Evidence row 118944

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://qr.openverbs.com/v1/qr"
    ]
  ],
  "name": "Generate QR code",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Render text (URL, vCard, Wi-Fi config, …) as a QR code — SVG string or PNG data URL.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "format": "svg",
              "size": 64,
              "text": "example"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "ecc": {
                      "description": "Error-correction level. Defaults to M.",
                      "enum": [
                        "L",
                        "M",
                        "Q",
                        "H"
                      ],
                      "type": "string"
                    },
                    "format": {
                      "description": "Output format. Defaults to svg.",
                      "enum": [
                        "svg",
                        "png"
                      ],
                      "type": "string"
                    },
                    "margin": {
                      "description": "Quiet-zone modules. Defaults to 4.",
                      "maximum": 20,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "size": {
                      "description": "Image width in px. Defaults to 256.",
                      "maximum": 2000,
                      "minimum": 64,
                      "type": "integer"
                    },
                    "text": {
                      "description": "Content to encode.",
                      "maxLength": 2000,
                      "minLength": 1,
                      "type": "string"
                    }
                  },
                  "required": [
                    "text"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T05:38:33.519Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T05:38:33.264Z"
    },
    "resource": "https://qr.openverbs.com/v1/qr",
    "serviceName": "Generate QR code",
    "tags": [
      "generate qr code",
      "qr code api",
      "create qr code",
      "text to qr code",
      "url qr code generator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Render text (URL, vCard, Wi-Fi config, …) as a QR code — SVG string or PNG data URL."
}

What the leaf hashes

{"body":"764fe700b0eb248f129304f99e11c02476554c2d11e205c706e4de8dde4ee3c8","id":118944,"kind":"listing","method":"baseline/1","observed_us":1793025614044926,"prev":null,"subject":"x402_bazaar:https://qr.openverbs.com/v1/qr","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xb5b505c0d1424c88701e3cb80ee7b0d40d4f093d2ea5ca15557181529b2e7d1d
2. 0xd1e1e1252b936377203366fd8f25063a00e27ebbba65fdd2f62050128b6fab88
3. 0x609912ae4decbd6520a3efcde9853a655e1e734f683d5d4f57f8d92834e73e12
4. 0x123077d77b18649d40cdead93e4836429d6ee2fa94a6c0889c999a806b0966cf
5. 0xe5ccac9a0c4d9e43eecedc0fa73961f9ab9663fd15cddf2f0b67ba8171b3edca
6. 0x8fe488545fa860b322546eb823c4502b6156ec058f8967711d1b89b0bde64254
7. 0xcd38ad2c268e261e1645f54682d20428ce8db788240efc286045956f2393f74a
8. 0xa96a1259630d6a381be9b64470d5c008be86aa599249e6467e88fecc99829bc7
9. 0x77da061a5d997367e300fc37c99e3d47e8ed28eca3771a36e29312d8972845c6
10. 0xfa2167cea96987427da9b60b2059258d339fc6e57b778e13e60f342a723ebd0f
11. 0x0f199646652e20987f8f0e4e8bd21993538b0737cd758d5cbc6ebcaaa02763a3
12. 0x7a0f1751de1946feff7d8c8afc737dcc4d35f110809c15aa0fdb8363a9e31b2b
13. 0x0d86419ca1dd0b62fd8b22ea2e8c74d441312cec3116a467bea429b43e026565
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae