This is an excerpt from https://www.ycash.xyz, Hashnest will not support Ycash at the moment.
Ycash is a fork from Zcash. The Ycash/Zcash fork will occur at block height 570,000 of the Zcash blockchain, which is approximately July 18, 2019.
For the motivations behind the fork, see "Announcing Ycash, The First “Friendly Fork” of the Zcash Blockchain" (2019-04-11).
Ycash Address Formats
Ycash uses different address formats than Zcash, making it impossible to accidentally send Zcash to a Ycash address (or Ycash to a Zcash address).
Receiving Your Ycash
Because Ycash is a chain fork of Zcash, everyone holding Zcash at the time of the fork will receive the exact same amount of Ycash. To ensure that you get your Ycash, you must possess your Zcash private keys.
1. Importing Zcash Private Keys into YecWallet
In YecWallet, click on the File menu and choose "Import private key". You'll be prompted to input your private keys, each private key on a separate line.
2. Exporting Zcash Private Keys from Zcash Wallets
Make sure that your Zcash wallet allows you to export private keys. (If not, you will not be able to access your Ycash.) Follow the instructions provided by your ZCash wallet.
If you are using ZecWallet, click on the File menu and choose "Export all private keys".
3. Hardware Wallets
No hardware wallet has announced native support for Ycash. For a discussion of possible options, see this discussion on Reddit.
Safe.Trade has pledged to list Ycash. For those users with ZEC deposited on the exchange, Safe.Trade has pledged to credit those users with an equal amount of YEC.