Evidence row 41543

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api.mcp.ai/p_bcb_cotacoes"
    ]
  ],
  "name": "Banco Central do Brasil (BCB): Cotações",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-08-20T05:49:51.982416Z",
        "status": "active",
        "statusChangedAt": "2026-08-20T05:49:51.982416Z",
        "updatedAt": "2026-08-20T05:49:51.982416Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Banco Central do Brasil (BCB): Cotações, official-source lookup. Platform-hosted, pay per query with",
      "name": "io.github.mcp-dir/bcb_cotacoes-mcp",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api.mcp.ai/p_bcb_cotacoes"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/mcp-dir/bcb_cotacoes-mcp"
      },
      "title": "Banco Central do Brasil (BCB): Cotações",
      "version": "0.1.0"
    }
  },
  "source": "mcp_registry",
  "summary": "Banco Central do Brasil (BCB): Cotações, official-source lookup. Platform-hosted, pay per query with"
}

What the leaf hashes

{"body":"cff52fe4e08bcf0e5e3d5228060d81837b6a6877c349fdcd9106056450a6a8f5","id":41543,"kind":"listing","method":"baseline/1","observed_us":1793025399785330,"prev":null,"subject":"mcp_registry:io.github.mcp-dir/bcb_cotacoes-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. 0x98f7c470b8d7616f8b65c18b1cdb781c0d19bc7454a42e8bb89bd29388d06b72
2. 0x1d0b95d652f7b138886827121467af3c19173176ae22d57a6253b4ad2cd2f91b
3. 0x1a62dcc5a8018cb76c675e1425f6135334c7b61ea3a5aa30da7d2d2ecee21d9a
4. 0x93d10236ef887b504b03b4d4e881f8a4c1eebd1a7dd9ae16ec62f463b9399b44
5. 0xd130bb40d4f420dd9e1a1702936b082c3671d09781c263e8df9c30111665b77f
6. 0x1eb46e33e9666d0cc2f03f32a4062e4b99dafd343503d4e446eec10c11f0e770
7. 0x0eecb2632080663613f0ecf86130feb006b63349b6937d2934cb847b327ef0bd
8. 0x204f059b2eb71a40e1ec64a68d80af61581178473ac9b5193d60ea658a37ae47
9. 0x5ebed75ca678129fe62392901b6d67c57f4dace48f5a0ab017ff64af5a40a159
10. 0x2b4f513a842f0518600372c41655e79b425e107967347efd041a1f46774282f2
11. 0xd3f19437d703373e99e0bf69c4ca06561426260f599f7d259e3257085a387573
12. 0x6ae9e6ee1b544d831982666bd3570457659e78fc0064894d7ec23f971a37ff2f
13. 0x239fd39716710e7412bd120c373072b4c0d8b11bb9ee431dad62a2ce57b3d6f4
14. 0x49062da782c4f73855ddd5fdd51840749f928b5f17d1ce75ac50f2d829104e72
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae