Inscription Block Share
Inscription witness data as a share of block weight, totalled over each day
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.
About this metric
Definition
How much of a block's weight went on inscription data. Inscriptions go in the witness, which the protocol charges a quarter rate for, so they can fill a block by bytes while leaving room by weight. Two blocks come closer than any others to being nothing else: 892,279 and 899,687, both 99.96% inscription by weight.
How it is measured
Includes both the inscription content (images, text, JSON) and the witness envelope structure (OP_FALSE OP_IF, push opcodes, 'ord' marker). This is the whole matching witness item, payload and envelope together, as the detector found it. Witness bytes count one weight unit each instead of four, so an inscription consumes a quarter of the block weight its byte count suggests.
Measured from my own Bitcoin node. Methodology