Top Highlights

• In addition to Mainnet, there are public testnets.
• These are networks used by protocol developers or smart contract developers to test both protocol upgrades as well as potential smart contracts
• Among dapps that integrate with existing smart contracts, most projects have copies deployed to testnets.
• Most testnets started by using a permissioned proof-of-authority consensus mechanism.
• This means a small number of nodes are chosen to validate transactions and create new blocks – staking their identity in the process.

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