Polkadot (DOT) is the native asset of the Polkadot Relay Chain, a Substrate-built Layer-0/Layer-1 network that coordinates independent blockchains called parachains under shared security.
Rather than hosting smart contracts directly, the Relay Chain provides consensus, security, and cross-chain messaging for connected parachains, which handle application-specific execution. As of 2026-08-31, DOT trades at $0.8246 with a market capitalization of roughly $1.4 billion.
Polkadot's differentiation is shared security: parachains lease blockspace from the Relay Chain instead of bootstrapping their own validator sets, and DOT is the asset staked to secure that shared pool.
Blockspace access runs through Agile Coretime, letting parachains rent relay-chain capacity in bulk or on demand. Usage remains modest relative to market size: the Relay Chain generated roughly $706 in network fees and served about 39,400 monthly active addresses over the trailing 30 days as of 2026-08-31, reflecting that most economic activity occurs on individual parachains rather than the relay layer itself.
DOT is both a utility and governance token used to pay for relay-chain blockspace access and to participate in on-chain decision-making. It is bonded and staked by validators and nominators to secure the network via nominated proof-of-stake, and required to submit and vote on OpenGov referenda.
Holders also use DOT as bonded collateral when parachains lease Coretime. As of 2026-08-31, roughly 53.7% of eligible supply is staked, earning a nominal annual yield of approximately 2.8-2.9%.
DOT has no fixed maximum supply; issuance is inflationary, targeting approximately 10% annual issuance under an adjustable model tied to the network's staking rate.
The Web3 Foundation ran a DOT token sale from October 14-27, 2017, raising approximately $140-145 million across a private round (over $80 million) and a public sale.
The public sale sold roughly half of the initial 10 million DOT supply at approximately $30 per token. Shortly after the sale closed, on November 6, 2017, a vulnerability in a Parity multi-signature wallet froze over 500,000 ETH, including approximately $98 million of the sale's own proceeds held in ETH — a security incident affecting the project's treasury rather than the Polkadot chain itself, which was not yet live.
Polkadot runs on its own Relay Chain, a standalone Substrate-built Layer-0/Layer-1 network rather than an EVM- or Solana-compatible chain.
Consensus combines nominated proof-of-stake for validator selection with a hybrid BABE/GRANDPA mechanism: BABE produces blocks while GRANDPA finalizes them, giving the chain fast, deterministic finality. The Relay Chain does not execute application logic itself; it coordinates and secures separately operating parachains.
Polkadot was founded by Gavin Wood, Robert Habermeier, and Peter Czaban, who published the Polkadot whitepaper in 2016.
Wood previously co-founded Ethereum, wrote the Solidity language, served as Ethereum Foundation's first CTO, and coined the term "Web3" before founding Parity Technologies with Jutta Steiner in 2015. Habermeier is a Parity core developer and Thiel Fellow who also co-founded Hypersphere Ventures. Czaban holds an MEng from Oxford (2016) and served as the Web3 Foundation's Technology Director.
Polkadot is stewarded by the Web3 Foundation, a Swiss non-profit based in Zug established in 2017 by Gavin Wood, Peter Czaban, and Robert Habermeier.
Parity Technologies, the for-profit engineering firm Wood co-founded in 2015, is the primary original developer of the Polkadot, Substrate, and Kusama software stack, distinct from the grant-funding, research-focused Web3 Foundation. Since Polkadot's OpenGov transition on June 15, 2023, neither organization retains formal governance authority over the live network.
Polkadot has been governed entirely on-chain by OpenGov since June 15, 2023, replacing an earlier Council/Technical-Committee model.
Any DOT holder can submit a referendum across 15 distinct origins (tracks), each with its own approval thresholds; multiple referenda run simultaneously, and voters may delegate votes per track. A treasury, funded by transaction fees and slashing, held approximately 41 million DOT. In OpenGov's first six months, referenda and votes rose roughly 1,008% and 1,981% respectively versus the prior system.
Polkadot's next-generation protocol core, JAM (Join-Accumulate Machine), has run on a public testnet since January 2026. 43 independent teams are building conformant implementations across 15 languages for a 10 million DOT prize pool.
JAM is intended to replace the Relay Chain with general-purpose, RISC-V-based shared computation; confirmed mainnet timing has not been established. Staking-mechanism upgrades went live on Polkadot in early July 2026. The 21Shares Polkadot Staking ETF, effective on Nasdaq since March 4, 2026, was renamed from "21Shares Polkadot ETF" on August 25, 2026.
Atredis Partners conducted a security assessment of Polkadot's communication stack and runtime source code, with dynamic testing on Kusama, between January 20 and February 11, 2020.
ChainSecurity audited the Ethereum-side "Polkadot Claims" contract used for ICO token claims on July 26, 2019, finding 2 medium- and 9 low-severity issues, all reported resolved; it separately built PolPatrol, an automated tool for testing relay-chain runtime upgrades. The Web3 Foundation states it funds pre-genesis audits of the Polkadot Runtime, Host implementations, and validator tooling as ongoing practice.