Ethereum went live on July 30, 2015: command-line, developers only, almost nobody deploying. EPOCH honours the handful of tokens that survived that window.
Before The DAO. Before the ICO boom, before NFTs, before stablecoins and DEXs. Before ERC-20 itself existed.
A standard ERC-20, fixed supply of 72,000,000, minted once.
One week of Thawing, then four week-long seasons: out of the ice, growing, and back to the cold. Each stays sealed until its week opens, and after Winter the campaign is done.