Evidence row 453711

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://2s.io/api/food/barcode-lookup"
    ]
  ],
  "name": "2s",
  "owner_address": "0x2b6d4988db4723e6908db86ab2b8dfbc51fc32c5",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
          "name": "USDC",
          "version": "1"
        },
        "maxTimeoutSeconds": 60,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
        "scheme": "exact"
      }
    ],
    "description": "Resolve a food product barcode (UPC, EAN-13, EAN-8, etc.) to structured product metadata via Open Food Facts — the CC0 community-maintained database of >3M food products. Returns product name, brand, ingredient list, allergens, nutriments (per-100g + per-serving), Nutri-Score grade (a-e), NOVA processing classification (1-4), Eco-Score, categories, manufacturing origin, packaging, and product image URLs.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "barcode": "3017624010701"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "const": "GET"
                },
                "queryParams": {
                  "properties": {
                    "barcode": {
                      "description": "6-14 digit UPC/EAN barcode.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "barcode"
                  ]
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "method",
                "queryParams"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1781454341/bazaar-icons/58f7ba8f2b3b8047.png",
    "lastUpdated": "2026-10-27T09:52:11.561Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-12T13:21:13.807Z"
    },
    "resource": "https://2s.io/api/food/barcode-lookup",
    "serviceName": "2s",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Resolve a food product barcode (UPC, EAN-13, EAN-8, etc.) to structured product metadata via Open Food Facts — the CC0 community-maintained database of >3M food products. Returns product name, brand, ingredient list, allergens, nutriments (per-100g + per-serving), Nutri-Score grade (a-e), NOVA processing classification (1-4), Eco-Score, categories, manufacturing origin, packaging, and product image URLs."
}

What the leaf hashes

{"body":"2551bfb546e930924b5424cfd5ef3c65220f8216b7658290d9506a94efc54e44","id":453711,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100656234131,"prev":60317,"subject":"x402_bazaar:https://2s.io/api/food/barcode-lookup","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xf30772cdc7cea6bacecca7ea04516f434fd3b450de7390e6878fc3ddb56d22b3
2. 0x902f72470b063fe83d7a13273d3ca90f81a5a1a7e3ade0d3b0009131a6331069
3. 0xd3ab8723fa23e99f9e15a265e2b77be03c49be5ec0ab64e258cdb24e66bd418d
4. 0xe54ad235416cdcc538e7fed5fe8846b6d7a0cb3e347b819745e59f539ba6a943
5. 0x1cb59ce8269b3e251dcab3ce5899a75a44115e2bce0f2248c7ee717c4818a404
6. 0xb464f9f0bdafe889cb7d98d3a18173afba52ed7b87ddb7a34e875c71c91dc5b1
7. 0x3bce497f5be42066761a1175b9b24bd62d66ef8b56be6a34718fbc48ad22300c
8. 0xb3ca597f925532bcffd685a9b80a06fbbd8e02cb0d1f87d9bf806cc8547c751e
9. 0x488edb8f925ad83fec0ab4707f181872bb5b102321ea7df37bad97eca212a3d9
10. 0x7a5eee890426b6641cf11b3104bdf050668453e657cb972314d327e9437f89b1
11. 0x28e43e19e4365cf2efadc5fbbf1bd505feed75b6f224b5173c306232c3944763
12. 0xc76e7a2a7d72384a3306a63b271737f83983bf378cba5d40efe61cfc57eb7d40
13. 0x47993ad5e402c748d96928c5127292d12f5f590d15cf544698f6bb348ad7dc9b
14. 0xce1471491ffb52101d7cd9884cca0fb37a9496f6e8250375054907d24a35d04f
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4