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That check is in my code already. It can fail if the two bots' databases aren't consistent, which seems to be the case here.

Ah, interesting. I wonder if checkpoints published on the Steemit blockchain would be a good idea, kind of like how Gridcoin takes the BOINC data and verifies it with superblocks. That way the databases could sync up every day or so to ensure they are correct. It could even be a hash of the database as if a given block height. Maybe seed nodes could be keeping this information in sync.

Maybe one of these days I'll play around with building a POCKET validator. I mentioned your project in my recent witness report. I think it's a really cool thing. :)