As a developer, I need to understand the usage rules for OpenStreetMap's standard map tiles. Find the official tile usage policy and identify the key requirements for integrating these tiles into a web application, specifically regarding request frequency, local caching, and the exact attribution text or link required for display.
Navigate to 'tile.openstreetmap.org'. Locate and navigate to the 'Tile Usage Policy' page. Identify the policy on bulk downloading or request frequency. Identify the requirements or recommendations for caching tiles locally. Locate and extract the specific attribution text or link required for displaying the map tiles.
Successfully navigate to the official tile usage policy page on operations.osmfoundation.org. State that bulk downloading of tiles is prohibited and that usage should be on-demand. State that tiles must be cached locally according to HTTP Expiry Header, or for a minimum of 7 days. Provide the exact attribution text or link required, which includes attributing to "OpenStreetMap" and linking "OpenStreetMap" to 'openstreetmap.org/copyright'.