Evidence row 282889

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/SQLazy/tabulariumx409/tree/main/mcp"
    ]
  ],
  "name": "Tabularium",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T19:19:17.892079Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T19:19:17.892079Z",
        "updatedAt": "2026-10-26T19:19:17.892079Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Persistent, hash-chained agent memory. Pay per call in USDC over x402; verify history offline.",
      "name": "io.github.SQLazy/tabularium",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "0x-prefixed EVM private key of the wallet that pays (use a dedicated wallet with a small USDC balance)",
              "isRequired": true,
              "isSecret": true,
              "name": "TABULARIUM_PRIVATE_KEY"
            },
            {
              "default": "1",
              "description": "Spend cap for this server process, in USD",
              "name": "TABULARIUM_MAX_SPEND_USD"
            },
            {
              "description": "Service base URL (defaults to the public deployment)",
              "name": "TABULARIUM_URL"
            },
            {
              "description": "Optional pinned Ed25519 signing key (hex) that exports must verify against",
              "name": "TABULARIUM_PUBKEY"
            }
          ],
          "identifier": "tabularium-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.1"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "mcp",
        "url": "https://github.com/SQLazy/tabulariumx409"
      },
      "title": "Tabularium",
      "version": "0.1.1",
      "websiteUrl": "https://github.com/SQLazy/tabulariumx409/tree/main/mcp#readme"
    }
  },
  "source": "mcp_registry",
  "summary": "Persistent, hash-chained agent memory. Pay per call in USDC over x402; verify history offline."
}

What the leaf hashes

{"body":"12a59568d98f5d3f60ced61dfc2534d1a23d933438042c3601c141cd992047c0","id":282889,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793042617077306,"prev":null,"subject":"mcp_registry:io.github.SQLazy/tabularium","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. 0x8780397711c334d9c837db57825c8c98b0c67484f68c233f4882433894e2a7e0
2. 0xe18feed1c56047b6a0559dd022f5ef3129cb83436438b63bd87d4ae1d15659f5
3. 0x579b922563b750fd702d18044dc2b10d140d34e5a90a3a9818da7ca3202f7e0e
4. 0x9cf55b324d80c90cacd6fe3069068eb5a95559241bd2c280e0006dc9d257f36c
5. 0x7a1f3b7152e9e471122989f198a010efb8df0537f7c1fb10ea0016190973f70d
6. 0x2e1089bc4e73335c78e111c00ff1664e69b5897fbc70f2ae735fb3d0aa359c63
7. 0xe25366af2af274496ca41787eafb2c119ce9a251db42a02a5eb1561d64ea1966
8. 0xec5e8d8107df73a55b5645397c05edbd1f63c299281c6362a3438a21d64fc937
9. 0xf711b9b9e4c3b8926dcd8da66413d329b6436fc26d19d8021ba003e1303e5918
10. 0xe0e4a60716d95ec12c35a9b9e1bff1012120a026fa97f38064a594590f5c029f
11. 0xab0c5c1fde083e427b8955a771d679773808751fc069bed2944e88e84fcb655e
12. 0x099dd43573993f2a1bea674129b7ed050429a0ac76c3bfda8aaf82a3af126469
13. 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae