Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
6% | 94% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
6% | 94% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Market context
Polymarket is pricing a **6%** chance that Satoshi-linked Arkham wallets show an **outflow or swap** before the settlement window closes, and that sits on the low end of the market’s usual “dormant but not impossible” stance. On Polymarket, traders are effectively buying exposure on USDC deposited to Polygon and matched into conditional tokens, so the contract reflects whether participants think Arkham will record any qualifying movement, not whether the public narrative around Satoshi changes.
The baseline remains extremely inert: Arkham groups roughly **1.1 million BTC** across about **22,000** Satoshi-attributed addresses, and those coins have not shown confirmed outgoing activity for years. Recent attention has mostly come from incoming transfers, not spends. In February 2026, around **2.5 BTC** was sent to the Genesis address, but reporting noted that this was an external payment and did not indicate Satoshi moving coins[1][4][7]. Similar bursts of speculation have also followed old-wallet activity from the Satoshi era, but those cases were later attributed to other holders rather than Satoshi itself[2][5].
For traders, the main catalysts are any Arkham-labelled changes on the entity page, plus headline-driven speculation around dormant-wallet activity, identity theories, or governance and security debates that put Satoshi’s stash back in focus. A recent example is the July debate over freezing Satoshi’s Bitcoin amid quantum-risk concerns, which showed how quickly the market can reprice on discussion alone even without any on-chain spend[9]. The practical watchpoint is simple: a single Arkham-visible outflow or swap from any wallet tagged to Satoshi would be enough to resolve this Yes, so the contract is sensitive to attribution quality as much as raw blockchain movement[16].
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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