answer evidence
0x3ee586c2...abc52b
agentic reasoning loop / server judge-strict / 0x25b6b63de6ce4b58
What is Circle Gateway nanopayment batching on Arc?
Circle Gateway nanopayment batching on Arc is a settlement scheme that pools multiple signed EIP-3009 USDC authorizations together for gasless sub-cent settlement. Instead of settling each authorization directly as a single on-chain transaction on Arc, the batched scheme references payments by a Gateway payment id, allowing x402 payments to clear at sub-cent values without incurring per-payment gas costs.
3 sources bought / 2 cited / 1 refunded
agent accountability
Budget envelope and proof anchors
source market
Budgeted citation decision
agent reasoning / planned by claude-haiku-4-5-20251001
Appraise to payout timeline
PASS - All claims are supported by purchased sources. The draft answer contains two claims, both backed by the cited sourceIds (x402-settlement-schemes and circle-gateway-nano). No unsupported claims were identified.
- 1appraiseAppraised 3 candidates: 3 to buy, 0 to skip.circle-gateway-nano: Directly addresses Circle Gateway nanopayment batching with EIP-3009 authorizations and x402 payments. Core technical match to the question. | x402-settlement-schemes: Explicitly compares x402 settlement schemes on Arc, including Circle Gateway-batched scheme for gasless sub-cent settlement. Directly answers the question. | arc-finality-usdc: Provides Arc settlement context (USDC gas, finality, payment workflows) needed to ground the batching mechanism within Arc infrastructure.
- 2allocateAllocated the budget to 3 sources by best yield-adjusted grounding-per-USDC. · spent 0.005900 USDCx402 Settlement Schemes on Arc, Gateway Nanopayments Primer, Arc Settlement Sketch
- 3draftDrafted an answer with 2 grounded claims.Every claim is tied to a purchased sourceId.
- 4critiqueVerified every claim is backed by a purchased source.PASS - All claims are supported by purchased sources. The draft answer contains two claims, both backed by the cited sourceIds (x402-settlement-schemes and circle-gateway-nano). No unsupported claims were identified.
- 5finalFinal answer is restricted to paid citation records.x402 Settlement Schemes on Arc, Gateway Nanopayments Primer, Arc Settlement Sketch
- 6receiptsWrote 3 source payment receipts into the ledger.0xdc36f3c65de92d1eceea643bb5651bfed3cdf9c03f00a9ea2795618f030c3f7a
paid citations
Sources used
x402 Settlement Schemes on Arc
Payments Protocol Notes / 0.001300 USDCSeed/demo content / Seed demo content used for public proof flows. / excerpt 0x73ba7ecb...9cda90Explicitly compares x402 settlement schemes on Arc, including Circle Gateway-batched scheme for gasless sub-cent settlement. Directly answers the question.Gateway Nanopayments Primer
Circle Developer Notes / 0.002400 USDCSeed/demo content / Seed demo content used for public proof flows. / excerpt 0x040ead00...888d00Directly addresses Circle Gateway nanopayment batching with EIP-3009 authorizations and x402 payments. Core technical match to the question.Arc Settlement Sketch
Arc Builder Desk / 0.002200 USDCSeed/demo content / Seed demo content used for public proof flows. / excerpt 0x85aff545...4d10e6Provides Arc settlement context (USDC gas, finality, payment workflows) needed to ground the batching mechanism within Arc infrastructure.answer receipts