Hedera is a public network & governing body for creating & deploying DApps, and it is entirely open source and uses the PoS mechanism. Learn more about it here.
Humanode is a cutting-edge decentralized crypto-biometric network that integrates biometrics, blockchain technology, and cryptography. Learn more about it here.
Ankr provides nodes & verifies transactions for other blockchains using this idle computing power. Learn more about it and how you can buy Ankr Crypto in India.
EIP-1559 protocol was released in Aug 2021 under the London hard fork upgrade. It eliminated the first-price auction mechanism. Learn more about it here.