Bitcoin Sahi is a blockchain research organization. We identify fundamental problems in Bitcoin's economic architecture — and build open, data-driven solutions. No hype. No tokens. Peer-reviewed by the community. Built entirely in public.
BIP-141 (SegWit) created a 4× weight discount for witness data. It was designed to fix transaction malleability — not to create a pricing structure for permanent data storage. The result: an unpriced externality that grows with every inscription.
The fee market works well for its designed purpose: allocating block space among competing transactions. A higher fee gets you confirmed faster.
Every inscription adds data that every full node must store forever. The miner captured the fee — but the storage cost is borne by every future node operator.
A complete, open-source research project quantifying the gap between what the fee market prices and what node operators collectively bear. Three phases of work, all publicly documented.
We built a UTXO cost model from public data, verified it against live blockchain APIs, published the full verification appendix, and opened the question for community discussion on r/BitcoinEngineering. The model is adjustable — anyone can plug in their own assumptions.
BIP-141 analysis, covenant survey, r/BitcoinEngineering threads, bitcoin-dev discussions. Understanding the problem before proposing solutions.
Open-source UTXO cost function with full verification. 6 node scenarios (RPi pruned at $416/yr to desktop archival at $918/yr).
1-page framing, LinkedIn post, Reddit discussion (28 pts, 126 comments), r/BitcoinEngineering thread. Community feedback integrated.
Live at bitcoinsahi.com. Daily research monitor fetches live fee data. GitHub Issues auto-created on anomaly detection.
Every number on this site is reproducible. Every assumption is documented. Every script is on GitHub.
Python model with adjustable parameters. Run it yourself: python3 research/utxo_cost_model.py
1-page framing of the open question. No solution — just the clearest possible statement of the gap.
Daily GitHub Action fetches fees, BTC price, and model output. Data auto-commits to the repo.
Full source documentation for every parameter. Hardware costs, power draw, inscription sizes — all sourced.
Answer: do pruned nodes avoid the externality? No — unavoidable cost is ~$2.53/yr per node.
Analysis of the Reduced Data Temporary Softfork. Same diagnosis, different prescription.
A decade of engineering experience taught us that the best Bitcoin research starts with humility. We've been wrong twice — and we documented both failures.
Every model, script, and dataset is public. No black boxes. No proprietary calculations.
We publish numbers, not narratives. The data says what it says — even when it contradicts our hypothesis.
We publish on r/BitcoinEngineering, engage on bitcoin-dev, and welcome critique on Reddit. The best insights come from being wrong publicly.
We don't propose soft forks. We build the economic models that let the community decide whether a change is warranted.
Our models run daily via GitHub Actions. If the numbers shift, the site updates automatically.