Evidence row 266775

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Japan vehicle statutory costs (車検 法定費用 and annual car taxes), verified against the official pages, by category: weight-tax (自動車重量税 at continuing inspection 2026-05-01 – 2028-04-30: registered passenger cars per 0.5 t for eco, standard, 13-year and 18-year rates, 2-year and 1-year, the full 2-year table to 3 t, kei flat amounts, the 13/18-year counting rules), weight-tax-eco (エコカー減税 period, new-registration bands, first-inspection exemption), cali (自賠責保険 for private passenger and kei cars: 12/24/25/36/37 months for policies starting before 2026-11-01, and 12/24/36 months from 2026-11-01 as keys ending -from-2026-11), inspection-fee (継続検査 fees: 持込, 保安基準適合証 counter and OSS, standard/small/kei, from 2026-04-01, with the previous amounts), auto-tax (自動車税 by displacement for cars registered from / before 2019-10, the 13-year surcharge table and rule, the EV reduction) and kei-tax (軽自動車税 10,800 / 7,200 / 12,900 and the surcharge and EV reduction rules). Each figure carries its value in JPY, unit, the Japanese term, the quoted row from the page, its source URL and effectiveFrom (and effectiveTo where the source states an end); the answer carries verifiedDate, freshness and a citation permalink. No category returns the listing; an unknown category answers covered:false with the nearest keys.",
      "inputSchema": {
        "properties": {
          "category": {
            "description": "one of: weight-tax, weight-tax-eco, cali, inspection-fee, auto-tax, kei-tax (omit to list all)",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "jp_vehicle_costs_lookup"
    }
  ]
}

What the leaf hashes

{"body":"acaaced0fd349e050e2b83ca2656088ea57cb9637cb8040ae5779f31bbd1d66c","id":266775,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793035531668215,"prev":null,"subject":"ce0c3d4e-0b44-442a-903f-e772987eb0f2","subject_kind":"endpoint"}

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. 0x35cf21971036befbd6a497a6317bad9a41547b9b6be12f13a0dc97eaeeed6f77
2. 0x77b1d66d88f910e4afc75394978de1b021727bbc41268f1878944be89285eb5c
3. 0x66244859551a9caf381fe9902c72103372d444d902f07a69236f48ad9623952c
4. 0x7e7a1d3bfff1de745931947940d6c71bd6eebe269893d2540f1cf254464c2150
5. 0x2c48bc8181bda831f12bca1c38b98b3b7bdcabb1060e5aa4c0769db91f71175f
6. 0x53ad06225d809800300f8d759555c819edc0849804fe98ba3611eb7b65923c94
7. 0x74bf4e6b85f929021407f430d7eadb16af7ac97fc0f1c8116008660cc608c40f
8. 0x30c89b7689ca45ec46b5c7bae31b148459a588a93d8d7f3ba2cc26806cb1e51c
9. 0xa74974835ebbfd6fc0e6af1b4e29bccbc7b37f00841c56f369617739571d0f54
10. 0x3b4b550f0a49402e225b6398198947525abec6713d355bfda590f5e3f7cbc218
11. 0x30ae64b0356d2a2933965306373f46f4bf64268b5a265594ef3370f079c19d92
12. 0x992ab7416b80cd368936c788f743fd3ea4576a49e22c75ab0262abf692f8ed6c
13. 0xdfc7a920beab71e6882e75c57bf136a5354c4ea989a35108a69046bc62059090
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae