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Evidence row 125413

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://x402-research-iota.vercel.app/api/x402/invoice-decode
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
c02c70cce0be8a0a6368cd65cbe67a62320f0ac7c99316eed06f8a520804737f
Leaf
0xca76c6454cb3e6c526b0d589d8c26e020e4a690641a13c2446418ee9d8a19560

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-research-iota.vercel.app/api/x402/invoice-decode"
    ]
  ],
  "name": "x402-research-iota.vercel.app/api/x402/invoice-decode",
  "owner_address": "0xa26f179e42836bc4ae0cea997fdfc9602d5b8147",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xa26f179e42836bc4ae0cea997fdfc9602d5b8147",
        "scheme": "exact"
      }
    ],
    "description": "Use before paying any x402 invoice: decodes a base64 PAYMENT-REQUIRED header (query ?header= or JSON body {header}) and checks scheme exact, Base mainnet, Base USDC asset, payTo (EOA/contract/EIP-7702), human amount, timeout; returns verdict ok/warn/fail with reasons. Errors: 400 invalid header. Read-only; never signs or pays.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "header": "eyJ4NDAyVmVyc2lvbiI6Miwi..."
            },
            "type": "http"
          },
          "output": {
            "example": {
              "accepts": [
                {
                  "amount": "30000",
                  "amountUsdc": 0.03,
                  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                  "checks": [
                    {
                      "check": "scheme",
                      "detail": "scheme=exact",
                      "level": "ok"
                    }
                  ],
                  "maxTimeoutSeconds": 300,
                  "network": "eip155:8453",
                  "payTo": {
                    "address": "0xa26f...8147",
                    "kind": "eoa"
                  },
                  "scheme": "exact",
                  "verdict": "ok"
                }
              ],
              "reasons": [],
              "resource": {
                "url": "https://x402-research-iota.vercel.app/api/firm/risk-snapshot"
              },
              "signed": false,
              "verdict": "ok",
              "x402Version": 2
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "header": {
                      "description": "base64 PAYMENT-REQUIRED header value",
                      "type": "string"
                    }
                  },
                  "required": [
                    "header"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "accepts": {
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "resource": {
                      "type": "object"
                    },
                    "signed": {
                      "type": "boolean"
                    },
                    "verdict": {
                      "enum": [
                        "ok",
                        "warn",
                        "fail"
                      ],
                      "type": "string"
                    },
                    "x402Version": {
                      "type": "number"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T13:32:35.938Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-25T13:32:35.827Z"
    },
    "resource": "https://x402-research-iota.vercel.app/api/x402/invoice-decode",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Use before paying any x402 invoice: decodes a base64 PAYMENT-REQUIRED header (query ?header= or JSON body {header}) and checks scheme exact, Base mainnet, Base USDC asset, payTo (EOA/contract/EIP-7702), human amount, timeout; returns verdict ok/warn/fail with reasons. Errors: 400 invalid header. Read-only; never signs or pays."
}

What the leaf hashes

{"body":"c02c70cce0be8a0a6368cd65cbe67a62320f0ac7c99316eed06f8a520804737f","id":125413,"kind":"listing","method":"baseline/1","observed_us":1793025626165797,"prev":null,"subject":"x402_bazaar:https://x402-research-iota.vercel.app/api/x402/invoice-decode","subject_kind":"source_record"}

Proof

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

  1. 0xca76a9d6d21d866c7d9d0a5998000c5fdce2256e7886d2000770ea6999f80042
  2. 0xf03218bc05933d9e74cede59964b3486875ac22ed52a9521d97870ad6fb3be39
  3. 0xd398b1ed40c9e3acfa12563055c3b1388abc2a13351c7eefc5e45b33bd1ef08a
  4. 0x0cb85c1eb919c8b549ca37afbada1b34db8157732ba9213df7af9468b6e306f8
  5. 0x4f293eb0afe7c3fa4852c3b506a54b113ee4476498fd108ef87137f8eeee2526
  6. 0xe53c5dadf2979e5299a7dbe10711c180b692f45753ffea055f4479f381addc58
  7. 0x75d4d73e83850381eedc9771e35b379e53cacf972475a8c2b03759469a9638d8
  8. 0x82e6221f99ba5c071318698def14f7055e40db45efabace42e860c391fd34c3a
  9. 0x5f239c7ea08ed8e208f56415a847ed86745214ff29f09ef6bf4bb80acf4d918f
  10. 0xf29e8f51356c1b4788c06270d1e5deddc4d369add09932704ccd63f7e6f91c95
  11. 0xd854065b5246baf332a9ace158b6f99219183612c97d95e881ab7a7e7fb3bd6b
  12. 0x02a11c0460d1a42b6246e1c715f0c3098d82c39154a56e918e2c22b56ca2c978
  13. 0x985acd37cc044d5aa6ad959194da8e91c81045df83517891ed92f1763a9ab825
  14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
  15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
  16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
  17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON