INTcoin wallets hold ML-DSA-87 (Dilithium5) keys. Lose them and the
coins are unrecoverable — there is no “forgot password” link. Two
backup paths:
1. Mnemonic seed (recommended)
When you create a wallet through the Qt wizard, you’re shown a 24-word
BIP-39 mnemonic. Write it down on paper. Store it offline. Don’t
photograph it, don’t email it, don’t put it in a cloud notes app.
To restore on a fresh install:
intcoin-cli restorewallet "mywallet" "word1 word2 word3 ... word24"
Or in the Qt wizard: First Run → “Restore from seed phrase”.
The first address derived from the seed is deterministic — restoring
the same seed on a different machine produces identical addresses.
2. Wallet file backup
The wallet file is wallet.dat under the datadir’s wallets/ folder:
| Platform | Path |
|---|---|
| Linux | ~/.intcoin/wallets/<name>/wallet.dat |
| macOS | ~/Library/Application Support/INTcoin/wallets/<name>/wallet.dat |
| Windows | %APPDATA%\INTcoin\wallets\<name>\wallet.dat |
Copy it to encrypted storage (LUKS USB, encrypted disk image,
age/gpg-encrypted file). To restore, drop it back at the same path
and loadwallet <name> from CLI or Qt.
Backing up an encrypted wallet
The encryption key is derived from your passphrase, so the encrypted
wallet.dat is safe to copy to ordinary storage — but you still need
to remember the passphrase. Don’t write the passphrase next to the
seed phrase.
Verification
After restoring, sanity-check the first address matches what you saw
before the wipe:
intcoin-cli getnewaddress # generates derivation path m/44'/2210'/0'/0/0
Same seed → same address.