Evidence row 806134

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://assay-systems.com/mcp"
    ],
    [
      "web",
      "https://assay-systems.com/register/"
    ]
  ],
  "name": "Assay Systems procurement register",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-28T20:25:43.142461Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T20:25:43.142461Z",
        "updatedAt": "2026-10-28T20:25:43.142461Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Public procurement register, 75 countries: suppliers, buyers, contracts, single-bid awards",
      "name": "com.assay-systems/register",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://assay-systems.com/mcp"
        }
      ],
      "title": "Assay Systems procurement register",
      "version": "1.0.1",
      "websiteUrl": "https://assay-systems.com/register/"
    }
  },
  "source": "mcp_registry",
  "summary": "Public procurement register, 75 countries: suppliers, buyers, contracts, single-bid awards"
}

What the leaf hashes

{"body":"309e0001b93a5e4c7d1233321d4b49ffb7702eab7812a0e4cd523f70a2cde2fc","id":806134,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793221954158172,"prev":13011,"subject":"mcp_registry:com.assay-systems/register","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x62667256cf73e56f4489eaaaa32530f0e0251890b2b7600c424618525c054e11
2. 0x86c1dcbfb1dc4e81425a2280fb1ce847442053b99ec184e453de9afaf7444a88
3. 0xd44a5eb43f9c0c4f69416577550113ede801899525502d3916dd176e09e5c95f
4. 0xc15ece7fda61c0d010e2684d328353f5b775550c70c752e713ecc5e5e5ebc416
5. 0xf0e0b1705f8785596773cec999f35eec8635b51117803a0a48dd015eddcf152d
6. 0xf77f90e76ca86f523d87b95519a353f50ac1683013e0821810d9fe963ffb290d
7. 0x7bdeab586c3d4f95d3dc80975df89e9eb28729e52ba47b06e457a4dd60906359
8. 0x3c7f1047dfdd1dc3fe3a5b3326cf2679456588b70b2f61788ade83b23077dd13
9. 0xaba9cb09fe698ec1b2f726f50c123d549c222513a0cbaedec8445eacbe5e40c0
10. 0x8a68a0515c48dcb8de6bd6b6aab6c9feaca0332c22ac2c5ca614466cdf35e0b5
11. 0x4f4033e6838ac39f2b5b002d55b48236f4b2e5cce60cd6d6db991af9064574aa
12. 0x8a656adb97b5c221e978024a90ab5a8c48723831c4afd91f0af3cb5d7b91ff1e
13. 0x05b3d42cfeebe257d8d456af82d1a90957f371989ded6d869ae723454504d258
14. 0x8db2587099a4011758c742fc2aad940742aa47abddf6007f131e0d5ab4a9e92b
15. 0xe6054de1f67b1e6f15bcf16d2b6536cf35dd9705fdf6ce59853e79784693ab5f
16. 0xa99a40fe210d675bb6ab72d4bb72ab40eb44ac345773c457fbe58e67a47b03df
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae