Question regarding staking, esp in Lido

Hi, i am a beginner in staking

i would like to know more about what happens to the blockchain state when a token is staked on the blockchain.

what resources can i use to learn more ?

also, how can i extract the staking data from the blockchain ?

Hey, you can learn more about staking through the official Ethereum docs: Ethereum staking | / Proof-of-stake (PoS) |