Compute 1000+ on-chain metrics from indexed blockchain data: supply breakdowns, realized/unrealized P&L, SOPR, MVRV, cohort analysis (by age, amount, address type), cointime economics, mining pool attribution, and price-weighted valuations.

Key Features

Cohort metrics: Filter by UTXO age (STH/LTH, age bands), amount ranges, address types
Stateful computation: Track per-UTXO cost basis, realized/unrealized states
Multi-index support: Metrics available by height, date, week, month, year, decade
Price integration: USD-denominated metrics when price data available
Mining pool attribution: Tag blocks/rewards to known pools
Cointime economics: Liveliness, vaultedness, activity-weighted metrics
Incremental updates: Resume from checkpoints, compute only new blocks

Core API

let mut computer = Computer::forced_import(&outputs_path, &indexer, fetcher)?;

// Compute all metrics for new blocks
computer.compute(&indexer, starting_indexes, &reader, &exit)?;

// Access computed data
let supply = computer.chain.height_to_supply.get(height)?;
let realized_cap = computer.stateful.utxo.all.height_to_realized_cap.get(height)?;

Metric Categories

Module	Examples
`chain`	Supply, subsidy, fees, transaction counts
`stateful`	Realized cap, MVRV, SOPR, unrealized P&L
`cointime`	Liveliness, vaultedness, true market mean
`pools`	Per-pool block counts, rewards, fees
`market`	Market cap, NVT, Puell multiple
`price`	Height-to-price mapping from fetched data

Cohort System

UTXO and address cohorts support filtering by:

Age: STH (<150d), LTH (≥150d), age bands (1d, 1w, 1m, 3m, 6m, 1y, 2y, ...)
Amount: 0-0.001 BTC, 0.001-0.01, ..., 10k+ BTC
Type: P2PKH, P2SH, P2WPKH, P2WSH, P2TR
Epoch: By halving epoch

Recommended: mimalloc v3

Use mimalloc v3 as the global allocator to reduce memory usage.

Built On

brk_indexer for indexed blockchain data
brk_fetcher for price data
brk_reader for raw block access
brk_grouper for cohort filtering
brk_traversable for data export