Polkadot (DOT) is a blockchain project designed to interconnect sub-chains called parallel chains or parachains. Each application-specific chain built within Polkadot uses the Substrate modular framework, and this is meant to ease the development process.
The project has been at the center of developers' and investors' attention for most of 2021, but the sharp market-wide correction on May 19 dealt a heavy blow to the DOT price, and the team has been relatively quiet for the past two months.
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