>After Velocity, upvotes and downvotes will both be allowed during the last 12 hours of the payout period, but their strength (for the same amount of voting power) will decrease linearly from 100% to 0% over that 12-hour period. 

It appears that software mechanics are available to make my decentralized anonymous CAPCHA system a reality, so as to give greater value to upvotes to users who choose to use it.

A link to an old blog post of mine which fleshed out the idea is included below for your reading pleasure.


https://steemit.com/steem/@novacadian/a-decentralized-capcha-annonymous-proof-of-brain-verification