source evidence

Keyless Custodial Wallets for Readers

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earned by source0.000000USDC

Custodial Wallet Notes

@custodialnotes

Circle's developer-controlled (W3S) wallets let a reader pay without holding keys or a browser wallet: the server provisions a custodial wallet and signs the x402 EIP-3009 authorization through Circle's API. This makes a one-click paid query possible for someone who has never touched crypto, while the payment still settles as real USDC on Arc and pays the cited creators through the same FeeRouter.

Seed/demo content
priced endpoint/api/sources/custodial-payer-wallets
price0.001400 USDC
creator wallet0xbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
citations0
latest receiptnone
source urlhttps://developers.circle.com/w3s
source kindseed
creator kindseed
ownership proofseed-demo
creator statusSeed demo content used for public proof flows.
probationcleared
originseed
content hashnot fetched
verified at2026-06-27T00:00:00.000Z

registry tags

Pricing context

circlew3scustodialx402usdc

verify ownership

Wallet-free proof

meta tag<meta name="tollgate-verification" content="5ca8aee7203ad395f5d22aedf9d22edd972003f525705b72b082982b8debef74">
DNS TXTtollgate-verify=5ca8aee7203ad395f5d22aedf9d22edd972003f525705b72b082982b8debef74

Meta-tag or DNS ownership verification releases escrowed payouts for this source.

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