Everyone trades time for money, which then can be given to another person to get something in return. But when money is stored in a fiat currency for the future use, it loses the purchasing power over time due to the currency inflation. If a currency lost 25% of its initial value, this means 25% loss of time and efforts spent to get that money. 1 day (8 hours) you worked and got paid for, today has a monetary value as if you worked 0.75 days (6 hours).
On the other side, when money is stored in deflationary Bitcoin, and its purchasing power increased by 400%, this means getting 400% more value for the time traded in the past. 1 day (8 hours) you worked and got paid for, today has a monetary value as if you worked 5 days (40 hours).
This website compares Bitcoin, Local Currencies, USD, Stock Indexes, Gold and Silver as a Store of Time.
To adjust data for inflation, the website uses Broad Money Supply and Consumer Price Index (CPI) datasets.
The broad money supply includes currency in circulation, checking/savings deposits, and various functional cash-equivalents that consumers and businesses hold at commercial banks. "Printing" money by increasing the money supply diminishes the value of the currency, its purchasing power falls and prices rise.
The CPI measures the monthly change in prices paid by consumers. It is calculated by government statisticians and might be manipulated to report lower values, as lower CPI provides benefits to the governments. That's why the Broad Money Supply version will be more accurate.
Broad Money Supply and Consumer Price Index data is provided by International Monetary Fund.
Exchange Rates data is provided by Open Exchange Rates.
Stock Market data is provided by Yahoo Finance.
Found a bug or think the website is missing a feature? It is open source and available on GitHub, so feel free to create an issue or a pull request.
Have a price history dataset for something? Make your Store of {Something} website from it.