{"what":"Stated coverage: observation class × chain × depth. Absence is `none`, never implied. Derived from the modules that already know the chain ids — not a brochure.","schema":"scvd-coverage/v1","matrix_url":"https://scvd.store/.well-known/coverage.json","depths":{"none":"This class does not operate on this chain.","challenge":"We will read a 402 that offers this chain. We do not settle, walk, or read the chain.","read":"We read public chain state (a claimed tx, a wallet window, an oracle).","till":"We accept payment on this rail.","walk":"We pay someone else's door on this rail from the field wallet."},"chains":["eip155:8453","eip155:84532","eip155:137","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"sandbox_chain":"eip155:84532","sandbox_note":"Listed so a subject on it is valid. No production class claims depth there.","matrix":[{"class_id":"settlement_attestation","does":"Independent on-chain read of a claimed settlement. Identifier shape picks the chain.","chains":{"eip155:8453":"read","eip155:84532":"none","eip155:137":"read","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"read"}},{"class_id":"the_statement","does":"Wallet-window USDC in/out, observed from the chain walks, signed by neither party.","chains":{"eip155:8453":"read","eip155:84532":"none","eip155:137":"read","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"read"}},{"class_id":"till","does":"We accept USDC on these rails. Polygon and Solana are flag-gated; the code can offer them.","chains":{"eip155:8453":"till","eip155:84532":"none","eip155:137":"till","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"till"}},{"class_id":"launch_check","does":"One real purchase attempt from the field wallet. The wallet pays Base USDC only.","chains":{"eip155:8453":"walk","eip155:84532":"none","eip155:137":"none","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"none"}},{"class_id":"sanctions_screen","does":"Chainalysis on-chain oracle, Base USDC addresses. Not a Solana screen.","chains":{"eip155:8453":"read","eip155:84532":"none","eip155:137":"none","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"none"}},{"class_id":"service_audit","does":"Point-in-time unpaid (and paid-where-offered) look at a door's 402.","chains":{"eip155:8453":"challenge","eip155:84532":"none","eip155:137":"challenge","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"challenge"}},{"class_id":"standing_watch","does":"Repeated unpaid looks at one door across a window.","chains":{"eip155:8453":"challenge","eip155:84532":"none","eip155:137":"challenge","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"challenge"}},{"class_id":"conformance_watch","does":"The conformance battery, daily, for a week.","chains":{"eip155:8453":"challenge","eip155:84532":"none","eip155:137":"challenge","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"challenge"}},{"class_id":"ward_round","does":"Weekly census walk of listed doors.","chains":{"eip155:8453":"challenge","eip155:84532":"none","eip155:137":"challenge","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"challenge"}},{"class_id":"preflight","does":"Free unpaid read of a 402 challenge. Flags testnet; does not walk.","chains":{"eip155:8453":"challenge","eip155:84532":"none","eip155:137":"challenge","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"challenge"}},{"class_id":"discovery_coherence","does":"Join of a host's machine catalogs: do the surfaces agree. No chain dimension.","chains":{"eip155:8453":"none","eip155:84532":"none","eip155:137":"none","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"none"}},{"class_id":"schema_coherence","does":"Join of required-input schemas on the same route: OpenAPI, x402 catalog, MCP tools. No chain dimension.","chains":{"eip155:8453":"none","eip155:84532":"none","eip155:137":"none","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"none"}},{"class_id":"receipt_coherence","does":"Join of a receipt against the catalog surface the buyer selected. No chain dimension.","chains":{"eip155:8453":"none","eip155:84532":"none","eip155:137":"none","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"none"}},{"class_id":"capability_coherence","does":"Join of claimed capabilities across catalogs: chains, primary transport, schemes, streaming. No live probe this rev. No chain dimension.","chains":{"eip155:8453":"none","eip155:84532":"none","eip155:137":"none","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"none"}},{"class_id":"freshness_coherence","does":"Join of dated catalog facts: as_of and valid_until. No live probe this rev. No chain dimension.","chains":{"eip155:8453":"none","eip155:84532":"none","eip155:137":"none","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp":"none"}}],"does_not_prove":"That a given door on a covered chain will be observed, or that a till rail is lit on this deployment (Polygon and Solana are flag-gated).","corrections_url":"https://scvd.store/corrections"}