Evidence row 1821126

What was observed

{
  "endpoints": [
    [
      "web",
      "https://paystage.xyz/"
    ]
  ],
  "name": "PayStage",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T19:54:42.773304Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T19:54:42.773304Z",
        "updatedAt": "2026-11-01T19:54:42.773304Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Umbrella MCP: payment preflight, auth watch, HIP-3 trade preflight, velocity checks",
      "name": "xyz.paystage/mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Path to policy.json spending rules",
              "name": "PAYSTAGE_POLICY_PATH"
            },
            {
              "description": "Base RPC URL override",
              "name": "PAYSTAGE_RPC_URL"
            }
          ],
          "identifier": "@paystage/mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.2"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/mcp",
        "url": "https://github.com/base-buzz/paystage"
      },
      "title": "PayStage",
      "version": "0.2.2",
      "websiteUrl": "https://paystage.xyz"
    }
  },
  "source": "mcp_registry",
  "summary": "Umbrella MCP: payment preflight, auth watch, HIP-3 trade preflight, velocity checks"
}

What the leaf hashes

{"body":"78f19ef76e663ffd292a7817cfb39170b2223571fa86ca8babf5e01acde18fb7","id":1821126,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793564265918106,"prev":1300819,"subject":"mcp_registry:xyz.paystage/mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x56b97fa96f3462b4bf2f725f354ff695e34a901c6658104720cad39bd0396611
2. 0x08d10e95b6816294007298f62b59d52ff1a4b80b86a0325df73326d305033d8b
3. 0x1cc6db4b85d26b22eef084135259d14d9b5e406e761bcb6dde00c8241c02054d
4. 0xd7e947dc7b57012fb3b00e8749141c4c08cab6d2584997bfb69d16f99a262848
5. 0x49c289217896da405ce28191c4e05020fdc3c7f69eac5edd43f70c0d9bd4fd93
6. 0x6d60cc2d1cf0284f8c16b8efe81d05b7724163e1e2c9d9ede53e541eb7f4857a
7. 0x16c1433b5a5bb3057d3f5d4b8060f35dc0a10ca1a3a87a76d80692242e3e4e9b
8. 0x13c622b96073f5bcbba47dfa70cf9078bf30c48f8ab290c8058b3e93576835c7
9. 0x8442363da6a2a6dd6bfffed861b8a60186ad417e6181337b106183a467d05374
10. 0x0fe878e26eb6f6d964eb6e96461bf9eef96fad3d6ca4c41e61cbe23e53108ddc
11. 0xbd61b224059184447bdd190af8968b36032eda8a68bb6541a95065cedff414d4
12. 0xde1fd31d10ba36dac3c345ea907bd1d4fd47e4fc9fb148e86bb9173da80d02bd
13. 0x25c3242ac264be301989809e7441ef0e86b1880cd2901fd07b765f01885b4af0
14. 0x9338fa49a0c5f3f5d810da4bc7c55c4f87067074ebe5e189dc6fb19ffee0ed93
15. 0xe622664153c4bb92e64b5edf8615a790cb48a8f528ac34b3faa4ef4dd70e05dd
16. 0xc1f6e8dd182b37cbb6e04d0e69486bd40d440934f8e373b9bae8cb78de508bba
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90