Evidence row 3476

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://regex.openverbs.com/v1/match"
    ],
    [
      "x402",
      "https://regex.openverbs.com/v1/replace"
    ],
    [
      "x402",
      "https://regex.openverbs.com/v1/split"
    ],
    [
      "x402",
      "https://regex.openverbs.com/v1/test"
    ]
  ],
  "name": "regex.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "regex.openverbs.com",
    "endpoints": [
      {
        "description": "Find the first match (or all matches with all=true) of a RE2 pattern, returning each match's text, start/end offsets, and numbered and named capture groups. No match is a successful 200 with an empty match list.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": true,
            "group": "body",
            "name": "all",
            "required": false,
            "type": "boolean"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Ada Lovelace",
            "group": "body",
            "name": "input",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "([A-Za-z]+)",
            "group": "body",
            "name": "pattern",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Find matches and capture groups",
        "tags": [
          "find regex matches",
          "regex capture groups",
          "extract pattern matches",
          "named group lookup",
          "re2 match api"
        ],
        "url": "https://regex.openverbs.com/v1/match"
      },
      {
        "description": "Replace matches of a RE2 pattern with a replacement string. Replaces all matches by default (set all=false for first-only). The replacement may reference capture groups with $1, $2 or ${name}. Returns the resulting string.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": true,
            "group": "body",
            "name": "all",
            "required": false,
            "type": "boolean"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Ada   Lovelace",
            "group": "body",
            "name": "input",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "\\s+",
            "group": "body",
            "name": "pattern",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": " ",
            "group": "body",
            "name": "replacement",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Replace matches",
        "tags": [
          "regex replace",
          "replace pattern matches",
          "regular expression substitution",
          "capture group replacement",
          "re2 replace api"
        ],
        "url": "https://regex.openverbs.com/v1/replace"
      },
      {
        "description": "Split the input into parts on each match of a RE2 pattern. An optional limit caps the number of parts (0 = unlimited). Returns the parts array and its count.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "red, green, blue",
            "group": "body",
            "name": "input",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 0,
            "group": "body",
            "name": "limit",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": ",\\s*",
            "group": "body",
            "name": "pattern",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Split by a pattern",
        "tags": [
          "regex split",
          "split by pattern",
          "regular expression delimiter",
          "re2 split api",
          "tokenize text with regex"
        ],
        "url": "https://regex.openverbs.com/v1/split"
      },
      {
        "description": "Test whether a RE2 pattern matches anywhere in the input. Returns { matched }. RE2 guarantees linear-time evaluation, so this is safe against catastrophic backtracking. An invalid pattern is a clean 400; no match is a successful 200.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "i",
            "group": "body",
            "name": "flags",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "The cat sat on the mat.",
            "group": "body",
            "name": "input",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "\\bcat\\b",
            "group": "body",
            "name": "pattern",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Test for a match",
        "tags": [
          "test regex",
          "regex match boolean",
          "check pattern match",
          "re2 test api",
          "safe regex test"
        ],
        "url": "https://regex.openverbs.com/v1/test"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "regex-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "regex.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.004",
      "currency": "USDC",
      "maxAmount": "0.004",
      "minAmount": "0.004"
    },
    "provider": "regex.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "find regex matches",
      "regex capture groups",
      "extract pattern matches",
      "named group lookup",
      "re2 match api",
      "regex replace",
      "replace pattern matches",
      "regular expression substitution",
      "capture group replacement",
      "re2 replace api",
      "regex split",
      "split by pattern",
      "regular expression delimiter",
      "re2 split api",
      "tokenize text with regex",
      "test regex",
      "regex match boolean",
      "check pattern match",
      "re2 test api",
      "safe regex test"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"b0456776a5420bd7fbcf269767bf755d8ca8986ba9f9197005d43a7c44194a64","id":3476,"kind":"listing","method":"baseline/1","observed_us":1793025273277192,"prev":null,"subject":"agentic_market:regex-openverbs-com","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. 0xe1fe44407ca8f3ba638a32527b907312b05417a917f0af727260cb8e5079c872
2. 0x90d277789074ada870650ba3fd51de7955cd9205002e7dc882ee9d839b9274b0
3. 0xe20a75afbc8ae70b69f68942af9bd1b8303bed6c5a408b278672ad14bda40e9b
4. 0xd8262bba60bcfd461b2e394c963006352f450640905170b112f92c1d351e7de0
5. 0xde3d7172c6b3f5dcb8f3ec661574ef7ef96ca89485a73f6bbbffc59b42c70800
6. 0x31ef894ca18511cf4a7ebf2433c2fb3b9bbc64174fe43a9c40cabe80dbd81bf4
7. 0x788f2b7c7ed9db6f423380699e763cf388ee9f7014382595da132eb235e28d78
8. 0x619226b081f8ec738be488c7c844bf6414cb359178e46efadd8d2f07fbd66e5e
9. 0xe063f5fccc9cbc21acabf9481af1cf1a69302a8ff004733c8d05c188c56f3cbe
10. 0x49d720e73d446e1def3567153233c121c2d3097da1088aec52da97cc45a1a260
11. 0xce35ce45ef8f8ea3dfabeeed3d2069f34fb82c77d0d8f31e3429b7d6deb0a351
12. 0x714c96bd488ccf4af927c8bc83397404f7f6f1b165b622d0e8216290209825e4
13. 0x3fcdf7fa32ccefe771eb57ae3015142065d64e3ce732fea7d11b9a3c99dde44f
14. 0x0b7541c75cc482a7134110311d7dbd02095d969ba21177de9b21a52a55981718
15. 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae