A brief summary of everything Substrate and Polkadot

Fabian Schulz
Mar 18, 2019 · 15 min read
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Origins

Interoperability as the key to specialization

Scalability

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Security aspects

Shared security

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The security model of Polkadot pools resources, countering the problem of the weakest link in the network.

Making blockchain development easy

Substrate: a framework to efficiently build different blockchains

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From factory-sealed laptop to a fully-specced blockchain in 30 minutes — Dr. Gavin Wood presenting Substrate on stage at Web3 Summit 2018, Berlin.

Designed for maximum technical freedom and ease

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Developers are free to choose how much of the Substrate framework they want to use.

Polkadot is not Substrate is not Polkadot

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Integrating existing blockchains

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A bridge chain from a 10,000 foot view of the Polkadot architecture.
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Possible manifestations of Substrate-based chains.

Forkless runtime upgrades

Updating the network — the usual way

Updating the network — the Substrate way

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Every time Substrate executes a block, it checks its version of the code, being able to switch from native runtime to the Wasm runtime on-chain in case the node is not running the most recent version.

Wrapping up

TL;DR


Next Steps

Polkadot Network

Medium account/ publication of the Polkadot Network

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