{"v":1,"type":"bragproof/receipt","spec":{"v":1,"claim":"Without a Mapbox access token, the server computes the area, centroid and bounding box of a polygon and simplifies a line.","subject":{"kind":"mcp-stdio","name":"Mapbox MCP server","package":"@mapbox/mcp-server","version":"0.18.0"},"steps":[{"tool":"area_tool","arguments":{"geometry":[[[0,0],[1,0],[1,1],[0,1],[0,0]]],"units":"kilometers"},"expect":{"contains":"Area: 12363.718 square kilometers"}},{"tool":"centroid_tool","arguments":{"geometry":[[[0,0],[1,0],[1,1],[0,1],[0,0]]]},"expect":{"contains":"Centroid: [0.5, 0.5]"}},{"tool":"bbox_tool","arguments":{"geometry":[[[0,0],[1,0],[1,1],[0,1],[0,0]]]},"expect":{"contains":"Bounding Box: [0, 0, 1, 1]"}},{"tool":"simplify_tool","arguments":{"geometry":[[0,0],[0.5,0.001],[1,0]],"tolerance":0.01},"expect":{"contains":"Simplified vertices: 2"}}],"tags":["mcp","geo","maps","geometry"]},"result":{"pass":true,"subjectIntegrity":"sha512-ENAFuXj7rQdOJSpgIEzN2wPItdoc1I1n9yFkSKv4ZQiy/0VrFg5mI1FXdFHZOIIeJPPxXKflCDukwz3shSpZrg==","lockHash":"a222eca738c3e6a3c3e79eca5e9db501a5a5426e880e1f37d54c748e372de89f","steps":[{"tool":"area_tool","pass":true,"outputHash":"b0f3100141034917a0d37aae5bfe8a7d93fc26c503faf78a6873a51d5d178543","outputPreview":"Area: 12363.718 square kilometers"},{"tool":"centroid_tool","pass":true,"outputHash":"fa9d55a35d6552d350aeb9e23e1e3fa54a04e97cbbfea3646f034077e3b8b0b7","outputPreview":"Centroid: [0.5, 0.5]"},{"tool":"bbox_tool","pass":true,"outputHash":"da6ac67a0861af26ead2d4951a056c58664ceaaa08e29a037658fc8b888a218a","outputPreview":"Bounding Box: [0, 0, 1, 1]\nSouthwest: [0, 0]\nNortheast: [1, 1]"},{"tool":"simplify_tool","pass":true,"outputHash":"a0ea30e430c9b81a4146b0f3536e4f4c3de464e4edc3949bfbf68de9de1fe838","outputPreview":"Geometry simplified:\nOriginal vertices: 3\nSimplified vertices: 2\nReduction: 33%"}],"startedAt":"2026-11-12T00:33:35.424Z","finishedAt":"2026-11-12T00:33:46.446Z","runnerVersion":"0.1.0"},"bodyHash":"6929f227e0ba270d353c2201ced7d60d7179d7118d9673b93c1eac0d356f06ab","evidence":{"kind":"github-actions","token":"eyJhbGciOiJSUzI1NiIsImtpZCI6IjM4ODI2YjE3LTZhMzAtNWY5Yi1iMTY5LThiZWI4MjAyZjcyMyIsInR5cCI6IkpXVCIsIng1dCI6InlrTmFZNHFNX3RhNGsyVGdaT0NFWUxrY1lsQSJ9.eyJhY3RvciI6Iml0c0hhZGRhZCIsImFjdG9yX2lkIjoiMTE0NzMyNjEiLCJhdWQiOiJicmFncHJvb2Y6NjkyOWYyMjdlMGJhMjcwZDM1M2MyMjAxY2VkN2Q2MGQ3MTc5ZDcxMThkOTY3M2I5M2MxZWFjMGQzNTZmMDZhYiIsImJhc2VfcmVmIjoiIiwiY2hlY2tfcnVuX2lkIjoiMTMwODg1MzM0MDIxIiwiZXZlbnRfbmFtZSI6IndvcmtmbG93X2Rpc3BhdGNoIiwiZXhwIjoxNzk0NDQzOTI2LCJoZWFkX3JlZiI6IiIsImlhdCI6MTc5NDQ0MzYyNiwiaXNzIjoiaHR0cHM6Ly90b2tlbi5hY3Rpb25zLmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImpvYl93b3JrZmxvd19yZWYiOiJpdHNIYWRkYWQvYnJhZ3Byb29mLy5naXRodWIvd29ya2Zsb3dzL2NoZWNrLnltbEByZWZzL3RhZ3MvY2hlY2stdjEiLCJqb2Jfd29ya2Zsb3dfc2hhIjoiNmJhMjljODBmZGQ3ZTQwYmIyZTY4MTM3MDY3NGJhZGVhZDEwOWRkNiIsImp0aSI6ImFjOGYwMmUwLTdlMWItNDgzZS04ZTBmLWJiYzRhMzU4YWExYyIsIm5iZiI6MTc5NDQ0MzMyNiwicmVmIjoicmVmcy9oZWFkcy9tYWluIiwicmVmX3Byb3RlY3RlZCI6ImZhbHNlIiwicmVmX3R5cGUiOiJicmFuY2giLCJyZXBvc2l0b3J5IjoiaXRzSGFkZGFkL2JyYWdwcm9vZiIsInJlcG9zaXRvcnlfaWQiOiIxNDU0NjIxMTgzIiwicmVwb3NpdG9yeV9vd25lciI6Iml0c0hhZGRhZCIsInJlcG9zaXRvcnlfb3duZXJfaWQiOiIxMTQ3MzI2MSIsInJlcG9zaXRvcnlfdmlzaWJpbGl0eSI6InB1YmxpYyIsInJ1bl9hdHRlbXB0IjoiMSIsInJ1bl9pZCI6IjQzMTI4MDYyMzkzIiwicnVuX251bWJlciI6IjMiLCJydW5uZXJfZW52aXJvbm1lbnQiOiJnaXRodWItaG9zdGVkIiwic2hhIjoiMzYyYzg4ZmE2M2JkZWYxZWNlZDJmN2M4NDJjZWMzMDhhMzg2MzQxNyIsInN1YiI6InJlcG86aXRzSGFkZGFkQDExNDczMjYxL2JyYWdwcm9vZkAxNDU0NjIxMTgzOnJlZjpyZWZzL2hlYWRzL21haW4iLCJ3b3JrZmxvdyI6InNlZWQiLCJ3b3JrZmxvd19yZWYiOiJpdHNIYWRkYWQvYnJhZ3Byb29mLy5naXRodWIvd29ya2Zsb3dzL3NlZWQueW1sQHJlZnMvaGVhZHMvbWFpbiIsIndvcmtmbG93X3NoYSI6IjM2MmM4OGZhNjNiZGVmMWVjZWQyZjdjODQyY2VjMzA4YTM4NjM0MTcifQ.36_7CrrbeYpxp6VB-0Pd9pFN_Wv0c_pHtfoPyFxkTzlbz8SXYs25gAIko8RfU5coLRMWhI9pUHuyz9fWPVManZiQbL2KA1wzWdOmlTPbx8sFQjratdmihMv-_13o5r_UPtFgvqn099Db4loCje4hbWyMm47w644DWRk08qKlzK0xBSqssscc7BnmdfkfCJCB7d40c5mPcu0xdcff8h68xoPNUBzDIjteQa01bT_Z6b0CnshdAJbNdFRs5X7t4c_kfRsksuNyFCsn-JvmILst20hU1ep5v1xVQmfhGvVv7QHZR9rvGtp_MNgGhHL8HqaBf9G5W9Z17kHqX-jnhZu0ug"}}