Supply aged over 10 years

Satoshi-era and early-adopter coins. Much of it is probably lost keys rather than patient holding, which is why it is the best available floor under any "how many bitcoin are lost" estimate. When it falls at all, it makes the news.

DefinitionCirculating supply held in unspent outputs whose age falls more than ten years. Age is real elapsed time off a monotonised block clock (the running maximum of block timestamps), not blocks divided by 144. The twelve bands sum to circulating supply exactly, verified to machine precision. Bit-identical to the retired "supply last active over 10 years" series.

LimitIt cannot distinguish deliberate cold storage from permanently lost keys, and it is the same series as the old "supply last active over 10 years" line. Age is per output, not per owner: consolidating coins or receiving change resets the clock on bitcoin nobody sold.

UnitBTC