Core Mental Model
PTERI's five constraints: wallet is identity, private key is authority, signature is intent, Litecoin settles, and servers never custody.
Universal Trust Layer
One sign-and-verify primitive replaces passwords, OTPs, API keys, and automation secrets across login, payments, APIs, and AI agents.
What PTERI Is Not
PTERI excludes tokens, OmniLite, NFTs, RWAs, IPFS, and smart contracts by design, keeping only what strengthens cryptographic trust.