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Interoperability

Polkadot (DOT)

DOT
Polkadot is a layer-0 network launched in 2020 that connects multiple specialized blockchains, called parachains, so they can share security and communicate with each other. It was designed by Gavin Wood, a co-founder of Ethereum.
$0.970524h change unavailable

Data: Coinbase · updated 9/6/2026, 1:02:01 PM

What Polkadot does

  • Connects independent, specialized blockchains ('parachains') into one shared network
  • Lets parachains share Polkadot's pooled security instead of bootstrapping their own
  • DOT is used for staking, network governance, and bonding tokens to secure parachain slots
  • Enables cross-chain messaging between connected parachains

Risks to know

  • Parachain slot auctions historically required bonding (locking up) large amounts of DOT, which can tie up capital for extended periods
  • Smaller developer and dApp ecosystem than Ethereum
  • Governance changes can be contentious and require active community participation to track
  • Interoperability-focused architecture is complex, which can make it harder for newcomers to evaluate

Where to trade DOT

Top-rated exchanges by CompareCEX Score. Check the exchange's market list for DOT availability before depositing.

Frequently asked questions

Who created Polkadot?

Polkadot was designed by Gavin Wood, a co-founder and former CTO of Ethereum, and is developed by the Web3 Foundation and Parity Technologies.

What is a 'parachain'?

A parachain is an independent blockchain that connects to Polkadot's central relay chain, gaining shared security and the ability to communicate with other parachains, while still being able to have its own specialized rules and token.

What is DOT used for?

DOT is used for staking to help secure the network, participating in on-chain governance votes, and bonding tokens to help a parachain project acquire or renew network connectivity.

Related coins

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