Bitcoin marks 20 millionth coin mined as supply hits 95%

20 millionth bitcoin mined: what it means at ~940,000

Bitcoin (BTC) has reached approximately bitcoin block height 940,000, and the 20 millionth bitcoin mined marks a structural supply milestone. It indicates that roughly 95% of the protocol’s 21 million-coin cap has been issued, while the remaining tranche will arrive gradually by design.

This moment does not end issuance or alter consensus rules. Instead, it underlines Bitcoin’s predictable schedule and makes near-term supply growth small relative to existing float, with future coin creation tapering via recurring halving events.

Why 95% of bitcoin supply at bitcoin block height 940,000 matters

The practical effect of having about 95% of bitcoin supply mined is constrained inflation and reinforced scarcity at the protocol level. Said Thomas Perfumo, head of strategy at Kraken: “Supply growth is now extremely limited,” noting that annual issuance is around 0.8%.

Miner economics also evolve as block rewards decline. According to Nansen, revenue dependence will tilt further toward transaction fees and operational efficiency as subsidies diminish, a shift that may pressure higher-cost operators while incentivizing scale and cost control.

The milestone’s timing has been narrow but not exact because block intervals vary. As reported by ethers.news, the 20 millionth coin was projected around March 11–12, 2026 at roughly block 940,217, underscoring that while dates can drift, the scarcity narrative is anchored in code-defined issuance.

Issuance, halvings, and the path to 21 million

Bitcoin issues new coins approximately every block, with issuance reduced by half roughly every 210,000 blocks. This programmed cadence extends the tail of issuance over decades as the network asymptotically approaches the 21 million limit.

As per news.nbtc.finance, the remaining supply is expected to be mined gradually, stretching toward the year 2140. That long tail helps explain how the final ~5% can take more than a century even though the first 95% arrived in Bitcoin’s early years.

Over time, the network’s security budget is designed to transition from block subsidies toward fees. Whether fee revenue is sufficient at various stages remains an empirical question, and outcomes will likely depend on demand for block space, hash rate dynamics, and miner cost structures.

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