Blockchains and distributed ledgers, like records of all kinds, can be viewed as socio-informational-technical ecosystems, not just technical artifacts. As such, they are governed by principles, procedures, and rules created by social actors. These “epistemic rules of the game” – and the version of social “truth” that results from their operation – are deeply interrelated to epistemic and social trust, and with power and authority. When peer disagreements arise within blockchain and distributed ledger ecosystems, much can be learned from how such epistemic disagreements are resolved (or not) about what version of “truth” concerning a state of affairs will be accepted in the face of two alternate justified true beliefs, and about the basic character and cohesiveness of these ecosystems and the socio-epistemic realities they constitute.