What historical Bitcoin values can tell you

A historical market value estimates what a Bitcoin amount was worth in a selected currency using a historical market price. It does not show what a particular person paid for those coins.

A simple example

Suppose 0.01 BTC is valued at $50,000 per BTC on its confirmation date. Its estimated value is $500. If the same amount is valued at $80,000 per BTC today, it is worth $800 at that price. The $300 difference is a change in valuation. It does not prove a $300 profit: the receipt could have been a transfer between someone’s own addresses, a gift, or another type of payment. These are illustrative prices, not a live quote.

How the report uses prices

Historical transaction values use daily market price data associated with the confirmation date, with currency conversion where available. If no price is available for a date, the report may use the previous available daily close. These figures are estimates, not exact execution prices or prices paid by the address owner.

Estimated value change is a separate calculation

The address report’s Value change view uses an average cost model. Historical market values of inflows build an estimated baseline. An outflow removes a proportional part of that baseline. The model compares that portion with the outflow’s historical value. It also compares the remaining modeled BTC with its current market value.

Other comparisons can use different methods, such as periods adjusted for flows. Read the method shown beside each measure. A model cannot determine whether a Bitcoin transfer was a purchase, a sale, a gift, or a movement between someone’s own addresses.

When an estimate is limited

Missing transaction history or historical prices can make an estimate partial or unavailable. Some calculations or downloads require additional access, and very large histories may remain unsupported. The report should tell you which limitation applies. Missing data is not a zero value.

What these numbers do not establish

They do not establish an owner’s actual acquisition cost, investment profit, sale proceeds, or taxable gains. Use them to understand changes in market value and Bitcoin activity within the stated scope.

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