About Bitcoin Sahi

Bitcoin Sahi (BSAHI) is an independent research project measuring the economics of Bitcoin block space.

Bitcoin has a market price for block space, but no explicit market price for the long-lived resources a confirmed transaction commits the network to. Bitcoin Sahi measures one of those resources — replicated storage — and asks how much of its modeled cost is actually covered by transaction fees.

What we measure

Bitcoin Resource Accounting is the research program: quantifying the long-lived resources Bitcoin consumes (replicated storage, UTXO state, validation, relay, bandwidth) and how much of each cost the fee market internalizes. The first metric is the Storage Cost Coverage Ratio (SCCR):

SCCR = transaction fees (USD) ÷ modeled 10-year storage cost borne by full nodes (USD)

A ratio below 1.0 means the fees paid do not cover the modeled cost of storing that data across the network. SCCR is fee-market-driven and time-varying: we publish it as a dated measurement, not a fixed constant.

How we work

First-party instrumentation. Measurements come from our own Bitcoin Core node and public network APIs, captured and frozen with dates.
Reproducible. Three independent implementations (JavaScript, Python, C) agree to the last decimal, and a public reproduction kit lets anyone verify the SCCR in about 15 minutes.
Self-correcting. We found and published a 10× time-horizon error in our own number, corrected it, and regenerated every value.
Falsifiable. Claims are stated with explicit bounds, assumptions (N, T), and falsifiers.
Open. Code, data, and method are public under CC BY 4.0.

Data

The measurement endpoints are open and stable:

/data/sccr.json — latest SCCR reading
/data/sccr_history.json — daily SCCR series
/data/perblock_validation.json — per-block validation samples
/data/difficulty_series.json — difficulty, 2009–present
/data/mempool_congestion_series.json — mempool congestion, 2016–present

Who

Prateek Poswal — Independent Researcher. ORCID 0009-0005-2139-1877. Source code and data: github.com/prateekposwal/block-space-economics.

Contact

Research and correction queries: beta@bitcoinsahi.com. We particularly welcome attempts to falsify the measurements.

Licensing

Research, data, and code are published under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. Reuse with attribution.

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