Evidence row 544384

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/SQLazy/tabularium/tree/main/mcp"
    ]
  ],
  "name": "Tabularium",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T19:35:06.906148Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T19:35:06.906148Z",
        "updatedAt": "2026-10-27T19:35:06.906148Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Agent memory and a signed spending ledger: pay any x402 API, keep a provable receipt.",
      "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"
            },
            {
              "default": "0.10",
              "description": "tabularium_pay: most one purchase may cost, in USD (ceiling 0.50)",
              "name": "TABULARIUM_PAY_MAX_USD"
            },
            {
              "description": "tabularium_pay: comma-separated networks it may pay on; default is the service's own network. eip155:8453 is mainnet (real money).",
              "name": "TABULARIUM_PAY_NETWORKS"
            },
            {
              "description": "Optional pinned Ed25519 signing key (hex) that exports must verify against",
              "name": "TABULARIUM_PUBKEY"
            }
          ],
          "identifier": "tabularium-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.4.0"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "mcp",
        "url": "https://github.com/SQLazy/tabularium"
      },
      "title": "Tabularium",
      "version": "0.4.0",
      "websiteUrl": "https://github.com/SQLazy/tabularium/tree/main/mcp#readme"
    }
  },
  "source": "mcp_registry",
  "summary": "Agent memory and a signed spending ledger: pay any x402 API, keep a provable receipt."
}

What the leaf hashes

{"body":"8054828c6cbf68e238b4afcbf16f8292c2f164eccb59fe05824d0d8026314e78","id":544384,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793131944923788,"prev":406389,"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 2026-10-27 (273461 rows).

1. 0xed6dcb19592a1f4806eb958a2e2c3d7f56319b8f3705b454d2e4b12b17bb4fd8
2. 0xaf80a630c14cba8ce1ca1a736ac887f9e31fb4243d14ac52e3128bbf2c20f286
3. 0xea6bcd30e50a49e7f44e2d08db93b4a1fa1eee4b9c20cb214d41ccc4fcc7823b
4. 0xa6e1f65bab960c4deddaf79e72d3dfe30a13575f73b42d6f2d5c340cf5c5b7fb
5. 0x31b7516690dac8eddd583d591aa4c8b1322d0551b9c02d750e7142e63e9125e0
6. 0xa9480588b99f71e9005c63a28bad031d0a779bdaae710419cc177ac68e09d4c0
7. 0xc5d842a8689ec74d2be524e8cdf98dab827af6a46e4a423b57c6fae9a8843912
8. 0xd2554f8c9b74ee3f2f1732950250f2f6ee552e0256c0178307d939f3dbdab201
9. 0x047641be305aa58742e9c24ce5c236b92ab9a859b5dfd207fbf2624cb08db96b
10. 0xaa641459302adde22dc32481fb241cabfec0126d1840e00062addb5172888cb4
11. 0x0a78a08a4d8ea932d1929a4db7274efa66e37530ebf9892f88bad1aa94953b78
12. 0x1bd815b8c338cfc2bcf769f9c67988a5890577c27b5e900948b5339a99e158a8
13. 0x89602081fbcc80aef8908f5df765767a1a41cc8b089111259ea78e6583a8bc4b
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4