These are all known good SHA-1 checksums for SMB1 ROMs in the No-Intro database. Please note these all use an iNES header, rather than the NES 2.0 header
EA343F4E445A9050D4B4FBAC2C77D0693B1D0922
383AD8E3890A95DE9595F0A6087648F51177DA13
663DDEF71CC808C5382A3426EF6D03B5499A51C8
2F939ECA208F1F15ADDB560C9F72EB01A2951B7F
92E9C4F35D90A45407DE4017353FD07B27004C03
AB30029EFEC6CCFC5D65DFDA7FBC6E6489A80805
D88140962DDAD5B852928E2E3EE88F295456D250
39FE485D865014F594B5F59345FD7587893C6F35
1521C6A0112E83D3ACDFAD29680E82427F9BAC28
CC41F4B229DF01A5ADF44C63B6C60E766A73C1AD
BE560F0A8DE05E432B34BE768198EF3DEFB13CB6
C05817C5B7DF2FBFE631563E0B37237156A8F6B6
D245E41A2B590F7D63666B0772CBDDFB26F254A2
BEE927B5FFE277EBD537B0872D2424EEAC37B8E3
B83DD73D3D6049450BB8092D73C3AF879804F58C