Evidence row 75145

Observed 26 Oct 2026, 14:38 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://fiatdock.com/s/svc_64d3be32-5ced-4d2d-89fb-02132b0088dd
Recorded: 26 Oct 2026, 14:38 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 5c916f4654fad442dc7147a73220f551def4987adb764706214c6b75556de403
Leaf: 0x845d6161989846d0fc598e19087803db3385bd65dc495dd1a5f57f7db1a4bac0

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://fiatdock.com/s/svc_64d3be32-5ced-4d2d-89fb-02132b0088dd"
    ]
  ],
  "name": "FiatDock Marketplace",
  "owner_address": "0xfe257ef6dc89f5b688ac52ef3eb8648c629fa9c4",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xFe257Ef6Dc89F5b688aC52Ef3eb8648C629fA9C4",
        "scheme": "exact"
      }
    ],
    "description": "Pay-per-call: true402 Quant Calculators — Black-Scholes, implied volatility, Kelly, Sharpe, VaR",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "note": "The seller's own response, passed through unchanged. Settlement headers are added: X-FiatDock-Settlement (tx hashes), X-FiatDock-Fee-Bps, and X-FiatDock-Receipt (proof-of-purchase for a review)."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "jsonrpc": {
                      "description": "\"2.0\" — the body is forwarded VERBATIM to the seller's MCP endpoint, so send whatever that server expects",
                      "type": "string"
                    },
                    "method": {
                      "description": "e.g. tools/call",
                      "type": "string"
                    },
                    "params": {
                      "description": "the seller's own tool name + arguments. The example body above is EMPTY on purpose: this listing's required arguments are not published here, and a call missing one can come back as an argument error, which is settled as your call. Read the callable shape of every tool on this seller's server free at GET https://fiatdock.com/v1/marketplace/services/svc_64d3be32-5ced-4d2d-89fb-02132b0088dd?include=schemas",
                      "type": "object"
                    }
                  },
                  "required": []
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "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/v1786649692/bazaar-icons/a8ca40512a3f380b.png",
    "lastUpdated": "2026-10-18T20:59:07.271Z",
    "quality": {
      "l30DaysTotalCalls": 11,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-18T20:59:06.835Z"
    },
    "resource": "https://fiatdock.com/s/svc_64d3be32-5ced-4d2d-89fb-02132b0088dd",
    "serviceName": "FiatDock Marketplace",
    "tags": [
      "mcp",
      "marketplace",
      "x402",
      "finance"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Pay-per-call: true402 Quant Calculators — Black-Scholes, implied volatility, Kelly, Sharpe, VaR"
}

What the leaf hashes

{"body":"5c916f4654fad442dc7147a73220f551def4987adb764706214c6b75556de403","id":75145,"kind":"listing","method":"baseline/1","observed_us":1793025490109580,"prev":null,"subject":"x402_bazaar:https://fiatdock.com/s/svc_64d3be32-5ced-4d2d-89fb-02132b0088dd","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).

0x845d759fd0584d5b1e5606f5c49c8f891750f0e2eedb727ad274571d36e0b8b4
0x8a1f5678e3f8fd71de98e218da1129bd6102aafefc2289cf659ca27c5e9c5863
0x7ab2ac1d8d7969c17fcd46af1a42f96136c535532e16ead7faa8ffbdbeb4cefe
0xcf8c7b55efc8a3880933d0042dfb4f9b1675e53d5ab22709653da78286dc1742
0x83dea389ff51f9242ac3b5ebf3537e4b12ea21c5598fcb4ed705c55ec8acade9
0x78793c71a51f75f20d3742e808065b732cfc6b8c3396c4b9958f7dd7d258d08d
0x53123ed4cb16d14ca104db40087ce8182e1d463a89ce9c41f7ba02b93d6dab15
0x43ba185d249f28d5f289de5894b52dbf3b26ad0edd3f6fada3245852bbcc149b
0x5c215705491e103750b4794a10ee9db63a87bd2fc6ec11ee9d06fd9d51a423de
0xbd61f8ccc42a3dedbb87058ee9b8aa973f0189e5171c2843edd9ca490c36ad87
0xdb4295ae338449b07243daebee8c36f16b3aaca1599a8f860eb80e22bca21e79
0xfdaa032291ded0df2cf35d6e9dc6e7a2643d0fe027dd3ab321971f1f7bf69147
0x91c2ae93ec20c7fed5088112fe3941ca622dfb3f8f1022c4844726c361244bd4
0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON