Sources and method

This methodology page explains, in plain terms, how the material you see here is assembled and where each kind of content originates. Nothing on this site is produced by hand-editing a price or a rate; the aim is simply to show provenance so you can judge each item for yourself.

Market prices

Quotations appear solely through an embedded chart supplied by a third-party market data provider. Values can lag real trading and can differ from venue to venue, so treat what you see as indicative rather than definitive. This site does not calculate a price or a rate, and it does not run a currency converter.

Coin profiles

Descriptions of individual coins are drawn from open encyclopaedic sources, principally Wikipedia and Wikidata. Each profile notes the source used and the date on which it was retrieved, so you can trace the origin of the text.

The naira page

The official dollar-to-naira rate is issued by the country’s central bank. The naira page links directly to that publication rather than restating a figure, and no conversion tool is offered.

Guides

Explainers are written as general background only. They are not advice, not a recommendation, and not a forecast of any kind.

Freshness

Content is refreshed whenever the underlying sources change. Where a figure or description looks out of date, the linked source is the authority to check.