Polymarket Switches on Instant Bitcoin Lightning Deposits, Cutting 60-Minute Waits to Under a Second
The post Polymarket Switches on Instant Bitcoin Lightning Deposits, Cutting 60-Minute Waits to Under a Second appeared on BitcoinEthereumNews.com. Key Takeaways Polymarket now credits bitcoin Lightning deposits in under 1 second via Spark, versus 10–60 minutes onchain. Spark validates BTC transfers at broadcast, replacing the 3–6 confirmations Polymarket required since October 2025. Kalshi’s $5.42 billion April volume lead over Polymarket raises the stakes for faster funding rails in 2026. Opening up New Avenues Polymarket has switched on instant bitcoin deposits via the Lightning Network, a payments layer built on top of the Bitcoin network (powered by the Spark protocol). The upgrade replaces a funding flow that previously took anywhere from 10 to 60 minutes, with the new route crediting deposits in under a second with near-zero fees. The change is a sharp departure from the standard onchain bitcoin deposits Polymarket added in October 2025, which required three to six network confir