The shift was detected by Twitter-based blockchain monitor @whale_alert, which confirmed that the 40 BTC featured in the transaction were mined in the first month of Bitcoin’s existence.

ℹ️ The coins in this transaction were mined in the first month of Bitcoin’s existence. Tx: https://t.co/hxDJGGtfF0 — Whale Alert (@whale_alert) May 20, 2020 Back then, the Bitcoin network was very small, and its pseudonymous creator Satoshi Nakamoto was one of just a handful of active miners.

Yep, that’s old Bitcoin, but it’s hard to prove this is really Nakamoto

It’s important to note that there’s currently no direct proof linking the mysteriously absent Nakamoto — who some believe still sits on roughly 1 million BTC — to this transaction.

— nic carter (@nic__carter) May 20, 2020 Still, it’s certainly cool to see it move at all, considering when it was mined the price of BTC was effectively zero. Whoever controls this cryptocurrency has some very strong hands.