https://s3.us-west-2.amazonaws.com/caltechdata/4d/8a/2ecb-c163-4a21-b786-4491e2fcc177/data?response-content-type=text%2Fplain&response-content-disposition=attachment%3B%20filename%3D%22Lev3%3Ametadata.json%22&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIARCVIVNNAP7NNDVEA%2F20250410%2Fus-west-2%2Fs3%2Faws4_request&X-Amz-Date=20250410T180304Z&X-Amz-Expires=60&X-Amz-SignedHeaders=host&X-Amz-Signature=08a1e47f6416c152d0c3a807c98679a78c05ec45f8c8a98e34ae9306b5c59bb1