{"edition":"v1","currency":"USD","checkout":{"method":"POST","path":"/api/county/checkout","content_type":"application/json","example":{"sku":"county-ca-01-5","request_id":"0bf6bd67-5293-44aa-95bc-b2cc3d2ef221"},"instructions":"Generate a fresh UUID for a new order. Reuse it only to retry that order. Return checkout_url to the payer for payment authorization. Keep session_id private."},"delivery":{"method":"POST","path":"/api/county/download","body":{"session_id":"<session_id from checkout>"},"success":"ZIP bytes, Content-Disposition filename and X-Archive-SHA256. Compare with archive_sha256 in the catalog.","unpaid_status":403}}