# Batch Spot Check


Read existing host records as a signed batch; no live probes or rankings.

## At a glance

- **Attests:** The complete observation.record, including its signed source readings, dates, gaps and comparison or manifest. SHA-256 of observation.signed_payload is bound into certificate.attests. observation.signature_jcs covers the RFC 8785 canonical record.
- **Input:** hosts (query parameters; input schema and checkout: https://scvd.store/menu/batch_spot_check?view=compact)
- **Output:** Read existing host records as a signed batch; no live probes or rankings 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:** $0.01 USDC fixed, one-off; nothing here charges again by itself, ever — there is no mechanism that could; delivered instantly
- **Does not attest:** Live endpoint state, continuous coverage, successful future payment or delivery, or provider safety. No new observations does not mean no endpoint changes. Missing dates, different endpoints and different batteries cannot establish a comparable change.

## About this item

The books on up to 10 hosts in one purchase: a signed manifest containing each host's signed Spot Check, observation dates, coverage and gaps. Reads existing records only; no live probes, rankings or provider recommendation. Fixed price even for a smaller batch. Each host's underlying facts remain free at /corpus/host/{host}.json. The purchase adds assembly and certificate binding.

- **id:** `batch_spot_check`
- **price:** $0.01 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/batch_spot_check?hosts=<hosts>` (USDC over x402 v2 on Base, Polygon, Arbitrum, World, Solana, or USDC over MPP (evm/charge) on Base for every shelf item, every publication page and the commission desk)
- **required inputs:** `hosts` — fill the `<hosts>` slot above before paying. The bare door `GET https://scvd.store/api/buy/batch_spot_check` quotes free and refuses the paid request without it; no money moves.
- **sample:** https://scvd.store/samples/batch-spot-check.json
- **does not prove:** Live endpoint state, continuous coverage, successful future payment or delivery, or provider safety. No new observations does not mean no endpoint changes. Missing dates, different endpoints and different batteries cannot establish a comparable change.

House rules: a json array of 2 to 10 distinct bare hostnames. fixed batch price, including smaller batches; no live probes. unknown hosts remain named gaps.; every requested host appears in the signed manifest; an unknown host is not a failed instrument; if an instrument fails, the batch refuses before settlement; no successful-looking partial package; submitted host sets are available at the returned artifact url; share that link only by choice.

> A penny for the set, with a line for every host and every blank left visible.