Uploader: orangera1n (client amd64fre en-us), thelightdeveloper (server both chk and fre)
Upload date: 4/?/25 (client amd64fre en-us), 5/25/25 (server)
Source: internet/betawiki discord (client amd64fre en-us), internet/unknown (server both chk and fre)
Notes:

File Info from 7zip:
Name: 9845.0.140922-1425.FBL_PARTNER_EEAP_SERVER_OEMRET_X64CHK_EN-US.ISO
Size: 4969320448 bytes : 4739 MiB
SHA1: 67c0a08800403e75fa06b920fb1f910499eda9f1
Name: 9845.0.140922-1425.FBL_PARTNER_EEAP_SERVER_OEMRET_X64FRE_EN-US.ISO
Size: 4980299776 bytes : 4749 MiB
SHA1: 6b01211452186e5fd38e8bf1d323c085d2dca5ec
Name: 9845.0.140922-1425.FBL_PARTNER_EEAP_CLIENTPRO-CORE_OEMRET_X64FRE_EN-US.ISO
Size: 4671956992 bytes : 4455 MiB
SHA1: e075cf643026b7944ca9f5d84f20a72c817e2267