[Polkadot Upgrades Token Issuance Model, Setting Maximum DOT Supply at 2.1 Billion] According to a report by Jinse Finance, on March 14, Polkadot announced via the X platform that its upgraded token issuance model officially took effect on March 14 (Pi Day). This protocol update introduces several key adjustments, including setting the maximum supply of its native token DOT at 2.1 billion. Currently, approximately 80% of the tokens have already been issued. Additionally, the issuance rate of DOT will be reduced by about 53% in a one-time adjustment on March 14, with plans for further gradual reductions in the future. Reportedly, these adjustments were proposed by the community and approved through the OpenGov governance mechanism, aiming to maintain the network's incentive structure while limiting long-term issuance scale and providing the market with a more transparent and predictable token issuance path.