Evidence row 1778352

What was observed

{
  "endpoints": [
    [
      "web",
      "https://alephgrid.dev/docs/agents-mcp/"
    ]
  ],
  "name": "dev.alephgrid/alephgrid",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-01T17:03:50.76147Z",
        "status": "active",
        "statusChangedAt": "2026-11-01T17:03:50.76147Z",
        "updatedAt": "2026-11-01T17:03:50.76147Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "documentation": "https://alephgrid.dev/docs/agents-mcp/",
          "llms_txt": "https://alephgrid.dev/llms.txt",
          "notes": "Alephgrid is a self-hosted, open-source spreadsheet (Apache-2.0). Every Alephgrid server exposes its own Streamable HTTP endpoint at <server origin>/mcp, and ships a stdio bridge: `alephgrid mcp --url <server origin> --token agc_...`. Connections are read-only and scoped to one space or workbook; every result carries a content-hashed receipt. Setup guide: https://alephgrid.dev/docs/agents-mcp/ — machine-readable docs: https://alephgrid.dev/llms.txt",
          "transports": [
            "streamable-http",
            "stdio"
          ]
        }
      },
      "description": "Read-only MCP access to Alephgrid workbooks: schema cards, reads, SQL, saved queries, receipts.",
      "name": "dev.alephgrid/alephgrid",
      "remotes": [
        {
          "headers": [
            {
              "description": "Bearer token for an agent connection, created in Alephgrid under a space or workbook (shown once, prefixed agc_)",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization",
              "value": "Bearer {agent_token}"
            }
          ],
          "type": "streamable-http",
          "url": "https://{alephgrid_host}/mcp",
          "variables": {
            "agent_token": {
              "description": "Agent connection token from your Alephgrid server (Agent connections, shown once, prefixed agc_)",
              "format": "string",
              "isRequired": true,
              "isSecret": true
            },
            "alephgrid_host": {
              "description": "Hostname of your self-hosted Alephgrid server, e.g. grid.example.com — there is no hosted endpoint at alephgrid.dev",
              "format": "string",
              "isRequired": true,
              "placeholder": "grid.example.com"
            }
          }
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/alephgrid/alephgrid"
      },
      "version": "0.1.0",
      "websiteUrl": "https://alephgrid.dev/docs/agents-mcp/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read-only MCP access to Alephgrid workbooks: schema cards, reads, SQL, saved queries, receipts."
}

What the leaf hashes

{"body":"1c05639f8fcb988d0919767b5bb959460faa807c9f85f94831d6bf84fdd107be","id":1778352,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793553453983160,"prev":null,"subject":"mcp_registry:dev.alephgrid/alephgrid","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. 0xd8ee723d75f3a84d27553029baa84a4b7d78b0b30425204701ec5abcb7d837c7
2. 0xd0dcf2e582e07b428ae29455750ec6399bf5ddb421bf73c1dddea8c9d7e49dd6
3. 0xcd5435647ee42f8b40801ea3896a854defac1dee06c208f7a034cfe42cc2ae2c
4. 0xe7e84d25320dfe85259d581f8e97d2a98422f24f71aafb62e17cdc39480db2c9
5. 0x784f98dfa28d1e1e9bcdaba5178de03e39485d26eb8d76aac8017255cc5236bf
6. 0x365d6258ba2a1ca5f538f7b325b9d74d5059a0a167859336f980197ddd2a19af
7. 0x3a8f3dd1bcaaec6bd64c7c281ba7ac574151b00659002bf287f95d89b8af7c7e
8. 0x65c2a4823c531fc1985525598fc95836e276d847fb47d799849aec2e4d744531
9. 0x6c891502975704fe09a53c09eaa75a7567e3dfb36d6df037e52d27982ff74a09
10. 0xe5ab46b4ba49568311544dd5cef203a01ee2b41b9ef0a8a6855fe5626268429f
11. 0x24eb0d9ee16d23f395c91dbcbad68dc1aa37656ef807b72e8c2c254c269a2500
12. 0x6ffebefb994a8d7b0f725f191858bf313c25e8fe228667ea783947d311f6f9ec
13. 0x5604ebb26a467785e0d13c4e7f1730e632124652e4df86dc2a82a0734e46265a
14. 0xe4cd5f56e5b4bb570140c97935a785daafbef0e607cafa2e0adfd0ff7fc250c7
15. 0xd3f5c237675f14686b3a3c2715c6735a96952155107d7b2cb9a44c56420170bd
16. 0xfc183bee85dc11a067fb710c6eb88824b94a516ddbdf2717b839e672a2206a7e
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90