addrbookFor publishers
← The evidence ledger

Evidence row 57774

Observed , by baseline/1.

Kind
listing
About
source_record mcp_registry:net.nexlab/trade-tariffs
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
fb93a7766262a47044f318a342976edebcdc5a9134ca35d0afbde4244d1b5016
Leaf
0x33e5ebca8be176ebcd6947dad5b328dfa2db9c2ac0ba2296b47cc81961edee59

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://mcp.nexlab.net/mcp/trade-tariffs"
    ],
    [
      "web",
      "https://mcp.nexlab.net/s/trade-tariffs"
    ]
  ],
  "name": "Trade Tariffs MCP",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-05T05:02:28.01732Z",
        "status": "active",
        "statusChangedAt": "2026-09-05T05:02:28.01732Z",
        "updatedAt": "2026-09-05T05:02:28.01732Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "US import tariff lookup against the official USITC Harmonized Tariff Schedule",
      "name": "net.nexlab/trade-tariffs",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://mcp.nexlab.net/mcp/trade-tariffs"
        }
      ],
      "title": "Trade Tariffs MCP",
      "version": "1.0.0",
      "websiteUrl": "https://mcp.nexlab.net/s/trade-tariffs"
    }
  },
  "source": "mcp_registry",
  "summary": "US import tariff lookup against the official USITC Harmonized Tariff Schedule"
}

What the leaf hashes

{"body":"fb93a7766262a47044f318a342976edebcdc5a9134ca35d0afbde4244d1b5016","id":57774,"kind":"listing","method":"baseline/1","observed_us":1793025443262988,"prev":null,"subject":"mcp_registry:net.nexlab/trade-tariffs","subject_kind":"source_record"}

Proof

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

  1. 0x33e5d5bbbf282a927e703279a17e3d4b4f5d9e24638d17f366ab8ea1c60ae7c5
  2. 0xdec1ca277793ad63afea71cef53462aeddcf52854fe2aa7f08e1b457a3b74e29
  3. 0x82bb7894d876a801ecd5ebe531604f45f5239a4e385071593759d0a017ae3dc3
  4. 0x89d6154233688498128c9a73d323400223f790aaed9669644686d19542e61a6f
  5. 0x7476deeae8cfcbb3acd7950bc0fdc57f7139b6ad964eb9c2065e92ea8687a18a
  6. 0xf119722ba2006a321884871d9e2e6a721fe6e069a98ad84181f97ea23bbfe4e6
  7. 0xd230429f5e9401f358071a63c4b2a85b724a5e0dc0710fd99f4950e68ddcfe49
  8. 0x0ba3b8298e36c394c6af1878cdc52cacb0867e6403435877a39bd328c8b0eaae
  9. 0xdc523b9e61ffd244a497361cd5402a75eaf83c7e318d79293ad63bd6bc9f06a6
  10. 0xcc3de2228ca9f90722824aeb1f6740dce363ec54f1223a4bfc96d012376efbc0
  11. 0x25f1494b636c5e3c47bd014c16b8f4b5df5a8fb62efdc32979420416a8736679
  12. 0xe57be1a98d96d75db9e9d2122794eabebfd735dea66e9d16ca63347243b3d483
  13. 0x08de74b7fb265ddb83e4c673da8a94e5f71829b2e6e7464c71c5138e450f2217
  14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
  15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
  16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON