# Settlement Reconciliation


Reconcile an agent's authorized spend against what settled on chain, signed.

## At a glance

- **Attests:** The whole observation: the transaction asked about, the USDC movement found, any fixed authorization value or declared ceiling, WHERE THAT CEILING CAME FROM, whether it was observed or merely declared, the headroom between the two, the chain head at read time, and the moment. An EIP-3009 no_discretion reading requires the selected transfer itself to be paired with its authorization; a nonce elsewhere for the same payer is insufficient. Approval co-occurrence is not evidence of allowance consumption. The current reader establishes the reported chain, receipt identity, status and block/head before signing. Older observations can overstate attribution or lack these context checks: consult /corrections before relying on them. cap_observed is a signed field in its own right, because the difference between a ceiling we read off Base and a ceiling somebody told us is the entire weight of this artifact.
- **Input:** tx_hash (query parameters; input schema and checkout: https://scvd.store/menu/settlement_reconciliation?view=compact)
- **Output:** A signed JSON observation of one Base transaction reconciling two numbers — the USDC that moved and an attributable fixed authorization value or declared cap — with cap_source and cap_observed naming where the ceiling came from and whether we saw it ourselves. Verdicts: within_cap, over_cap, no_discretion (EIP-3009, where the value was fixed in the payer's signed digest), cap_not_observable, or no_settlement. Certificate binds the evidence hash; free public record URL. Instant. Every artifact carries a cert_id and verifies free at https://scvd.store/api/verify/{cert_id}.
- **Cryptography:** ed25519 signature by this store's key, published at https://scvd.store/.well-known/scvd-signing-key and carried inside every 402
- **Verify:** GET https://scvd.store/api/verify/{cert_id} — free, no account, no rate limit, checkable offline with the published key
- **Price and fulfilment:** $0.006 USDC fixed, one-off; nothing here charges again by itself, ever — there is no mechanism that could; delivered instantly
- **Does not attest:** That a DECLARED ceiling is real. Where cap_observed is false the number came from whoever commissioned the receipt — generally the party it benefits — and the signature covers only that we were told it, never that it is true. It cannot establish allowance consumption from approvals in this or earlier transactions: 'no cap observed' never means no ceiling existed. RPC evidence is not consensus proof. And an over_cap on a declared ceiling is a fact about what the caller said, not about the chain.

## About this item

Give a Base transaction hash to receive a signed observation of the USDC movement and any attributable authorization limit. A paired EIP-3009 authorization fixes the selected transfer's value: no discretion. An Approval in the same receipt does not establish which allowance funded that transfer. Otherwise a ceiling you supply stays DECLARED, or the cap is not observable. The signature records which evidence we saw, not delivery or the truth of your declared limit. Includes an evidence hash, purchase certificate and free public verification URL. Older approval-based claims need the correction at /corrections.

- **id:** `settlement_reconciliation`
- **price:** $0.006 fixed, one-off; nothing here charges again by itself, ever — there is no mechanism that could
- **fulfillment:** delivered instantly
- **buy:** `GET https://scvd.store/api/buy/settlement_reconciliation?tx_hash=<tx_hash>` (USDC over x402 v2 on Base, Polygon, Arbitrum, World, Solana, Arc (Circle Gateway), or USDC over MPP (evm/charge) on Base for every shelf item, every publication page and the commission desk)
- **required inputs:** `tx_hash` — fill the `<tx_hash>` slot above before paying. The bare door `GET https://scvd.store/api/buy/settlement_reconciliation` quotes free and refuses the paid request without it; no money moves.
- **sample:** https://scvd.store/samples/settlement-reconciliation.json
- **does not prove:** That a DECLARED ceiling is real. Where cap_observed is false the number came from whoever commissioned the receipt — generally the party it benefits — and the signature covers only that we were told it, never that it is true. It cannot establish allowance consumption from approvals in this or earlier transactions: 'no cap observed' never means no ceiling existed. RPC evidence is not consensus proof. And an over_cap on a declared ceiling is a fact about what the caller said, not about the chain.

House rules: give the base transaction hash (0x + 64 hex) in the tx_hash query parameter. this product reads base only; checkout networks do not change the subject chain; optional narrowing: payer, recipient — a receipt can carry several legs and the largest match is what gets reported; optional declared_cap_usdc: recorded as declared, never as observed, and never allowed to override a ceiling found on the chain; approval alone is not an observed spending cap; a paired eip-3009 value is; observes money only, never delivery; receipt, chain and head checked before payment. invalid context: retry the same payment.

> Six tenths of a cent. The subtraction is free — the disinterested witness who says which number was real is the part that costs.