few reasons I still occasionally propose:
- I trade obscure markets, and I’d rather spend 10 minutes proposing correctly than wait three days for a bot to notice the market closed.
- It forces me to understand resolution rules better. Reading the rules closely enough to propose is how I learned most of the resolution precedents that matter.
- The $2–$5 covers gas, which means the rest of the time I’m basically doing it for free — fine by me, because I’d want the market resolved regardless.
I would not recommend proposing if any of the following are true:
- You need the $750 bond for active trading. The opportunity cost is real.
- You’re not already an advanced Polymarket user who’s read the resolution rules carefully on the specific market type.
- You haven’t studied the precedents. Most disputes come from proposers who didn’t realize a technicality applied — preliminary vs. final data, the spirit of the market, the event vs. data availability deadline, etc. See the resolution precedents article before you post a single bond.
- You plan to propose on markets you haven’t traded. Distance from the market is where mistakes come from.
Practical Tips If You’re Going to Propose Anyway
- Know your resolution source cold. If the market says “resolves to the Federal Register,” don’t propose based on a White House press release. If it says “resolves to USGS magnitude data,” remember that USGS revises magnitudes for 24 hours after an earthquake. Source literacy is 90% of the game.
- Respect the event deadline vs. data availability deadline. Some markets require the event to happen before the deadline but allow the data confirming it to arrive later. Others don’t. The difference is often buried in the resolution text.
- Don’t propose “Too Early.” A common P4 (“Too Early”) outcome happens when the market’s specified data source hasn’t published yet. Wait for the final data point the market actually calls for.
- Don’t propose against market price if you’re unsure. If the market is trading at $0.97 YES and you’re about to propose NO, pause and figure out why it’s trading that way. The market may know something you don’t.
- Never timing-snipe. Watching the mempool for someone else’s proposal and front-running it will get you removed from the whitelist. It’s also unambiguously bad etiquette.
- Start small and in your wheelhouse. Your first handful of proposals should be markets you traded actively and know the rules of inside out.
Bottom Line
The proposer system is what keeps Polymarket’s resolution decentralized and trustworthy. But it’s designed to be boring — 99% of the time, a Polymarket bot handles it silently and nobody needs to care.
If you want to participate, go in with clear eyes: it’s a public-goods contribution with a small reward attached, not a way to make money. The $2–$5 does not compensate for the $750 at risk. The only people who should be posting proposals are advanced users who already understand how markets resolve and the precedents that shape ambiguous cases.
If you’re not already trading on Polymarket, start there first — sign up for Polymarket, get comfortable with the mechanics, and come back to proposing once you’re genuinely curious about the oracle machinery that makes the whole system work.
Learn More
- How Polymarket Markets Resolve — The full UMA Optimistic Oracle process
- Resolution Precedents on Polymarket — The 8 precedents every proposer should know
- Bonding on Polymarket — A different use of capital-at-risk on resolved outcomes
- Polymarket Fees Explained — What it costs to trade once you get there