Abstract: A system and method for operating a peer-to-peer blockchain network, for the purpose of creating and transferring digital electronic value tokens on a distributed, shared ledger. The invention uses Physical Unclonable Function (PUF) technology to create value tokens and prevent double spending of tokens, by enabling peers on the network to verify each others' uncounterfeitable identities. The peer devices are photovoltaic solar panels containing embedded PUF technology. The number of new value tokens they are entitled to create is determined by the amount of solar electric power they produce, and double spending is prevented by a consensus mechanism using the trust between peers enabled by PUF technology.