No, but you don't need them to verify its authenticity... It's the Namco System 1 board, and if its legit it will be populated with mask ROMs.
This is a picture of a converted Splatterhouse, notice how the entire board is populated with EEPROMs (a "real" one won't look like this)?
EEPROM (UV erasable/writable)
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
Mask ROM (its photo-lithod at the factory directly from the source mask, cannot be "written" period)
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8V9EMERw0WSIPnDYlCZ7sSr7mAiCLRCyRB86lsSg0yKYBmfmr9SmHAgiQVkiCjR2TRaQ5tMAhWq9Fr2lrhIPBbEQUsNsqiwhzGAELdi8Iyq0te0OB4LeiCnh9l0mODmt8wEAydFvxGHa8Q8AjkVtRBWw2Bp0zLGAHotmIwzHiHtBC2og0YfBsZORoEqcRhmPjM0GFuRBqoYZjJytAlRXwrHxmbMLciDXRotaIaIC2IiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIgIiICIiAiIg//2Q==
Sometimes you see a mixture of EEPROMs and mask ROMs, these are often times still legit boards that either had repairs or sometimes even factory made conversions in rare examples.