receipt evidence

0x1ecf222f...aaa78a

paid to creator0.002400USDC

local proof

Circle Developer Notes

This receipt binds a source payment to the answer that used it. The previous hash links it into the append-only attribution ledger.

receipt hash0x1ecf222f59d2ef67de20f74ca22c237a28eec4eb2870e7fa58d262fbd2aaa78a

previous hash0x0f64e16633bf38c2db58ead6337a98ce06d4b178cb03c58da744f36155670308

query id0x4c7a72d2e044f208

source idcircle-gateway-nano

creator wallet0x2222...2222

created at2026-06-20T14:36:12.433Z

payment resource/api/sources/circle-gateway-nano

query payment hash0x9513aaf404e1da4f8b68a440af403ba4ffb22cf31c9842407fa506ca1d50802a

payerlocal proof

transactionpending settlement

FeeRouter splitnot FeeRouter-routed

FeeRouter createSplitnot FeeRouter-routed

FeeRouter paynot FeeRouter-routed

answer context

How does Tollgate prove paid citations with x402 receipts on Arc?

The paying agent treated "How does Tollgate prove paid citations with x402 receipts on Arc?" as a source-backed answer, not a free scrape. LeptonWeb Lab: A builder log for Tollgate, showing paid citations, receipt hashes, x402 source access, and creator onboarding on Arc. Canteen Research: Lepton asks builders to make sub-cent value move for agents and creators: per article, per call, per second, and per citation. Circle Developer Notes: Circle Gateway batches signed EIP-3009 authorizations so x402 payments can clear at sub-cent values without per-payment gas. It bought the minimum useful bundle of sources, paid each cited creator in USDC atomic units, and wrote a receipt chain that ties the answer to the citations that earned.

Open answer evidence

reader paymentx402 verified

amount0.001000 USDC

payer0x12F2...ba03

payment hash0x9513aaf4...50802a

Gateway Nanopayments Primer

Circle Developer Notes / 0.002400 USDC

Matched x402 in the source registry.