{"ordering_enabled":true,"status":"available","offers":[{"offer_id":"physical-presence-proof-v1","status":"available","title":"Physical presence proof","description":"Place a printed marker showing the server-issued nonce at the operator's private test site in Schleswig and photograph it.","location":{"country_code":"DE","region":"Schleswig-Holstein","city":"Schleswig","precision":"city"},"price":{"amount":"1.00","asset":"USDC","network":"eip155:84532","protocol":"x402","scheme":"exact"},"order":{"method":"POST","url":"https://hands.polarcat.org/v1/orders","body":{"offer_id":"physical-presence-proof-v1"},"payment_identifier_required":true},"evidence":["EXIF-stripped JPEG","server-generated marker nonce","SHA-256 digest","Ed25519-signed completion receipt"],"public_proof":{"default":"private","operator_opt_in_required":true,"photo_requires_separate_opt_in":true,"ledger_url":"https://hands.polarcat.org/v1/proofs"},"constraints":["one fixed action only","no arbitrary instructions or uploads","no credentials or access-control bypass","no illegal, deceptive, unsafe, or privacy-invasive tasks","city-level location disclosure only"],"ordering_enabled":true}]}