Evidence row 24663

What was observed

{
  "endpoints": [
    [
      "web",
      "https://arcaeon.io/proves"
    ]
  ],
  "name": "Arcaeon Adapter",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-23T12:00:13.637769Z",
        "status": "deprecated",
        "statusChangedAt": "2026-09-25T05:24:14.185731Z",
        "statusMessage": "Merged into io.arcaeon/arcaeon (pip install arcaeon; server: arcaeon mcp)",
        "updatedAt": "2026-09-25T05:24:14.185731Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "MCP stdio proxy that logs the tool-call seam to the ledger without the agent's cooperation",
      "name": "io.arcaeon/adapter",
      "packages": [
        {
          "identifier": "arcaeon-adapter",
          "packageArguments": [
            {
              "default": "seam.log.jsonl",
              "description": "Seam ledger file (required). Keep it separate from any ledger the wrapped server writes: one file, one writer.",
              "format": "filepath",
              "isRequired": true,
              "name": "--ledger",
              "type": "named"
            },
            {
              "description": "Ends the adapter's own options; everything after it is the wrapped server's command.",
              "isRequired": true,
              "type": "positional",
              "value": "--",
              "valueHint": "separator"
            },
            {
              "description": "The MCP server command to wrap, followed by its arguments, e.g. python -m arcaeon_ledger.mcp_server --log agent.log.jsonl",
              "format": "string",
              "isRepeated": true,
              "isRequired": true,
              "type": "positional",
              "valueHint": "wrapped_server_command"
            }
          ],
          "registryBaseUrl": "https://pypi.org",
          "registryType": "pypi",
          "transport": {
            "type": "stdio"
          },
          "version": "0.2.0"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "adapter",
        "url": "https://github.com/dan8433-user/ledger"
      },
      "title": "Arcaeon Adapter",
      "version": "0.2.0",
      "websiteUrl": "https://arcaeon.io/proves"
    }
  },
  "source": "mcp_registry",
  "summary": "MCP stdio proxy that logs the tool-call seam to the ledger without the agent's cooperation"
}

What the leaf hashes

{"body":"a4bb5e6b1c5f682b5a8962b150615c49283074a6b87781dbe511f5a2d64d1c3b","id":24663,"kind":"listing","method":"baseline/1","observed_us":1793025352912180,"prev":null,"subject":"mcp_registry:io.arcaeon/adapter","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. 0x5ccfadef535804a693b9f9e6526774d82a0fe9432eeeda3deb198ba5df8a6a29
2. 0x7119669522a3232b2e3e608cfed26052fd76fce4b1258eaf9462685c1e0883b2
3. 0xf4cb1f4ecae4b9044949b0c47dc2dde8d882e03c72c0a18d37463a7c429b8cbb
4. 0xbed49c3b585383deb52c09928099556d5ae71702351ff71580169069c75d1d16
5. 0x9156416bc150f9064d6d13958ae53b41c9b4a3ea16b25ae16f6418def2346c9d
6. 0x75e38f1f7972aaa9a72e3cc0af646f959e3e55fac8e67f1151c148912a2371d2
7. 0xd5a3c25ea0c3a75e7bcaf71b8f81a86cfaf3648c965b18ce13497e7e755057df
8. 0x11cd833d5e1469fe8d57145a8d5db7c2543cbc5c9483a7ca9166772e5d04ed04
9. 0x7eb75dd1e81cda92f3d3644a17b5670e7101382a0c9721c62bb15dc5ee80c13a
10. 0x03c42b42d3530e8b1af42dd3b73806d66f3f775bcfa635014cc03b899ee19ea5
11. 0xc6d2784f07e8c139bf8f780cbae14d0deadd031c795b132568f433e9f582c7d3
12. 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae