Sumplus Agoranomos

AI suppliers can bill for shortened, missing or repeated work. An agent’s explanation should not authorize a treasury transfer. Sumplus Agoranomos separates payment proposals, deterministic evidence verification and owner-controlled spending policy.

EIP-712 binds each case to its token, recipient, payment ceiling, evidence hash, rule version, expiry, chain and contract. The settlement contract rejects agent self-signing, altered recipients, excess amounts, expired or cross-chain proofs and replayed intents. Cumulative spending per recipient triggers owner approval across separate cases.

Try the interactive demo: https://sumplus-real.github.io/agoranomos-arbitrum/

Watch the 90-second demo: https://youtu.be/x1lE_p4HCKg

Source and reproducible checks: https://github.com/sumplus-real/agoranomos-arbitrum

Validation: 35 contract tests and 9 verifier checks. The local EVM experiment executes a 0.20 mock-token settlement and a separate 0.10 payment after owner approval, plus six rejection controls. The public browser demonstration uses synthetic evidence and simulation. Public Arbitrum Sepolia deployment is complete: https://sepolia.arbiscan.io/address/0x8d38dbad863f7bf2b32fc227243a5092afad90e6 . Live testnet verification executed a 0.20 test-USDC settlement and a separate 0.10 test-USDC payment after owner approval, with six rejection controls passing. Settlement transaction: https://sepolia.arbiscan.io/tx/0x637ff59f80fd9c0e0e3154152b2484f16560fd63d16183039ab290d998eec573 . Approval transaction: https://sepolia.arbiscan.io/tx/0x18b6ea58f587e3bebb79698d3ef9a69f1b83d9c1101e8c22917e3278a90f460b . There is no external customer adoption, live AI-model call or current TEE deployment claim. The verifier and evidence ingestion remain trusted components.

Existing code: reuses the Sumplus baseline 550680e from September 28; the repository documents pre-existing work and this entry’s additions.