Evidence row 44356

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/mwieczorkiewicz/opcua-mcp"
    ]
  ],
  "name": "OPC-UA MCP Server",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-08-05T11:20:21.125128Z",
        "status": "active",
        "statusChangedAt": "2026-08-05T11:20:21.125128Z",
        "updatedAt": "2026-08-05T11:20:21.125128Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read, write, browse, search, and subscribe to live data on an OPC-UA industrial automation server.",
      "name": "io.github.mwieczorkiewicz/opcua-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "opc.tcp://localhost:4840",
              "description": "OPC-UA server endpoint to connect to, e.g. opc.tcp://your-plc-host:4840",
              "isRequired": true,
              "name": "OPCUA_ENDPOINT"
            },
            {
              "default": "anonymous",
              "description": "Authentication mode against the OPC-UA server",
              "name": "OPCUA_AUTH_MODE"
            },
            {
              "description": "Username, required if OPCUA_AUTH_MODE=username",
              "name": "OPCUA_USERNAME"
            },
            {
              "description": "Password, required if OPCUA_AUTH_MODE=username",
              "isSecret": true,
              "name": "OPCUA_PASSWORD"
            },
            {
              "default": "None",
              "description": "OPC-UA transport security policy, e.g. Basic256Sha256",
              "name": "OPCUA_SECURITY_POLICY"
            },
            {
              "default": "None",
              "description": "OPC-UA transport security mode, e.g. SignAndEncrypt",
              "name": "OPCUA_SECURITY_MODE"
            },
            {
              "default": "stdio",
              "description": "MCP transport: stdio (for local MCP clients) or http (for remote/hosted deployments)",
              "name": "SERVER_TRANSPORT"
            }
          ],
          "identifier": "ghcr.io/mwieczorkiewicz/opcua-mcp:main-29734c4",
          "registryType": "oci",
          "transport": {
            "type": "stdio"
          }
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/mwieczorkiewicz/opcua-mcp"
      },
      "title": "OPC-UA MCP Server",
      "version": "1.0.0",
      "websiteUrl": "https://github.com/mwieczorkiewicz/opcua-mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Read, write, browse, search, and subscribe to live data on an OPC-UA industrial automation server."
}

What the leaf hashes

{"body":"568eef8c2146ff549488bd831e7a5ecbbfbbf7a42e0f4ff81c03538873ac24b1","id":44356,"kind":"listing","method":"baseline/1","observed_us":1793025403895681,"prev":null,"subject":"mcp_registry:io.github.mwieczorkiewicz/opcua-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. 0x2fa758a660256ce1d3261832aeac1a3c35ef6932cc989a37a95e720f30b502da
2. 0xddf19d20bbcad4220034be5c48d72e54e4d15b8138787240bbb33f55acd77b61
3. 0x91f0344a6b3a8868a89b779bd040f2590aa729ed930deca1aac93cde8762a39d
4. 0xb6f1d51c8b72de23dbb94f8d717d2231f5ad87b701fc48f8738a5dc29db8decd
5. 0xf6958244013a0befcbbd27a39a6c8693e959217ab8831269ca9e38f69d240cc0
6. 0x399d3da5fa4e1941ea1c5f7660536436271470176c3726612770d4239578dcff
7. 0x703f6e613df1ebc7528de7e9c6b900217589bd2f823d7f45128bd8a681757acc
8. 0x30895bff76427968d69989caac140ae0314d4ae878388333e4bd410821700c76
9. 0x2598a23a8566e2c4fdbbfdff5dfe632d71ad9f6f6a89e1c4674bdda697c95a0c
10. 0x6b688efccc67667934f53af0dda473be5dd9a09af5b20b03ee9e17b11c036418
11. 0x5706295a72541360bda32c42f2b8bcd1e27be58a3989ae29fd4aeb7edddae0ae
12. 0x12cda00da304cf48d9b3c1874c07a6f0a2e143ba0d25e359b8fd805abb057b32
13. 0x36a44931b230976c04691d90bf3a25ed4111d74c78b672850d8025a911ca88dd
14. 0x683955a5b2250ad50568d022a6580d8739b6aff1356779d72a773b088e7c289c
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae