Polkadot is a platform that allows diverse blockchains to transfer messages, including value, in a trust-free fashion; sharing their unique features while pooling their security. In brief, Polkadot is a scalable heterogeneous multi-chain technology. Polkadot is heterogeneous because it is entirely flexible and makes no assumption about the nature or structure of the chains in the network. Even non-blockchain systems or data structures can become parachains if they fulfill a set of criteria. Polkadot may be considered equivalent to a set of independent chains (e.g. a set containing Ethereum, Ethereum Classic, Namecoin and Bitcoin) except with important additions: pooled security and trust-free interchain transactability. Many of the native parachains of Polkadot will be written using a Polkadot Runtime Environment SDK (e.g. Parity Technologies' Substrate).

Polkadot（波卡）项目是一个由Web3基金会和Parity团队支持的跨链协议项目。提示：大约在8月21日（UTC时间）13时15分（区块号1,248,328），这个DOT标记将会从最初的发售中进行面额变更。New DOT 将比DOT（old）小100倍。因此，您的DOT余额将会增加100倍，而每个DOT的价格将会降低为约100分之一。你所拥有的DOT在总供应中的比例将不会改变。更多信息请看Polkadot的博文。