Each weekly snapshot of the full UTXO set, ordered by the block height it corresponds to — not by the calendar day it was taken, which may not match while we finish backfilling the full history. Hover over the chart for the detail of each snapshot; click a cohort in the legend to isolate or hide it. The dashed white line is BTC's market price on the real date that height corresponds to (right axis, log scale) — useful for reading the colors against the price cycle.
Groups every address with a balance by how much BTC it holds in total, from dust (under 0.001 BTC) to whales (over 10,000 BTC). It doesn't say who owns each wallet, only how much BTC it controls.
Weekly, we take a full snapshot of the UTXO set from our own Bitcoin Core node — complete, unpruned, run by us, not a third-party API. UTXOs are grouped by address (same script = same address, no need to decode it) and each address's total balance is classified into the nine cohorts shown above.
It has 10 weekly snapshots so far, all from the last few weeks. A full historical backfill — rebuilding the UTXO set at past block heights — is designed and pending, documented in our Score version history. Until then, this page tracks the trend going forward honestly, without pretending to have years of history it does not have.
The change in supply share held by large cohorts (sharks and whales) is one of two sub-signals of our own node's data, the single highest-weighted input to the NodeWitness cycle Score. See the full methodology in how the Score works.