NodeWitness: 230 BTC less than Bitcoin's theoretical supply is actually spendable
- —Gap between issuance schedule and spendable UTXOs is 230.12 BTC, or 0.00115% of supply
- —50 BTC of that is the genesis block reward, which never entered the normal UTXO set
- —100 BTC were lost to two duplicate coinbase transactions in 2010, prompting BIP30
- —Another 28.96 BTC went unclaimed by miners and 3.72 BTC were destroyed via OP_RETURN
Why it matters: It confirms Bitcoin's actual spendable supply is always slightly below 21 million, though the impact on the network's economics is negligible.
Source: DiarioBitcoin