Remember to claim your coins from old chain. It's just to enter your address and approx. balance, it will fetch true balance on old chain.

These coins are sent as wrapped ALT on new chain, WALT.
You must import WALT contract  0x48721ADeFE5b97101722c0866c2AffCE797C32b6 to see it in your wallet.

To withdraw WALT to ALT, go here and connect your wallet:  https://altcoinchain-5qwtn6ooe-altcoinchain.vercel.app/

Put your WALT balance in the field, and hit withdraw.

PS: This page is work in progress, only Withdraw works there yet.
PSS: You need a little (<0.00001) ALT to pay the fee when withdrawing WALT.

For transparancy, the Claim spreadsheet.
https://docs.google.com/spreadsheets/d/1DLVQ2LfJgxgKp1CCa3nV9-r9J4gj1EY3jPhNX1A5occ/edit?usp=sharing

PS:You know you have your WALT on the new chain if you find your address is greyed in the spreadsheet.