{"v":2,"collectionId":"44152","ts":"2026-10-27T11:43:56.229Z","submitter":"ixo16mwf9s439v46dxhqy8gg2tua98q6qhjh0xpcre","deliverable":"Rivers carry dissolved minerals worn from rocks into the sea, and when sea water evaporates the salt stays behind, so over millions of years it builds up.","alias":"S3 verify-first","via":"mcp"}