{"generated":"2026-10-19","source":"OpenStreetMap natural=reef / natural=shoal / natural=coastline (coarse warning layer)","licence":"ODbL 1.0","attribution":"© OpenStreetMap contributors, Open Database License (openstreetmap.org/copyright). Derived database: docs/launch/odbl/.","block":{"s":45,"w":-55,"n":50,"e":-50},"res":0.05,"W":100,"H":100,"n":877,"cells":"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"}