Evidence row 2205256

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.magentlab.com/api/calc/bsa"
    ]
  ],
  "name": "magent",
  "owner_address": "0x836be278f1739fb4308091cd1852f7971bc19ee2",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "name": "USD Coin",
          "paymentFlow": "upfront",
          "resourceUrl": "https://api.magentlab.com/api/calc/bsa",
          "version": "2"
        },
        "maxTimeoutSeconds": 600,
        "network": "eip155:8453",
        "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "name": "USD Coin",
          "receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
          "version": "2",
          "withdrawDelay": 86400
        },
        "maxTimeoutSeconds": 600,
        "network": "eip155:8453",
        "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
        "scheme": "batch-settlement"
      }
    ],
    "description": "Cited Mosteller body surface area. Agents must not invent BSA from model memory;",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "height_cm": 170,
              "height_in": 67,
              "weight_kg": 70,
              "weight_lb": 154
            },
            "type": "http"
          },
          "output": {
            "type": "json"
          }
        },
        "schema": {
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T12:00:26.252Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T12:00:26.146Z"
    },
    "resource": "https://api.magentlab.com/api/calc/bsa",
    "serviceName": "magent",
    "tags": [
      "bsa",
      "mosteller",
      "oncology",
      "calculator"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Cited Mosteller body surface area. Agents must not invent BSA from model memory;"
}

What the leaf hashes

{"body":"51221c6127aad910be5d1294fa851973bd81d004d0ebf569f4d113c355eabd1b","id":2205256,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646957514450,"prev":null,"subject":"x402_bazaar:https://api.magentlab.com/api/calc/bsa","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x4655e8e3f53bd1cbe4f0dac9c6f7ea55ce1f27e75cdd158aaf29d90b2bcd4cb0
2. 0x17295f97b4d32a170250a1acb9ac5e111a77479a9fee808574fb0790d483e469
3. 0x273b043fd5b3adf8bf6fd090646b9c48b8c332b470461243a39ca770fa395944
4. 0xb529b2ca0bdf907e0c64382a68be82294d730c10e92b3c7f5bfe7cb9f0424cae
5. 0xd061b2e9543165edf19e2ce397ffb1bfaf2145c4bd71a977897c203736415b34
6. 0xcdb4ace6b1e683804ddb021f32def3b5a46bd305df357ab5da9c88b32dce0b7c
7. 0x0fa262fd974726b4464169ff2607320ece0f9378b885ecf7e8c26ba67b8171a6
8. 0x395cd37f34e0ae9f78ed348204e4924906173805e523b78b0142d1f68445db0e
9. 0xda298067c5e54dbbc3bc42c96fa0d6765a8fe58e18ffcafbdcf6407b06bd85be
10. 0x0c6e565159e4b5577c99b872830f5da674047aa9e76265b96992308f5382dffe
11. 0xd6ce0209d46ce7cf9a6c01eff144cf152770979661afa3b18a877e99ae9d7ef7
12. 0x774abba83e59d4a0d725432b7aa65c7fd5dc16c3ba4272951c2f4df287092b69
13. 0x95a273bb8932dab7d9961e32e3d3be866bd51e98c7772b268db2595e5869b5c4
14. 0x75634d9d67fe6c75f98d15ecdced550aaaa0b303b51c1355fcc39f82416bc504
15. 0x3217f821997a6d778dcf0814a25b1296c55ab77710c675e7b15695d25a6ce67d
16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af