Evidence row 18851

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://paperswithbacktest.com/api/mcp"
    ],
    [
      "web",
      "https://paperswithbacktest.com/ai-researcher"
    ]
  ],
  "name": "Papers With Backtest",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-08-27T13:10:09.553409Z",
        "status": "active",
        "statusChangedAt": "2026-08-27T13:10:09.553409Z",
        "updatedAt": "2026-08-27T13:10:09.553409Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Search 5,000+ trading papers with verified backtests, strategies, datasets, and courses.",
      "name": "com.paperswithbacktest/papers-with-backtest",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://paperswithbacktest.com/api/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/paperswithbacktest/website"
      },
      "title": "Papers With Backtest",
      "version": "1.1.0",
      "websiteUrl": "https://paperswithbacktest.com/ai-researcher"
    }
  },
  "source": "mcp_registry",
  "summary": "Search 5,000+ trading papers with verified backtests, strategies, datasets, and courses."
}

What the leaf hashes

{"body":"7753af1ef312f274ffefbb0d8d35934eb19adddee99b803da707363f2aaabdda","id":18851,"kind":"listing","method":"baseline/1","observed_us":1793025330920325,"prev":null,"subject":"mcp_registry:com.paperswithbacktest/papers-with-backtest","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. 0x29ba1bf7ea3bada780bf3110e907049ede6a48d01e299bb557b8b3977534d1b8
2. 0x037d2e8c38642dadcf2f7ddc167bdb99a6407c189555f40e4219b35a6f85c081
3. 0xc1916d31bd26d7307766d30fa66ecf1ab7d76d74a433abd8b4f66f247af5522a
4. 0xd2479011f31b1d35417a81880c1c2200f3993a515dac1f48cecd2a3af58624b7
5. 0xafac7de3a882c6aba294ec7bbd36342c2c7bde2fcfc5bf5255358059a6791a06
6. 0x8922beeeb90ded64f6d8f6d68945537c7a72c4ce0b8cd01eb93bf0fc6ab4e91d
7. 0x60cb6ceb0cdb2d232c59ab296e944d2dd9ee46d976d6fd90946adac8be335b63
8. 0x964165154011f95b81d35f8cebbb20f3dae190b6279a9cc67ecf080fa232e663
9. 0x12fa01fa6c7f3095ad3b2e628b219218cfeb5bf07fb28815e6fc90c316c2ddd2
10. 0x079e56fd7ce09a98c00f4680a76c581bded42a26156180f38eee79f5a6f72d59
11. 0x525ed12bc40d74342377fb46a14f281838d153c85147520116f4d7fa219aff5e
12. 0xeab0020f03650c1a79ed79927ae9d808c59a41295a86d1285582516590c954e6
13. 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
14. 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae