{"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":30,"w":130,"n":35,"e":135},"res":0.05,"W":100,"H":100,"n":1360,"cells":"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"}