Bitbank, a Japanese cryptocurrency exchange, said that transactions linked to prediction-market platforms such as Polymarket could result in account suspensions [1].
This move highlights the tension between decentralized finance and national legal frameworks. Because prediction markets often operate in a regulatory gray area, Japanese exchanges are taking preemptive steps to avoid legal penalties associated with illegal gambling.
The exchange said that such transfers may breach Japan’s gambling laws [2]. Consequently, Bitbank may freeze or suspend accounts found to be interacting with these platforms [3]. This crackdown comes as Japanese regulators increase their scrutiny of crypto-based prediction markets to ensure compliance with domestic statutes [4].
Polymarket and similar platforms allow users to bet on the outcome of real-world events using digital assets. While these platforms operate globally, the movement of funds from a regulated Japanese entity like Bitbank into these markets creates a direct link that regulators can track, making the exchange liable for facilitating prohibited activities.
Bitbank's decision reflects a broader trend of risk aversion among licensed exchanges in Asia. By restricting access to high-risk platforms, the exchange aims to maintain its regulatory standing in one of the world's most strictly governed crypto environments [1].
Users have been advised to review their transaction history to avoid potential freezes [3]. The exchange has not specified a timeline for when these restrictions might be lifted, nor has it detailed the exact criteria used to identify Polymarket-linked addresses [2].
“Transactions linked to prediction-market platforms such as Polymarket could result in account suspensions.”
This action signals a tightening of the bridge between regulated fiat-to-crypto gateways and decentralized prediction markets. As Japan seeks to integrate digital assets into its financial system, it is simultaneously enforcing strict anti-gambling laws, effectively isolating domestic users from global speculative platforms that lack local licenses.
