Evidence row 52457

What was observed

{
  "endpoints": [
    [
      "web",
      "https://softbot-studio.pages.dev/"
    ]
  ],
  "name": "Softbot Studio agent tools",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-16T13:13:04.742922Z",
        "status": "active",
        "statusChangedAt": "2026-10-16T13:13:04.742922Z",
        "updatedAt": "2026-10-16T13:13:04.742922Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-09-29/server.schema.json",
      "description": "Pay-per-call x402 agent tools (USDC): web reader, token/wallet/email/site checks, screenshots, PDFs.",
      "name": "io.github.softbot-studio/softbot-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Solana keypair (base58 or JSON byte array) of a wallet holding USDC; pays each call",
              "format": "string",
              "isSecret": true,
              "name": "SOLANA_PRIVATE_KEY"
            },
            {
              "description": "Per-session spend cap in USDC (default 0.25)",
              "format": "number",
              "name": "MAX_SPEND_USDC"
            },
            {
              "description": "Set to 1 to only show prices, never pay",
              "format": "boolean",
              "name": "SOFTBOT_DRY_RUN"
            }
          ],
          "identifier": "softbot-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "mcp",
        "url": "https://github.com/softbot-studio/softbot-agents"
      },
      "title": "Softbot Studio agent tools",
      "version": "0.2.0",
      "websiteUrl": "https://softbot-studio.pages.dev/"
    }
  },
  "source": "mcp_registry",
  "summary": "Pay-per-call x402 agent tools (USDC): web reader, token/wallet/email/site checks, screenshots, PDFs."
}

What the leaf hashes

{"body":"d5e138dfe97ed27f08fb0c11156d20ed80c146118e98add063dbdd0b27758501","id":52457,"kind":"listing","method":"baseline/1","observed_us":1793025419911377,"prev":null,"subject":"mcp_registry:io.github.softbot-studio/softbot-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. 0x6122368ef8d4b52a377984fd5735ed7df6c60a22f5a7dbc4fd7e2e8a217da02c
2. 0x3e1514d644d461f4cbec65d47f14e67df9a71bb2b9573ce31adf90b58f5d2476
3. 0x8886b2e688b25dbe55c0b75f59251019bca9189254794bab06c80786fd31e960
4. 0xd1ad7fd729814465776a19d1ed3abe8ab754311ccbc19f49f1f97e8359fded0a
5. 0xde68acf1ed058f4c839730505c3c466bc0fc6e063cbc43b8e07a9818714308d5
6. 0xde66a6735220052730cb31efbd05f61bca77c85cb8ac727b441807e5c6cad096
7. 0xe0b3bc331ff37056629807ca092c9291c2b5837c99099cd9faa7b94fb1d438db
8. 0x31f08a647f7d39300c0cef045119792ebb48ad226b73747d85265aa61a635e7b
9. 0x1b6b041c4f63a13850a0ef9b8a0cc3d69f81b0bff6c0fee5059731c160e5c529
10. 0xe260b2e40b95bbf4bea407155c3f0fd2821a2b48a48010e119c9c3a25f20adb5
11. 0x52877ea072e10a1d3a921f7b54362005ad7a9baf5c99f31ec73a534bfea8930d
12. 0xf4e3bedc99674db9d8ab4bc7655992ec76f822b327e6c89599b0baa3756fbd19
13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae