Evidence row 70370

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/crypto/hmac"
    ]
  ],
  "name": "api.x402node.dev/crypto/hmac",
  "owner_address": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e",
  "raw": {
    "accepts": [
      {
        "amount": "8000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
        "scheme": "exact"
      },
      {
        "amount": "8000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
        "scheme": "exact"
      }
    ],
    "description": "HMAC calculator, HMAC-SHA256 SHA512 SHA1 MD5, message authentication code, hash with secret, signed hash, API request signing, webhook signature, JWT signature. Compute HMAC of a message with a secret key using any standard hash algorithm. Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "algo": "string",
              "message": "string",
              "secret": "string"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "algo": {
                      "description": "Algo (optional)",
                      "type": "string"
                    },
                    "message": {
                      "description": "Message (optional)",
                      "type": "string"
                    },
                    "secret": {
                      "description": "Secret (required)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "secret"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-18T15:52:36.748Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-18T15:52:36.548Z"
    },
    "resource": "https://api.x402node.dev/crypto/hmac",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "HMAC calculator, HMAC-SHA256 SHA512 SHA1 MD5, message authentication code, hash with secret, signed hash, API request signing, webhook signature, JWT signature. Compute HMAC of a message with a secret key using any standard hash algorithm. Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"81bcfd3e306414521c5f191e7b73bdd0d65d7f9f2cc58c5ae8bae56e009a8682","id":70370,"kind":"listing","method":"baseline/1","observed_us":1793025480218547,"prev":null,"subject":"x402_bazaar:https://api.x402node.dev/crypto/hmac","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. 0xc6fddb6c9c7ee2d12b13f7f1a77616425047971fe74ad17ab3e5c50ba1f148bb
2. 0x06cb18c9f78052800eb2353fd7bd3f512529fdaa67fdbfe14a9254eddbdb6f61
3. 0x6a88fbcc5a7a8827deecb3280d943cb088790d0aa1a6702ab5db57144afe0972
4. 0x1a390d7293dedadf13fbd75b186f4f3e5a83ef07f2deb0b7c39a365a625372b7
5. 0xe42573066955427b897df52b7f18c8920dd4cc619cc7427d23f4a857306c96d8
6. 0x715aec78828a37ce815269375474a2f87259eba8ea6c3e363ff20db7fc3fcd54
7. 0xcfb1cb006ec35858d36f3e232d5b1d9004d741467d631d03b9f6e29af004c7d8
8. 0x03a5306d03bce3860d57cc45db5be11e7340251692194d564040f1ad80e4c4d9
9. 0x3cb74f649d863784a42a7402ec77a617e6c92048c7401dde9804a59facd677f7
10. 0xd368ac5e994f236560e1d336e12fc30e107d36c297f051b25005ca4791a16aa4
11. 0xed975d3cf9a825217ed3ef7c3e4522f054cfe35b47c462678d64461a93581906
12. 0x9d99c5dad23613921cdfabc849c2dd3c97729992eaa05c4dab5e86e83ed6d220
13. 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae