These are all known good SHA-1 checksums for SMB1 ROMs in the No-Intro database.
EA343F4E445A9050D4B4FBAC2C77D0693B1D0922
383AD8E3890A95DE9595F0A6087648F51177DA13
663DDEF71CC808C5382A3426EF6D03B5499A51C8
2F939ECA208F1F15ADDB560C9F72EB01A2951B7F
92E9C4F35D90A45407DE4017353FD07B27004C03
AB30029EFEC6CCFC5D65DFDA7FBC6E6489A80805
D88140962DDAD5B852928E2E3EE88F295456D250
39FE485D865014F594B5F59345FD7587893C6F35
1521C6A0112E83D3ACDFAD29680E82427F9BAC28
CC41F4B229DF01A5ADF44C63B6C60E766A73C1AD
BE560F0A8DE05E432B34BE768198EF3DEFB13CB6
C05817C5B7DF2FBFE631563E0B37237156A8F6B6
D245E41A2B590F7D63666B0772CBDDFB26F254A2
BEE927B5FFE277EBD537B0872D2424EEAC37B8E3
B83DD73D3D6049450BB8092D73C3AF879804F58C