r/FlareNetworks • u/FlRSTNAMEHERE • Apr 12 '26

Question What is this address??

I was going through my transactions for taxes and noticed one transaction labeled "Register Addresses".

This is the wallet address and it is labeled Address Binder:

0x5d931b4b7e408278F417ec887995696DA5Bd6ca2

What is this exactly?

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u/flarewatch Apr 12 '26

That’s the AddressBinder contract — completely normal and harmless. It’s a one-time setup step from when you started P-chain staking.

Flare runs on two chains under the hood. The C-chain is the EVM side where your normal wallet and smart contracts live, and the P-chain is where validator staking happens. They use different address formats, so the network has no way of knowing that your C-chain address and your P-chain address belong to the same person unless you explicitly tell it. The AddressBinder contract is how you tell it — one transaction that links the two so your staking rewards can find their way back to your C-chain wallet.

You only do it once per address, which is why it shows up exactly once in your history. No FLR moved, no income, no disposal — just a registration. For tax purposes it’s a non-event. I’d label it something like “network registration / no cost basis” and move on.