Bitcoin Price Index
The true cost of living measured in sound money. No hedonic adjustments. No substitution tricks. Just real prices in Bitcoin.
Index Comparison
Base: 100 = Jan 2021BPI vs DPI vs CPI (Base: Jan 2021 = 100)
Why is BPI Volatile?
Bitcoin is currently on its path to global monetary adoption. As adoption increases, Bitcoin's purchasing power will continue to grow — but with significant volatility along the way. As more people adopt Bitcoin as their primary form of money and unit of account, the BPI will stabilize over time. Think of current volatility as growing pains on the road to becoming the world's reserve currency.
What is the Dollar Price Index (DPI)?
DPI measures the same basket of 21 commodities as BPI, but priced in US Dollars instead of Bitcoin. This gives you a transparent, manipulation-free measure of dollar inflation using the exact same methodology. Compare DPI to CPI to see how much the government understates real inflation through substitution bias, hedonic adjustments, and other tricks. When DPI shows 35% inflation but CPI shows only 21%, you know someone's not telling the truth.
Why CPI is Called "CP-LIE" 🤥
The Consumer Price Index has been systematically modified to understate inflation. Here's how:
🔄 Substitution Bias
When steak gets expensive, the BLS assumes you'll buy hamburger instead. Your standard of living drops, but CPI stays flat. Real people don't "substitute" their way to prosperity.
✨ Hedonic Adjustments
Your new TV costs the same as last year, but it has more pixels! CPI counts this as deflation. Meanwhile, your rent, food, and healthcare keep rising.
🏠 Owner's Equivalent Rent
Instead of tracking actual home prices, CPI uses a made-up "rent" that homeowners would pay themselves. Housing costs have exploded, but CPI barely noticed.
📐 Geometric Weighting
Changed in 1999 to automatically reduce the weight of items that rise in price. A mathematical trick that ensures CPI never captures true inflation.
🎯 Convenient Exclusions
"Core CPI" excludes food and energy — you know, the things you actually need to survive. Asset prices like stocks and real estate? Also excluded.
🔧 Constant Revisions
The methodology changes whenever inflation gets too embarrassing. Each change mysteriously results in lower reported inflation. Coincidence?
Methodology Comparison
₿ BPI Approach
- Fixed basket of 21 real-world commodities
- Transparent, unchanging weights
- Prices measured in Bitcoin (hard money)
- No substitution adjustments
- No hedonic adjustments
- Daily updates from market data
- Open methodology — anyone can verify
💵 DPI Approach
- Same basket as BPI (21 commodities)
- Same transparent, unchanging weights
- Prices measured in US Dollars
- No substitution adjustments
- No hedonic adjustments
- Daily updates from market data
- Shows true dollar inflation
🏛️ CPI Approach
- Complex basket with 80,000+ items
- Weights change based on consumption
- Prices in constantly inflating dollars
- Substitution bias lowers reported inflation
- Hedonic adjustments lower reported inflation
- Monthly updates with revisions
- Methodology changes to suit political goals
BPI Basket Composition
Disclaimer: The Bitcoin Price Index (BPI) is an experimental alternative inflation measure for educational purposes. It should not be used as the sole basis for financial decisions. CPI data sourced from the U.S. Bureau of Labor Statistics via FRED. BPI calculated from commodity prices denominated in Bitcoin.