Evidence row 3685775

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "List dentists, eye care practices, vets, dermatology or GI practices in a ZIP code, city or state, optionally filtered by ownership label. With industry \"brand\", list consumer brands instead (no location needed), filtered by label and by words in the brand, owner, backer or category (name), e.g. pet food brands with no known PE ties. Covers requests like \"dentists in Plano, TX with no PE ties\" (label=no_known_pe_ties) or \"PE-backed eye doctors in 75024\" (label=pe_backed,lender_owned). Labels: pe_backed, lender_owned (PE-backed, now lender-controlled), corporate_owned (not PE, owned by a company), health_system_owned, group_practice (owned by its dentists/doctors, no outside investor), vc_backed, no_known_pe_ties, unconfirmed, not_labeled; aliases pe and no_pe. Returns counts by label for the area, total, a page of results (limit up to 100, then next_offset) with each one's label wording and source, and the coverage note. Dental and eye care cover every NPI-registered practice; vet, derm and GI list only the tracked groups' locations. Some listings come from clinicians' individual NPI records and aren't confirmed open.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "city": {
            "type": "string"
          },
          "industry": {
            "description": "dental (default), eye, vet, derm, gi, or brand (consumer brands).",
            "enum": [
              "dental",
              "eye",
              "vet",
              "derm",
              "gi",
              "brand"
            ],
            "type": "string"
          },
          "label": {
            "description": "One or more labels, comma-separated, e.g. \"no_known_pe_ties\" or \"pe_backed,lender_owned\".",
            "type": "string"
          },
          "limit": {
            "description": "Results per page, default 20.",
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          },
          "name": {
            "description": "Only businesses whose name contains these words. For brands, words in the brand, owner, backer or category (e.g. \"pet food\", \"Sycamore Partners\").",
            "type": "string"
          },
          "offset": {
            "description": "Start of the page (use next_offset).",
            "minimum": 0,
            "type": "integer"
          },
          "state": {
            "description": "Two-letter state code or state name. Needed with city unless the city name is unique.",
            "type": "string"
          },
          "zip": {
            "description": "5-digit ZIP code.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "find_businesses"
    },
    {
      "description": "Get an owner group's ownership details: label and consumer wording, owner or PE backers and since when, PE stake (majority or minority), how it holds practices (buyout, partnership, joint venture, de novo), parent and brands, every source with its headline and date, and known locations by state. Covers questions like \"who owns Heartland Dental?\" or \"is Aspen Dental private equity?\" (brand names work). Also answers for consumer brands (\"Orvis\") and for the companies and PE firms behind them (\"Authentic Brands Group\", \"Sycamore Partners\"): the brands on our list they own or back.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "description": "Group id from another result, e.g. \"dental:heartland-dental\".",
            "type": "string"
          },
          "industry": {
            "description": "dental, eye (optometry, ophthalmology, optical), vet, derm, gi, or brand (a consumer brand). Leave out to infer it from the name.",
            "enum": [
              "dental",
              "eye",
              "vet",
              "derm",
              "gi",
              "brand"
            ],
            "type": "string"
          },
          "name": {
            "description": "Group, brand, company or PE firm name, e.g. \"Heartland Dental\", \"MyEyeDr\", \"Orvis\", \"Sycamore Partners\".",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_group"
    },
    {
      "description": "Checks whether one specific dentist, eye doctor, vet, dermatology or GI practice is private-equity backed, from its name plus city and state or ZIP. A street address or phone number makes the match surer. Also answers for a consumer brand by name or website (e.g. \"Orvis\" or \"orvis.com\"), with its owner, backers and sources. Returns a status (match, multiple_matches, possible_matches, no_match, need_location), a \"say\" sentence in the site's label wording, and matches with label, owner group, backers, PE stake and deal model, confidence, sources (headline, link, date), coverage and a correction link.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "address": {
            "description": "Street address, or a full address like \"1476 W Buckingham Rd, Garland, TX 75040\".",
            "type": "string"
          },
          "city": {
            "type": "string"
          },
          "industry": {
            "description": "dental, eye (optometry, ophthalmology, optical), vet, derm, gi, or brand (a consumer brand). Leave out to infer it from the name.",
            "enum": [
              "dental",
              "eye",
              "vet",
              "derm",
              "gi",
              "brand"
            ],
            "type": "string"
          },
          "name": {
            "description": "Business name as the user or a map listing gives it, e.g. \"Aspen Dental\" or \"Smile Magic of Garland\".",
            "type": "string"
          },
          "phone": {
            "description": "Phone number in any format.",
            "type": "string"
          },
          "state": {
            "description": "Two-letter state code (TX) or state name.",
            "type": "string"
          },
          "zip": {
            "description": "5-digit ZIP code.",
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "lookup_business"
    }
  ]
}

What the leaf hashes

{"body":"b6b12f45a874a392b55592561ca44e59708d4c8774332bcc264955c40b54fb6b","id":3685775,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793942614043184,"prev":2922759,"subject":"f242543e-1dca-43be-8127-bb1caf006fcc","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x23d78125b9e075d6e354c9437d08054019b67ddc754b144d26e9facdad39ede4
2. 0x62722249839615ed7c59bc2fee4e23202d1d20a32b8320521f2ab3c79abfe59d
3. 0xb6ca28a4bd5916dd623e9a4b1937ad467297b29884c6d99e6d493e33180eaddf
4. 0x3bb5b79ead15f8e4a8c69cac982c9ce0172d23acadd9a9fec036a5624ffd8af4
5. 0x60dd82ac3bc88b594a9099ffb898a5844b946b93585ddb5d8a408a9671a6dad5
6. 0x393c3532ab28b642d77cefff3c65a60835b61ed6c9c429f063e8618c4111cac4
7. 0x2adcb1fc68ad8e052adce29c0d107e467139ab84e540d7975ff19c9fd392f47d
8. 0x6d911779ffa1e839ab1d1db890dbf45fe59b7743b895e8bb2c7cecd51df9ac3a
9. 0x52fcb11d0da676a7cb47080961796901c09da15c2b077e3866fe0e30ed8f4188
10. 0x25c759d63de060beb8fa484becdf87df5bec6dfb7ac70b93e9dab2c5cb055d5a
11. 0xa07e0a4274562b03da30f2b5a9b8b26d8f9806500dae5193facd6dc13c2bd629
12. 0xf954175adae3ed0d2743cd88c8074b7b998c257faf3e1589f8c1574548cf17b8
13. 0x415c5fe0fa2c2d3255e82293a24d6e0e35071782fa66657d37ca26bf1ff7da09
14. 0xdd6caff8b0876542f26987c9cae49eee11e135210e6f435b006118b6d3e534e5
15. 0xb490b9bc961e5cbbfaf890e393a2eb3d2518e080e0a107acd232486f34cf7408
16. 0x0aaf291a2ffa2205e7df7531bf36800e377dfbd67208da05b97625f1cc49ce02
17. 0xa448dc698494f795f2240c0e7070e8a93eb263baee21ca4185a7d03432a614d8
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1