About This Site

This site covers four types of information about Bitcoin. First, real-time prices and long-term price time series updated via exchange APIs. Second, protocol-level structures such as the halving and issuance schedule. Third, a timeline of historical events that have influenced price and institutions. Fourth, the supply-and-demand structure broken down by participant type.

We do not provide investment advice, buy/sell recommendations, return guarantees, or paid signal services. We do not accept payment to recommend specific exchanges or products, and any advertising is clearly separated from content.

Real-time prices are pulled from public APIs such as CoinGecko, Binance, and Upbit, and the price widget indicates which source is in use. Long-term price time series are based on published open-source datasets, with recent periods updated via API values.

Historical events and supply-demand figures are compiled based on primary sources (government and regulatory announcements, major media reporting, and asset manager disclosures), with a source link attached to each item. Source links are periodically auto-checked for accessibility, and broken links are found and replaced.

When citing figures, we always note the as-of date, and clearly label estimates as estimates. For metrics where different tracking organizations report different values, we explain the differences in methodology rather than presenting a single value as definitive.

If you find inaccurate content or an error, please let us know via the email on the contact page. We will promptly verify and correct it, and the revised content will be reflected in the relevant entry. This site is independently operated and has no capital relationship with any specific exchange, asset manager, or project.