checksumMd5
The Base64 encoded, 128-bit MD5 digest of the object. This header is present if the object was uploaded with the MD5 checksum algorithm. For more information, see Checking object integrity in the Amazon S3 User Guide.
The Base64 encoded, 128-bit MD5 digest of the object. This header is present if the object was uploaded with the MD5 checksum algorithm. For more information, see Checking object integrity in the Amazon S3 User Guide.