I've been asked several times, so here's a single answer.
The Filecoin mainnet launched on October 15, 2020, at genesis block height 148888.
Storage providers must stake FIL as collateral. If they fail to store data as agreed, part of their collateral will be forfeited.
$FIL is the native token of the Filecoin network, and storage fees are paid in $FIL . Currently, 1.0777.
If you have anything to add, share it in the comments.

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