According to the POL white paper released by Polygon, the concept of Staking Layer will be introduced, which is a POL-driven chain coordinator that supports an almost unlimited number of Polygon chains with arbitrary characteristics and configurations. Additionally, the Community Treasury will be introduced, an in-protocol community-managed fund that provides ongoing economic support for the development and growth of the Polygon ecosystem. In order to ensure rewards for verifiers and support for the ecosystem, it is recommended that POL be issued at a specific rate year by year in addition to the initial supply of 10 billion pieces (all converted from MATIC). Specifically, in terms of validator rewards, Polygon recommends that the annual POL issuance rate for this approach be set at 1% of the supply, which cannot be changed for the first 10 years, after which the community can decide the specifics through the governance framework value, but the issuance rate will never exceed 1%; in terms of ecosystem support, Polygon also recommends that the annual issuance rate of POL for this approach be set at 1% of the supply. As with validator reward issuance, this value can be reduced after 10 years through the governance framework, but will never exceed 1%.