# The Company an Address Keeps

_which doors advertised this receiving address, and when — signed, from the public chain_


X402 payTo address history, signed from the public chain.

## At a glance

- **Attests:** The whole record: the subject address verbatim and its digest, every signed week the address was advertised with the doors, verdicts and offered terms as the round recorded them, the dated drift between weeks, the subject's standing note verbatim, the caveat, the limits, and the record's evidence hash. The purchase certificate binds the same evidence hash in its attests field.
- **Input:** address (query parameters; input schema and checkout: https://scvd.store/menu/provenance_check?view=compact)
- **Output:** A signed JSON record — the subject address verbatim and its v1 digest, never_seen, one entry per signed week the address was advertised (week, sequence, snapshot digest, the doors with verdict and offered terms), dated drift between weeks, the subject's standing note verbatim when one exists, the shared-wallet caveat inline, the honest limits and how to rederive — its evidence hash bound into the purchase certificate's attests field, served to the buyer at a stable record URL. Instant; reads the signed chain only, never monitoring. 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:** $5 USDC fixed, one-off; nothing here charges again by itself, ever — there is no mechanism that could; delivered instantly
- **Does not attest:** Who operates any door or holds the address: a shared address is a fact about the address, not a verdict about operators, and custodial and platform wallets make unrelated doors share one. Nothing between weekly rounds, nothing about doors our feeds never listed, and never a ranking or a compliance verdict. Delivered to the buyer; the artifact existing publishes nothing.

## About this item

Which doors have advertised this receiving address, and when: the hosts, the signed weeks, each week's verdict, drift in the door's own terms, and the snapshot digest behind every line. Rebuild it from the public chain without our word. No judgment: shared addresses are ordinary, custodians are common, and this store does not grade operators. Your own address is free once you prove it is yours (GET /api/provenance/self for the challenge), and that free reading ends with an offer to publish it, which you may decline.

- **id:** `provenance_check`
- **price:** $5 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/provenance_check?address=<address>` (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:** `address` — fill the `<address>` slot above before paying. The bare door `GET https://scvd.store/api/buy/provenance_check` quotes free and refuses the paid request without it; no money moves.
- **sample:** https://scvd.store/samples/provenance-check.json
- **does not prove:** Who operates any door or holds the address: a shared address is a fact about the address, not a verdict about operators, and custodial and platform wallets make unrelated doors share one. Nothing between weekly rounds, nothing about doors our feeds never listed, and never a ranking or a compliance verdict. Delivered to the buyer; the artifact existing publishes nothing.

House rules: give the receiving address in the address query parameter: an evm address (0x + 40 hex) or a solana pubkey (base58); reads the signed chain and nothing else — no request is made to any door, and nothing private feeds it; delivered to you and never published; no operator field, no score, no identity assertion — pairings and dates only; the subject's standing note rides the artifact verbatim, beside the observation, never instead of it; an address the chain has never seen returns never_seen, which is the answer you paid for; your own address: get /api/provenance/self?address= for the challenge, post it back signed (eip-191), and the same answer is free.

> Five dollars for somebody else's address. Nothing for your own, once you have proved it is your own.