Polkadot (DOT) is a multi-chain blockchain platform that connects separate networks like Bitcoin and Ethereum, enabling secure data and asset transfers. Built on a relay chain and parachains, it offers shared security, forkless upgrades, and high throughput - making it a top choice for enterprise and DeFi applications.
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Cross-chain development promises seamless DeFi across blockchains, but in 2025, it's riddled with hacks, gas traps, and broken assumptions. Learn the real pitfalls and how to build securely.
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