Definition. Cost Basis Distribution (CBD) Heatmap for Long-Term Holders visualizes supply density across price levels over a selected period (e.g. 1 month, 1 year). The y-axis represents cost basis on a log scale, set from 1% below the minimum price to 1% above the maximum price within the chosen period. Each pixel's color intensity reflects the concentration of LTH-held supply at that price level, allowing identification of where significant portions of the asset's supply were acquired and of potential support and resistance areas based on historical acquisition levels.

Technical. All CBD metrics use an address-based approach, analyzing holdings at the individual wallet-address level for consistency across digital assets and comparability across blockchain architectures. This contrasts with a UTXO-based approach (used in metrics like URPD), which categorizes supply based on unspent transaction outputs and is typically used for chains like Bitcoin. Metrics for UTXO-based assets may therefore show slight differences when compared across these distinct computational methods.