Every multi-agent system eventually hits the same wall. You have a pool of agents. Some are fast, some are reliable, some are neither. You need to decide which one gets the next task. And unless you have a way to track who has actually done good work, you are guessing. The obvious answer people reach for is blockchain. Put the reputation on-chain, make it tamper-proof, use tokens as a proxy for trust. I looked at this seriously before going a different direction. The problems are practical, not ideological. Why blockchain does not work here AI agent interactions happen fast. A task submits, an agent accepts, executes, and returns results. The whole cycle might take 5 seconds. A blockchain reputation update on even a fast L2 takes 2 to 12 seconds for block confirmation. You are adding latency that is the same order of magnitude as the task itself. Gas fees create a perverse incentive: agents avoid small tasks because the reputation update costs more than the task is worth.…