Evidence row 20802

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://x402.synthexforge.com/mcp"
    ],
    [
      "web",
      "https://synthexforge.com/"
    ]
  ],
  "name": "Synthex Forge — x402 Paid Agent Services",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-21T23:27:13.307043Z",
        "status": "active",
        "statusChangedAt": "2026-10-21T23:27:13.307043Z",
        "updatedAt": "2026-10-21T23:27:13.307043Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "synthexforge.com/attestation": {
            "description": "Ed25519 over SHA-256 of the canonical body.",
            "hash": "SHA-256",
            "signatureAlgorithm": "Ed25519",
            "verificationIsFree": true,
            "verifyRoute": "POST /v1/settlement/verify"
          },
          "synthexforge.com/attribution": {
            "asset": "USDC",
            "assetContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "decimals": 6,
            "description": "x402 v2, USDC on Base, exact scheme, EIP-3009.",
            "network": "eip155:8453",
            "networkName": "Base mainnet",
            "payTo": "0xc8fF67FAE72596478599EAAcfad8656fAe1113c8",
            "paymentHeader": "X-PAYMENT",
            "paymentProtocol": "x402",
            "paymentVersion": 2,
            "priceHeader": "Payment-Required",
            "scheme": "exact",
            "transferMethod": "EIP-3009 transferWithAuthorization"
          },
          "synthexforge.com/discovery": {
            "a2aAgentCard": "https://x402.synthexforge.com/.well-known/agent.json",
            "agentsJson": "https://x402.synthexforge.com/agents.json",
            "description": "Machine-readable discovery surfaces.",
            "docs": "https://x402.synthexforge.com/docs",
            "llmsTxt": "https://x402.synthexforge.com/llms.txt",
            "mcpManifest": "https://x402.synthexforge.com/.well-known/mcp.json",
            "openapi": "https://x402.synthexforge.com/openapi.json"
          }
        }
      },
      "description": "Paid agent services settled in USDC on Base via x402. Signed, verifiable, and free to verify.",
      "name": "com.synthexforge.x402/paid-agent-services",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://x402.synthexforge.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/hermeschoosenone-debug/synthex-x402"
      },
      "title": "Synthex Forge — x402 Paid Agent Services",
      "version": "1.0.0",
      "websiteUrl": "https://synthexforge.com"
    }
  },
  "source": "mcp_registry",
  "summary": "Paid agent services settled in USDC on Base via x402. Signed, verifiable, and free to verify."
}

What the leaf hashes

{"body":"f3d7b98400f2b165b556602e4d9395cfb6bea2ba884c09e4fe988cf70af7286f","id":20802,"kind":"listing","method":"baseline/1","observed_us":1793025337209436,"prev":null,"subject":"mcp_registry:com.synthexforge.x402/paid-agent-services","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. 0xec968fdcab22d11662cfbce808c62eb0bd33e6e946d870c65ab42fd65954b8d3
2. 0xe65551fcf93848ac259c63da8b9f4935a9b7c2dc9f7970e656fb7f9fc8fb3d63
3. 0x8193fd95e5b17448ffe68c047ae091dc6ff46f806bfde96e6b2fc0d95241c278
4. 0x355d0f78fd42b5914e1b430ec84ee695fff886d42bab13442e6ef8a68f600cd6
5. 0x4134b442eb013999d74c5c34ce42b918061041e93080c8b52552f96d825d6d21
6. 0xcbc1cd536fc16c1f7f6dd05c943a44d5229525b11a3a0837a8cfa97e74b4f845
7. 0x6e2017668af0b30a261c6ac5916406379f3f5c206a89f80483bf52b3ec230173
8. 0x1a638f8fdca07d242d4db5d1b49d24c541f4368323f2250301a9c883854aba4e
9. 0xa42a2a14d6064a60a844b8d5a324466c750c253b0e66b5d751b4b101ad91e766
10. 0xbd0fe1f0b167ff665b9719ad8dc002f05cde40b88825cbbc513241eb8e47063c
11. 0x94e3a06f6e015a8e8a8a7e2c73991edf3f9ceb9ff83b85412d31c39f3e9bc8c1
12. 0x4bac6365a3676c613d57c80f4d4f617e583205074db24f3dec4d2ed4939a26e6
13. 0xec98ca25cb12ffed7c3e1373971719ce414ee6deecd1e7724b2979e2c356d99f
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae