CR=
Value Held50 × Σ(q × v × m)¾
Each piece first.
Then sum.
+
Consistency12.5
× purchase
months
+
Artist Support15
× qualifying
artists
q quantity · v value in ETH · m maturity
qualifying: a primary purchase of 0.01 ETH or more, held 30 days or more
A provisional score, with visible evidence
The board uses current holdings and each piece’s latest recorded sale. That evidence may not capture a collector’s full history, so recorded months, artists supported, and activity are minimums, not complete totals. Pieces without a known price remain visible but contribute no Value Held points.
Purchase evidenceEvery acquisition is classified as a marketplace purchase, an on-chain OTC purchase, an attested OTC purchase, or a transfer with purchase status unknown. A purchase is recognised automatically only when settlement evidence in one transaction links the artwork, buyer, seller and payment; a nearby payment or an NFT transfer alone is not enough. Attested purchases count only after house review. Purchase status, acquisition date and price carry their own evidence, so a purchase can stand while its price stays unknown.
Coverage is partial. Each collector’s row names the protocols and adapters that were read and what remains unresolved.
The formula is versioned. Expand any collector’s row to see the inputs, calculations, and missing data behind their score.