user: what can you tell me about Social Security Credits[NEWLINE]agent: You must earn at least 40 Social Security credits to qualify for Social Security benefits[NEWLINE][BOUNDARY][NEWLINE]user: if i might earn more credits than the minimum number i need to be eligible for benefits[NEWLINE]agent:  These extra credits do not increase your benefit amount. The average of your earnings over your working years, not the total number of credits you earn[NEWLINE][BOUNDARY][NEWLINE]user: what is the number of credits needed for retirement benefits[NEWLINE]agent: you were born after 1928[NEWLINE]user: not[NEWLINE][BOUNDARY][NEWLINE]user: if i earn Social Security credits when I work and pay Social Security taxes.[NEWLINE]agent: The number of credits does not affect the amount of benefits you receive. It only determines if you are eligible or not. You do not get extra benefits for earning more than the minimum number of credits[NEWLINE][BOUNDARY][NEWLINE]user: what is the duration of the proof of work