Evidence row 562784

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Verify a VerixID registration record using a Record ID, optionally with an Ownership Key. Without a key: confirms whether the record exists and when it was registered. With a key: additionally proves ownership of the record. Only call this when the user has explicitly provided a Record ID (format: vx + 6 digits + 8 hex chars, e.g. vx202603a1b2c3d4). Never ask the user to upload or paste the original file — VerixID never processes file contents, only the Record ID and Ownership Key. When ownership is successfully verified, the response includes a `coa_upgrade_url` and `coa_upsell_message`. In that case, proactively share that message and link with the user as a next step — a Certificate of Authenticity (COA) is a downloadable, presentable proof of their verified record (e.g. for legal, client, or archival use). Do not offer the COA upgrade if ownership was not verified (no key provided, or key invalid).",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "ownership_key": {
            "description": "Optional 64-character hex Ownership Key, to additionally verify ownership of the record.",
            "type": "string"
          },
          "record_id": {
            "description": "VerixID Record ID, format: vx + YYYYMM + 8 hex chars (e.g. vx202603a1b2c3d4).",
            "type": "string"
          }
        },
        "required": [
          "record_id"
        ],
        "type": "object"
      },
      "name": "verixid_verify"
    }
  ]
}

What the leaf hashes

{"body":"a3df03b68d4d341e7dfc9372e21309de6a315d0cd39e25170074133168ff6ae2","id":562784,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793137512406945,"prev":null,"subject":"c16fbd12-9934-46e5-bc99-e620862b5bc4","subject_kind":"endpoint"}

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. 0xc8fb59a88c6ee0b5fe67fee4cd765c122710fb2f3b6f38fca4c285c43d0b339a
2. 0xa94cc1b1bc87e67add628561d23e2d63fc03d7845c28bb668d55faeb138d6c03
3. 0x72724a7bd6c2fd02ecf0edb788c5d9b2134c8206513653dcc144d12b580510a9
4. 0x364024d70031b274836a3e77a089d6a195a5c18d60a454a07918ecf89ec5cf64
5. 0x69216b189b106cb7e944eb5d6076cd219b083ecc37b630bfa47269e1e2664f05
6. 0x6474c452a719767c255e9ba0946935ac54fe7953b68bd86cfa85845f4f0a16ad
7. 0x76f556f0497c1f86915f9eaeb66c7a057516feb8ae4c1ddd9e22d55bef08f967
8. 0x0f9a561f051496f2c88ea7e0ba1ec6d7b791c8586b05f599456e16059f429331
9. 0xf7e4abc3b39decb3b7b07e51f972237b0b96a73d0e8f279fdf47a1c0a839582f
10. 0x4277a4824a2d736f4a1c4b1cd631817841bf312f2a5427a5e9afa71523cd9ca8
11. 0x2cf261bd2238b74a95bc8d9823ad293037abc046c04aeff157cde0c97263ed73
12. 0xd16d7e5f125e1d777c4add2d34626605aa2a6b03288469395f9c1f401de8e9e1
13. 0x938752e9acd199cd15f468392bc2dd8eefc52293e7144e30b87b241ca6b2513b
14. 0xcc49fd573532e5a29f5be4033f62a2eff71456c020bd2258312b98e95cfe301e
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4