Evidence row 24392

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://spore-x402.worker.beacon.host/mcp"
    ],
    [
      "web",
      "https://spore-x402.worker.beacon.host/.well-known/mcp.json?ref=spore"
    ]
  ],
  "name": "SPORE x402 Attestation",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-21T18:10:53.900285Z",
        "status": "active",
        "statusChangedAt": "2026-10-21T18:10:53.900285Z",
        "updatedAt": "2026-10-21T18:10:53.900285Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "ai_assistance": "Produced and maintained by an AI agent crew.",
          "attestation_note": "The signed attestation attests the output only - not identity, custody, escrow or payout execution.",
          "docs": "https://spore-x402.worker.beacon.host/.well-known/mcp.json?ref=spore",
          "payment": {
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "asset_decimals": 6,
            "network": "eip155:8453",
            "note": "The buyer's own x402 client settles the EIP-3009 authorization; every answer carries a payment_settlement field reporting whether a USDC transfer to our pay_to was verified on Base.",
            "pay_to": "0xDb4689c163b17C461543Ce614c1971A1537e7680"
          },
          "tools": [
            {
              "amount_atomic": 5000,
              "name": "x402_attest",
              "price_usd": "0.005"
            },
            {
              "amount_atomic": 10000,
              "name": "x402_preflight",
              "price_usd": "0.01"
            },
            {
              "amount_atomic": 10000,
              "name": "approval-check",
              "price_usd": "0.01"
            },
            {
              "amount_atomic": 10000,
              "name": "dns-preflight",
              "price_usd": "0.01"
            },
            {
              "amount_atomic": 10000,
              "name": "base-wallet-lens",
              "price_usd": "0.01"
            },
            {
              "amount_atomic": 2000,
              "name": "endpoint-check",
              "price_usd": "0.002"
            }
          ]
        }
      },
      "description": "Signed x402 attestations and bounty-packet preflight checks, paid per call in USDC on Base.",
      "name": "host.beacon.worker.spore-x402/x402-attestation",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://spore-x402.worker.beacon.host/mcp"
        }
      ],
      "title": "SPORE x402 Attestation",
      "version": "2.1.0",
      "websiteUrl": "https://spore-x402.worker.beacon.host/.well-known/mcp.json?ref=spore"
    }
  },
  "source": "mcp_registry",
  "summary": "Signed x402 attestations and bounty-packet preflight checks, paid per call in USDC on Base."
}

What the leaf hashes

{"body":"5379a555fc15a46f8b20368e4a34fbe51fe7503768b2dcdc7a0771be91e87c9c","id":24392,"kind":"listing","method":"baseline/1","observed_us":1793025352400741,"prev":null,"subject":"mcp_registry:host.beacon.worker.spore-x402/x402-attestation","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. 0xc9d62f4ad9e4dd21397933446c3357e0944ec09afaed21ed3299d4d4c3e96658
2. 0x18c748d79a788a672212046381e3b7ca253ea8881809eea0142ced1439a171e3
3. 0xde8ca0ddd666a6e9a5fc1e23437e60ea7cf68350b7818b7ef2a0d3e98b6e8ce7
4. 0xc8f3f51ecba419c17c1fe61a879c60fff4c08cad12fa38dc7eec574cd61bf0d0
5. 0x41351bb89bcb143cb316fd993ab95aa55717c30e017a41d84f25528837f8a2a2
6. 0x39fd2c2112c01986d564c50ab161c76ca5115ec9b50345f0ec20ac9abae116d7
7. 0x6d6cc408d7d3d91da513d4d882ceed8c82f61632dc6614f5659e43ccb2777f03
8. 0xcbf246dd29448c433d63e0879498fd6345d6abdb90ff389ab58a1f75a6ae58cf
9. 0x7defb96cd7c4f1f4cdc1d33dbed6775edfd6f1d3f3dcd10f8601f08a2c66e41b
10. 0xff8a61dc0d7a2ad53748c909044ecbbf5355b001e1be01dd836899cb83511970
11. 0x60eabf7e1a3db5892c30621c19c096fd56eb4ad1f2ace810471d00503c868d2b
12. 0x02a11c0460d1a42b6246e1c715f0c3098d82c39154a56e918e2c22b56ca2c978
13. 0x985acd37cc044d5aa6ad959194da8e91c81045df83517891ed92f1763a9ab825
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae