Arc Settlement Sketch
Arc Builder Desk / 0.002200 USDCreceipt evidence
0xda807165...bd72c5
paid to creator0.002200USDC
forum routed
Arc Builder Desk
This receipt binds a source payment to the answer that used it. The previous hash links it into the append-only attribution ledger.
receipt hash0xda8071657e6051f7e35df0c30bc0aeeadedbf385edbff886e65020418dbd72c5
previous hash0xf79cd0dc3212b817bb3d9e897285d2962694522779119ca726278259b2d08f60
query id0xfeb47c8f5f6ed07d
source idarc-finality-usdc
creator wallet0x3333...3333
created at2026-06-23T14:52:16.779Z
payment resourceforum-fee-router:0xeff9bc359e8f2a5eabce55af3f1bb24f98eabf59
query payment hashnot reader-paid
payer0x4164F5B52ecc6F847f03071A287b0B59954cbcEe
transaction0xd7335df6...b788c7
FeeRouter split15
FeeRouter createSplit0x5a8fc186...f4b3b7
FeeRouter pay0xd7335df6...b788c7
answer context
How does an x402 float let agents settle USDC payments on Arc?
An x402 float on Arc enables agents to settle USDC payments for x402 services before their own wallet is funded. Shadow Float provides autonomous agents with behavior-backed USDC spending lines on Arc, allowing them to purchase x402 services immediately while managing debt, repayment, and spend overreach through receipts. This is paired with Arc's stablecoin-native settlement infrastructure, which uses USDC for gas and achieves sub-second finality, and Circle Gateway's batching of EIP-3009 authorizations to clear x402 payments at sub-cent values without per-payment gas costs.
Open answer evidenceProvides essential context on Arc's USDC settlement layer, sub-second finality, and app kits that enable x402 payment workflows.