Evidence row 40122

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/kirill-sviridov/handoff-mcp"
    ]
  ],
  "name": "Handoff",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-07-12T16:08:37.253599Z",
        "status": "active",
        "statusChangedAt": "2026-07-12T16:08:37.253599Z",
        "updatedAt": "2026-07-12T16:08:37.253599Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Cross-session memory for Claude over MCP — prioritised briefs, supersession, cross-project recall.",
      "name": "io.github.kirill-sviridov/handoff-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "~/.handoff-mcp/vault",
              "description": "Path to the shared markdown vault (one vault across all projects).",
              "name": "HANDOFF_VAULT"
            },
            {
              "description": "Project namespace for this agent/repo within the shared vault.",
              "name": "HANDOFF_PROJECT"
            }
          ],
          "identifier": "handoff-mcp",
          "registryBaseUrl": "https://pypi.org",
          "registryType": "pypi",
          "runtimeHint": "uvx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.4.0"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/kirill-sviridov/handoff-mcp"
      },
      "title": "Handoff",
      "version": "0.4.0",
      "websiteUrl": "https://github.com/kirill-sviridov/handoff-mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Cross-session memory for Claude over MCP — prioritised briefs, supersession, cross-project recall."
}

What the leaf hashes

{"body":"898e7860d8444a9b8c37d06c5082d4883e689f1f3e785af1ea859da6753dde20","id":40122,"kind":"listing","method":"baseline/1","observed_us":1793025396758395,"prev":null,"subject":"mcp_registry:io.github.kirill-sviridov/handoff-mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xbc507718acfde5889d3d6231dc5f54203b06b6045b235a8166c6084d7d046224
2. 0x9d3e08434ab415d0f744572f1229e94076b63d3ca2cbc20314cfedb23329eec2
3. 0xbfba850bacfbd2afd08a694a7188a7ad8d451ee092944233e6137c8ddb8d37b7
4. 0x17d8decc3fbb12a2a191adabb22562c0485b30239c79fec629b83412b3055e5c
5. 0xca98ab4623f4fe4893176d3c1c3c5c125ce1fe2b82a53b6cc2d834223b610844
6. 0xe2bcb9c276930b28701260006aba875d6873ec87eff0771c34e5411cd341f3c6
7. 0xefe413c5255d470d0ec9f77c9fc50e1e65d0081f51efb5cbd7b9b5b15f8c6d0d
8. 0x984112d6a2e628372940243dc67a235d5ee73e05f2f06fb345ba1434e4272946
9. 0x1852b4df43bbd0649889a2815cea70f15d47e0cdc89925b91f712a32a148db2c
10. 0x77d8c452cf2d4fc029b3a8d79e0beb037c1a055947ce64263cb5779b11b5cd76
11. 0x747da36f7781b2b20c53f35968bf28ef3b43376581ce1ca8987f1d7a2a347e61
12. 0x571bf2cc487a35d2ef7662b375d1fa9179fe0f6cab6f6cebdb1a6113d25f3c92
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae