Evidence row 36519

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.mercury402.com/mcp"
    ],
    [
      "web",
      "https://mercury402.com/"
    ]
  ],
  "name": "Mercury402: Treasury/FRED financial data over x402",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T03:10:27.208559Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T03:10:27.208559Z",
        "updatedAt": "2026-10-26T03:10:27.208559Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Treasury/FRED financial data over x402: pay-per-call US yields, macro and forex in USDC on Base",
      "name": "io.github.dudman1/mercury402-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Opt-in paid mode: private key of a dedicated low-balance wallet holding USDC on Base. Leave unset for free discovery mode.",
              "isSecret": true,
              "name": "MERCURY402_PAYER_PRIVATE_KEY"
            },
            {
              "default": "0.5",
              "description": "Per-call spending cap in USD for paid mode.",
              "format": "number",
              "name": "MERCURY402_MAX_PRICE_USD"
            }
          ],
          "identifier": "mercury402-mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.4"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.mercury402.com/mcp"
        }
      ],
      "repository": {
        "id": "1172993361",
        "source": "github",
        "subfolder": "mcp-server",
        "url": "https://github.com/dudman1/mercury402"
      },
      "title": "Mercury402: Treasury/FRED financial data over x402",
      "version": "0.1.4",
      "websiteUrl": "https://mercury402.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Treasury/FRED financial data over x402: pay-per-call US yields, macro and forex in USDC on Base"
}

What the leaf hashes

{"body":"d39a8c8ab9583888c9800f4919eaae8cdf7a262e9bf0ebee9327025b72edec16","id":36519,"kind":"listing","method":"baseline/1","observed_us":1793025380809969,"prev":null,"subject":"mcp_registry:io.github.dudman1/mercury402-mcp","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. 0x2ab59a53428f06149460dd6bb20fc5bf5a748875f132251bb14103364eb19ad1
2. 0x162f5bc8f8f16c0b9218f629bb963a6cde389323f0a51b48f690ebb93058b144
3. 0xa897f6f8f431354d6ada3a400d44bb7743c072aa8fa0c3a37da2fcbeb72c40c0
4. 0x1de402c9a1e4ce9ec94b3b8670e89992bceebe9aeb86dbf2c25dd0f7757adf23
5. 0xfb64cc28e30b58f42e4da23b8c59928ab180c54f39f5c7046d5acb7e8be473da
6. 0x3dd7f801626c102cb059fcb4d2817b70c762d860c6d187d67804dd7864b844fe
7. 0xec7cfd5561cf050947d2064c7624c98cefcc6986ea81bbad3a75cf4becd33da9
8. 0x3ff0dc11646609186d6957d81c6210ae44727e25dd39cc945e4e372966b5f2aa
9. 0xe341697a43ca95743b9cc942785640ad8533ed91caea74fee2280c3fd45bddbd
10. 0xaa8650f76913e91404db3fdf03026f9761609152eb2e32f71c4d93058b86b406
11. 0xde76827525517f5c8aef4ffd7831eab09ee63757dcc2282bc64307fd6ee67ad1
12. 0xe8bf822fd6c66b233e3e13e08596e8fb41c1ed9b85be0e4d50cfc9b740c0e206
13. 0xb87e8b32cda179c9e632e227bbd8a6d1f6f61d9d81bb92dbd4dd835d2b3b5caa
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae