Evidence row 1286590

What was observed

{
  "endpoints": [
    [
      "web",
      "https://www.ngtchain.com/"
    ]
  ],
  "name": "NextGen Token",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-30T19:11:09.036516Z",
        "status": "active",
        "statusChangedAt": "2026-10-30T19:11:09.036516Z",
        "updatedAt": "2026-10-30T19:11:09.036516Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Pay per call in NGT on Base: call any NGT x402 paywalled API with a capped budget. Signed locally.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "32x32"
          ],
          "src": "https://www.ngtchain.com/ngt-icon.svg"
        }
      ],
      "name": "io.github.Har50/ngtchain",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Wallet key that signs NGT payments. Use a dedicated wallet.",
              "format": "string",
              "isRequired": true,
              "isSecret": true,
              "name": "NGT_AGENT_PRIVATE_KEY"
            },
            {
              "description": "Most one call may pay, in NGT. Default 0.01.",
              "format": "string",
              "name": "NGT_MAX_PRICE"
            },
            {
              "description": "Most pay_and_fetch may spend per server session, in NGT. Default 0.1.",
              "format": "string",
              "name": "NGT_SESSION_BUDGET"
            }
          ],
          "identifier": "@ngtchain/mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.1.0"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/ngtchain-mcp",
        "url": "https://github.com/Har50/New-network"
      },
      "title": "NextGen Token",
      "version": "1.1.0",
      "websiteUrl": "https://www.ngtchain.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Pay per call in NGT on Base: call any NGT x402 paywalled API with a capped budget. Signed locally."
}

What the leaf hashes

{"body":"b8fe41ae87611b3d37d03299cd519f75b86b32ba92d45e887f31bd30606ed029","id":1286590,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793387736929920,"prev":1051669,"subject":"mcp_registry:io.github.Har50/ngtchain","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x989742203654ebe511dd2938177f862f4a0b1f3106b59926d2e01d794962453b
2. 0x867485dc7d3475f846512a69d5c4e4ac97166cb89261beab30ee3eff62f0ed4f
3. 0x758047d2fecc9941c23cf9fb5134e310cc790c3646ba0251f743405509c4957a
4. 0x705c025e9c2889377daf41a6a9bea0d9272c21f8f83d660318c7ac9973f20020
5. 0xce6d114b9beaec2659588681e664e3d5d10fbc5a15bcd86c5197e6212d0bbbe5
6. 0x7eae6490dfbf0f279318dc6f8bef4031cf5cf18702e1207ce796db9e09d2d7e9
7. 0x46ff6ab0f11cfb68cb373534324949c24b3475dc44d53acc1fe015b564a5d166
8. 0x3800db10a181b544822db872bff60b66092c4bdfac6501c2fc13782912009d6f
9. 0x18c3f3da38762d0bdc8304f9d2567344d1b12386022018d96301e3c28c060b98
10. 0xa96d10829e94daf939ea837937741ca9f977064d3ed6f4bb6ca7889f1c4c20aa
11. 0x4fde4e7ec3951f834a6e817bf891efca9918202af8f706f220dbe74d5c4fba34
12. 0x339d16b68fbe5deb92649d3e4cc2acad2a3981d6eb1109da459adcf692cb4a7d
13. 0x372bfcb87c70d97986e37af71499d7b740f99f47cd88d8135364b140161cc6d3
14. 0x7db51cf84d41f2e07ef904fc1b6aeb666b2a2762de18ed12ac42d5938eb28dc2
15. 0xe722b5213af778d8f1621b8b0b61f957ac8d8bb43a780aed8989bfc357e5bc58
16. 0x835211170e79bdce1a823ec914e3532e128f77751e9074286da35091b0200284
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861