Evidence row 1493070

What was observed

{
  "endpoints": [
    [
      "web",
      "https://port-402-production.up.railway.app/"
    ]
  ],
  "name": "Port 402 Memory",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T15:00:48.540719Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T15:00:48.540719Z",
        "updatedAt": "2026-10-31T15:00:48.540719Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Persistent memory for AI agents, paid per call in USDC on Base (x402). No account, no API key.",
      "name": "io.github.Tifdt/port402-memory",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Private key of a dedicated Base wallet holding a few USDC. It pays each call and is your private memory namespace.",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "PORT402_PRIVATE_KEY"
            },
            {
              "description": "Spending cap per call in USD (default 0.01).",
              "format": "string",
              "name": "PORT402_MAX_USD_PER_CALL"
            }
          ],
          "fileSha256": "9771f90cc1fc50b1e8fdd3c66794dc04694daa0fc92796a32359629a4dd219cd",
          "identifier": "https://github.com/Tifdt/port402-memory-mcp/releases/download/v1.0.0/port402-memory.mcpb",
          "registryType": "mcpb",
          "transport": {
            "type": "stdio"
          }
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/Tifdt/port402-memory-mcp"
      },
      "title": "Port 402 Memory",
      "version": "1.0.0",
      "websiteUrl": "https://port-402-production.up.railway.app"
    }
  },
  "source": "mcp_registry",
  "summary": "Persistent memory for AI agents, paid per call in USDC on Base (x402). No account, no API key."
}

What the leaf hashes

{"body":"07319f9196fd66f992f583e0c2a68093e83deaa523d7020dca757bc04a046ffe","id":1493070,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793459770598184,"prev":null,"subject":"mcp_registry:io.github.Tifdt/port402-memory","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x0379e9d028ef229d5ac81785ae38f6dcd6345775a5bbae440ed60ecd26bb95b9
2. 0xcbf8bf51f7c09311699bed9c5129e539dde302032ca3d10038c827c5260c0758
3. 0x2499ade88c16fb6b75b9932bbad36a1e4197cd08d719960cba44dc3ec850c95c
4. 0x69e635cc1c886018b5ef031db719e2344e3b19e9cdc2e6087f4e5b467d279be1
5. 0x18e6a2c274f73435a48e04daddf3cba116d1a751c4816b7ba1c32826fc931509
6. 0xbf7c8c368d70ce4cab677a7e91a7d919c530ae90e28a0ec82d1635ab12859ce7
7. 0x9ed47c348f7820947d924d6df78160217557898b56a167c5d14e6058be650f95
8. 0x8b68144ccd4c80967379b3939ab62e78feb263da3e828a23958c03af4e807981
9. 0x3a72beab54e448ff86f3966a961265d6e85f8947670f16a2608e707e0602c11f
10. 0x4895d8eace722e349c8f395b37f8bf4a1a488fbf308801bb52e55078cbd381db
11. 0x83bcb904d5ff4417c029b8f92d62c71ebff2394dedda23b3ef8e91e27b10bcd4
12. 0xe27118b785e2cfb1a81ccc7f334fce26d06706f7c2a0f0cd8fea60c705e91f8c
13. 0x45c8b1ce47a99e2633004e1ed398e4d37985580bf60db77126dc766191cc9f03
14. 0x3c6faa3733ce39f85107d6cf00f3a7c42fd5fd374502ec6e62b0305586bf03de
15. 0x72fbe549c493739bb99e38209648de550f136f904e61b4f7609a937c2630a055
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0