Replying to Avatar jimbocoin 🃏

Once BIP-444 activates, you’ll want to split your coins to protect against replay attacks.

1. Make a reorg transaction sending your coins back to yourself, including a large OP_RETURN. This TX will be valid only on the main chain and not the BIP-444 chain.

2. Once that settles, now you can create a second reorg TX, without OP_RETURN. This TX is valid only on the BIP-444 chain since it’d be a double-spend on main.

3. Now you can keep/spend your main chain #Bitcoin and your forked LukeCoin without replay risk.

Enjoy!
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StackinBeets 2mo ago 💬 1

Hadn't heard the term replay attack before.

Do I have it right if I say I'm safe by just not receiving nor sending on either chain until I reorg?

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jimbocoin 🃏 2mo ago

A replay attack is when a transaction is valid on both chains. If you do nothing (HODL tight), then you’re at no risk by definition, since you haven’t made any transactions to replay.

However, the instant you want to make a transaction, you’re at risk of replay, and hence the need to split.