Casper is an authorized network token that is used to pay transaction fees and node compensation, works on Proof-of-Stake.

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Casper

Casper is designed to accelerate enterprise and developer adoption of blockchain technology today and evolve to meet the needs of the future of Web3.

Casper Network | The future proof Blockchain

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Casper Testnet Upgrade to 1.4.5 🚨🆙🚨

The upgrade is now available. All Testnet validators should stage the upgrade to Casper-node v1.4.5 immediately. 

Details here:
https://casper.network/network/blog/casper-network-v145-memo

Casper Testnet Upgrade to 1. The upgrade is now available. All Testnet validators should stage the upgrade to Casper-node v1.