Evidence row 13011

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://assay-systems.com/mcp"
    ],
    [
      "web",
      "https://assay-systems.com/"
    ]
  ],
  "name": "Assay Systems procurement register",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-18T10:44:43.917837Z",
        "status": "active",
        "statusChangedAt": "2026-10-18T10:44:43.917837Z",
        "updatedAt": "2026-10-18T10:44:43.917837Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Public procurement register, 50+ 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": "1.0.0",
      "websiteUrl": "https://assay-systems.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Public procurement register, 50+ countries: suppliers, buyers, contracts, single-bid awards"
}

What the leaf hashes

{"body":"07a2a16d851a39f1469fd761b5c8cf11e7cd54789f467a41e22d873fc8712b4c","id":13011,"kind":"listing","method":"baseline/1","observed_us":1793025306812611,"prev":null,"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 2026-10-26 (296695 rows).

1. 0x4077b10f95e75c400cf1b912a278ae1d4b0debdf45a6d2a1eba5e5616bd57651
2. 0x91b0f553ef69ce8faeb0950e1073cf64c9c1414c0e8a14cd016da5aa90a0947e
3. 0xdfa99a61cec05d910a4b2bbe949a0280577da6970236ba2d0242082eb5d5d13d
4. 0x705d89c6e757c050dafd226c58a2d0f6209bf0e213b61ba9ab8b3ec9fcf4aa44
5. 0x3fdfba54faab6bafbd4d04656586afe39e3a76638b58879ae23e5d71abf0af75
6. 0x1ddb97174af5fd5741954821c41f1abb105ff71133d9760e6fa1837936a9cf85
7. 0x4bd360ee8428eefab8371028a90f15e14aeba370761691b9b087c296ea8ec420
8. 0x6c0933e2d6c5db9c48d456cc4e7dcc724b81f2a22dddc90fdb280c409c867fec
9. 0x4546316647c2da2f40bbf65e58c217cf4da807fa8db1a8102842d3d68f88a336
10. 0xa22eb09d48f0af576480334a704954e6e8556d9981bdf6546be78cf11ad8843d
11. 0x6ec69a305a23b604ab679d75c3502d235953d73d9c2a74b16fb74b49af695fa0
12. 0xe2bb2a30c74e0bf16b8b75c332bdd45334d0338bef3f3022b7ea7b55718e1369
13. 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae