Network charts/P2PKH Sunset Tracker

P2PKH Sunset Tracker

Share of outputs paying the legacy '1...' address type, with a 90-day average and reference lines at 10% and 5%

Short ranges plot one point per block, about one every ten minutes. Longer ranges plot one point per day, computed from every block in that day. How it is computed depends on the chart: some average, some total the day up, some are a ratio of the day's sums, and each chart says which. Either way a brief spike inside a day is smoothed away.

Loading chart data...

About this metric

Definition

The decline of the original Bitcoin address format. P2PKH is the '1...' address, and it carried nearly nine in ten outputs through the years between P2SH arriving and SegWit activating, with most of the rest going to '3...'.

Its share has fallen steadily since. Taproot overtook it in 2023 and is still ahead, but the two are not a seesaw: through 2026 both fell, and Taproot fell faster, because the share they both lost went to P2WPKH.

The reference lines at 10% and 5% are markers for reading the trend. They are not protocol thresholds and nothing happens when the line crosses one.

How it is measured

P2PKH outputs as a share of the eight classified output types, with a 90-day moving average at daily resolution only. The horizontal lines at 10% and 5% are reference marks chosen for this chart, not protocol thresholds. A falling share means other output types grew faster; it does not follow that any particular wallet or user moved.

Measured from my own Bitcoin node. Methodology

Key factsCalculated from the points currently plotted, so they follow the range you pick. Zooming with the slider changes only what you see, not these.

over selected range

OverlaysExtra context drawn on top of the chart. Event markers are vertical lines at dated moments; a comparison series is a second set of numbers on its own axis at the right.

Event markers

Every 210,000 blocks, roughly every four years, the block subsidy halves. Fees are the other part of what a miner collects and do not halve with it. Four halvings have happened so far.

A BIP is a Bitcoin Improvement Proposal: a design document for a change to the protocol. These lines mark the dates that proposals such as SegWit and Taproot became active on the network.

Releases of Bitcoin Core, the software most nodes run. A release does not change consensus rules by itself, but it often changes what transactions a node will relay, which can show up in these charts.

Dated moments outside the protocol that moved the numbers: exchange failures, country-level bans, the first Ordinals inscriptions.

Comparison series

The BTC price in US dollars, drawn on its own axis on the right. Sampled every 4 days, which is all the source provides for the full history, so a range shorter than that cannot draw it. Price crosses six orders of magnitude, so it usually wants the logarithmic setting beside it.

The total size of the block chain on disk, growing as blocks are added. An archival node keeps every byte of it; a pruned one verifies the same blocks and then discards the old ones.

Compare with

one at a time: they share the right axis

RelatedCharts measuring the same thing or covering the same part of the network, for reading this one in context.

Address Type Share Explicit RBF Signaling SegWit Adoption Transaction Type Share

Get this data

CSV and JSON take the selected range without overlay series. PNG captures the chart as it looks now.

RelatedCharts measuring the same thing or covering the same part of the network, for reading this one in context.

Address Type Share Explicit RBF Signaling SegWit Adoption Transaction Type Share