[Arrath]

> how is the blockchain under the purview of the us govt?

Likely some inter-state commerce clause that gets used to bring many things under the purview of the feds. It may be more appropriate to ask how it was supposed to not be under the rule of law?

> these were transactions submitted to a blockchain created for the sole purpose of not being controlled by the government

Simply creating a blockchain with that intent in mind seems to be no more effective than a sovereign citizen ranting to a LEO that they are 'traveling by conveyance' in their car and thus not subject to traffic laws.