A 2013 WALLET MOVED 411.45 BITCOIN FOR 337 SATOSHIS — ITS PUBLIC KEY IS NOW ON THE CHAIN — 25 DUST OUTPUTS STAYED BEHIND

On Sept. 11, 2013, the address 13Coop8 took in 411 bitcoin in one payment and 0.45 more about four minutes later. It never spent. On Oct. 18, 2026, at 18:23 UTC in block 972,036, one transaction moved both coins, 411.44999663 bitcoin, to a new SegWit address. The fee was 337 satoshis, about one satoshi per virtual byte. CoinDesk, citing Arkham, reported the move as 411.45 bitcoin.

The owner did not take everything. The old address still holds 25 tiny outputs, 114,012 satoshis in all, that strangers sent it over the years as ads and dust. None were swept. Spending them with the real coins would have tied them together in one transaction for anyone to see. Leaving them behind costs a little over a thousandth of a bitcoin.

There is a cost to that choice. An address of this old type keeps its public key hidden until it spends. This spend put the key on the chain for good, so the 25 leftovers now sit behind a key anyone can read. The 411 bitcoin went to a new address that hides its key again until it spends.

The dust did not stop. Two hours and 45 minutes later, in block 972,055, a vanity address starting 1BTC5 sent another 1,010 satoshis to the old address. Nobody can refuse a payment on bitcoin, but nobody has to spend one either. Whoever holds these keys has left it alone so far. At the time of this writing, bitcoin was $82,459.