all of it, on one page.

There are 1,024 eggs, numbered #1 to #1024, and never more — 1,024 is a constant, not a setting. Pick any unclaimed one and burn $HATCH for it. You get a real ERC-721. The burn is the same whichever egg you choose; it starts at 1000 $HATCH and rises by 10 for every egg ever claimed. It goes to the dead address, not to anybody.

Every egg is already decided: its colour, body, crown, eyes, mouth, markings and shell are a hash of its number. You can look at any egg's whole life before you claim it. Nobody chose them, and nobody can change them.

From the block you claim it, it ages. The picture — drawn by the contract, not a server — moves through eight stages:

The age belongs to the holding, not to the creature. Any transfer — a sale, a gift, a move to your own second wallet — cuts the age in half, in the same transaction. A day-60 ancient that changes hands arrives a day-30 elder. So an old one cannot be bought outright: whoever buys it pays for half its age and has to grow the rest back. And yet an old one still sells for more than a young one, because half of a lot is still a lot.

Once per UTC day, anybody can feed any creature — theirs or a stranger's — by burning $HATCH. A feeding adds one day to its age. It costs 100 $HATCH times one plus the stage, so an ancient eats eight times what an egg does. Feeding every day doubles the pace. Nothing buys more than that.

List it at a price, straight against the contract. Nothing is escrowed — it stays in your wallet, still ageing, until somebody pays or you unlist. When it sells, 95% goes to you and 5% is burned, in one transaction, and the buyer receives it at half its age.