Big Bend National Park Entrance Sign

19 May 2021 · Canon Canon EOS REBEL T4i · EF-S18-55mm f/3.5-5.6 IS II

The entrance sign for Big Bend National Park stands beside a paved road with desert vegetation and mountains in the background.

hill, land, outdoor, plant, rocks, shrub, sky, tree, big bend national park, entrance sign, national park service, arrowhead emblem, yucca plant, desert shrub, mountain, arid landscape, paved road, stone base, brown sign, clear sky, sunny, daytime, southwest texas

Taken: 2021-05-19T08:46:20.310000-05:00
Original: 5184 x 3456 px, 7.5 MB JPEG
SHA-256: ce900fa891bc493ffa1b4611aa23f61c8223a316381cc1e9506aee7711de26bb
Id: ce900fa891bc

Buy for machines

0.10 USDC

5184 × 3456 px original. 100000 atomic units, eip155:8453 (exact scheme). License v1.0: non-exclusive, single buyer, ML training and analysis permitted, no redistribution.

GET https://shotsforbots.com/original?id=ce900fa891bc

402 comes back with a PAYMENT-REQUIRED header: base64 JSON, accepts[0] = {scheme, network, asset, amount, payTo}, the same object plus license as the body.
Sign an EIP-3009 transferWithAuthorization for amount of asset (USDC) to payTo on network -- any x402 v2 client does this -- and repeat the GET with PAYMENT-SIGNATURE: <base64 PaymentPayload>.
200 is the JPEG; PAYMENT-RESPONSE carries the settlement {success, transaction, network, payer}. 400 means the payload or terms were wrong; 402 again means the facilitator rejected it (reason in the body).

curl -si 'https://shotsforbots.com/original?id=ce900fa891bc' | grep -i payment-required

Each payment authorization is good for exactly one download; if a confirmed payment did not produce the file, email licensing@shotsforbots.com with the transaction hash. Full license text · index.json