登陆校园网后，自动下载了一个名为pieceshash的文件，这是什么

Question

{"MajorVersion":1,"MinorVersion":0,"HashOfHashes":"Cm3OBtAoMPn+GD/LjfXf2xU8Yxj7K8CQqJwMn+87mZ8=","ContentLength":38675556,"PieceSize":1048576,"Pieces":["w5CFzbGXJAAMIgPDnxuBXNnl/sNorFv2S4NQfZkXlOA=","gYfZG5i37MCkGOYpejnEFowabO7bT14LDmGoHLlGHSc=","iEHVZ1BaR6rZ422mpGJ7OXXzMexjfUzPgfGsJNC7ojI=","8/c9568zBkGojCDpFCFHn7XPV9VV1wxkioyqt88RZIY=","b2D4DFrMua1IBFbhSGSxazj0To5GMKa+hLbLJM62zSc=","CePCmbeZrl91GJ21L/VfNptO2rwUqNGcbI/aRGvyAtY=","B7pzQhomwaPHj3nHMnCR8rdZ+aFZctSjm/Y+91sGzq8=","PvKk8Fl5SGbOjCkVnvLoL5vdGI1gYHfKF70t8oBhiyQ=","xK7y1CrmIlMdUCZvL4nsS/JU3w1nQKiB43oLJF30s/E=","GmmRirsvDIf20n5SzC/G9RX+4JhuxKU+jGuZqr1cP9Y=","dnBE6OjcvUuISdu5ebITvjtBs7Y5cT+anC7yyL+eLao=","SOQlSvqprK5ybVZkpYE513FwDFfMN6fSB0uz+DHlZN0=","6FALfBiu/YXhjRwDAsRHHSRXsQ76PwIm1XdzV0IEL8U=","ViwmsdVwEEYgL2y76DtRobK4XCBHUAJXCrtFHV2AGcM=","RLg8E3Jbf2mtrmlAENv9+D2nAVSbwnqgMXBHBrOpOIo=","XE5qY6vv5+cEJBA+xP8AEzu/1lJieSruzykndwB2Cdk=","xEASTe50Ue9r2J8gITTSqOjw4rlIGz64NmWTBPCVb3k=","cfkfxC2eJ04DwPZuCdLvhgm8sWDTBHPEFEud5yGXwN8=","FMJ2w8T1ji9XrHvwrNi+KmfjugnRBo+Qs4bn5NVk+qE=","2BndZvJRqi8UKp45RIiNZKR/0E244l+eEKKhmc+jdoc=","PrIHzlyhaLhXK5Plaxwdmcz3Evm5LK5tyLuvVWybNRw=","0+WF3sCYlxvzzPFYq1yVLnsxNUy56J6yd9fG4xKUgag=","GN0xBPq0/q7U1uAYig9V3v6v74iiGStQakLwYaTPqgY=","TR2iFtP4tGGiHBs3CXxjd1tnDqhTNCMTnx5QqU1DhWk=","DFd5XzAmxt+JCOD2X+Uu1e4hlo+VNavTJgxkf7GPspE=","LGZqaFjzetz1Uvsm/eeMpUzvA16whkeD/6dDSCqAq+4=","8Lw+Z190JXzMlMbBSdrLraDpUNo0QrjTSw9sDc2/KHw=","JX/UHBPmcu2H40MCEZFOhV8Fk6gdrtif0Jjtht8MIUM=","6oSc8BAhGhJGS/5FyZqUDI+Og5BPAjcorU4vH9exm3Y=","XN/bo2JbXX+ubMA+0drdnWgvQZ0PzAfZJYc66SS/lho=","GTghW2qF3KJ7ijJaln1tKPHnrXgjiI6HlO+0IW0K/Kc=","GvmUtSklLNLyRj/iEcRPS602rYwEmYkKoWzKQIzYjnc=","K21BVkZtLKP223peTc7n5WF9r4DAw04XpE9Mst6Zfp0=","4PP+FLMPrQnNKLFoEcHXNUCofoAa/uXrah+ezSc1sac=","6XaQgKbSdmK+zmoGkUZs+uOLQGppEc1QSi89F0DGOCE=","amhD1A3Jwy5u+sbQ6/zA2KU+sQ9STiWKQaIrVOm3f6k=","CxO/HJEzqi5fHCd37osJZywl9TarlmD751P5gDYvvK0="]}

Answer 1

这是一个json字符串。文件内容的含义，必须有相关提示才清楚。