Evidence row 2030

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://data.openverbs.com/v1/diff"
    ],
    [
      "x402",
      "https://data.openverbs.com/v1/flatten"
    ],
    [
      "x402",
      "https://data.openverbs.com/v1/merge"
    ],
    [
      "x402",
      "https://data.openverbs.com/v1/patch"
    ],
    [
      "x402",
      "https://data.openverbs.com/v1/query"
    ],
    [
      "x402",
      "https://data.openverbs.com/v1/unflatten"
    ]
  ],
  "name": "data.openverbs.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "data.openverbs.com",
    "endpoints": [
      {
        "description": "Compute the RFC 6902 JSON Patch that transforms `source` into `target`. The patch is a minimal array of add/remove/replace operations.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "source",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "target",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Diff two JSON documents",
        "tags": [
          "json patch diff",
          "diff json documents",
          "compare json objects",
          "generate rfc6902 patch",
          "json document changes"
        ],
        "url": "https://data.openverbs.com/v1/diff"
      },
      {
        "description": "Flatten a nested object/array into a single-level object whose keys are the delimited paths to each leaf (default delimiter `.`). Requires an object or array.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": null,
            "group": "body",
            "name": "data",
            "required": false,
            "type": "object"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": ".",
            "group": "body",
            "name": "delimiter",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Flatten a nested object",
        "tags": [
          "flatten nested json",
          "object path flatten",
          "json to flat object",
          "flatten array object",
          "delimited keys json"
        ],
        "url": "https://data.openverbs.com/v1/flatten"
      },
      {
        "description": "Deep-merge an ordered list of JSON documents, left to right. Objects are merged key-by-key; arrays, scalars and null in a later document replace the earlier value (last-wins, no array concatenation).",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "documents",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Deep-merge JSON documents",
        "tags": [
          "deep merge json",
          "merge config objects",
          "combine json documents",
          "last wins merge",
          "json deepmerge api"
        ],
        "url": "https://data.openverbs.com/v1/merge"
      },
      {
        "description": "Apply an RFC 6902 JSON Patch to a JSON document and return the result. An invalid or unresolvable patch (e.g. a failed `test`, or a path that does not exist) is rejected before payment.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": null,
            "group": "body",
            "name": "data",
            "required": false,
            "type": "object"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "patch",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "4",
          "l30DaysUniquePayers": "4"
        },
        "serviceName": "Apply a JSON Patch",
        "tags": [
          "apply json patch",
          "rfc6902 patch api",
          "update json document",
          "json pointer patch",
          "validate json patch"
        ],
        "url": "https://data.openverbs.com/v1/patch"
      },
      {
        "description": "Evaluate a JMESPath expression against a JSON value and return the selected/projected result. A malformed expression is rejected before payment.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "data",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "example",
            "group": "body",
            "name": "expression",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Query JSON with JMESPath",
        "tags": [
          "query json with jmespath",
          "jmespath api",
          "select json fields",
          "json query expression",
          "extract data from json"
        ],
        "url": "https://data.openverbs.com/v1/query"
      },
      {
        "description": "Rebuild a nested object from a single-level object whose keys are delimited paths (default delimiter `.`) — the inverse of flatten. Requires a flat object.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": null,
            "group": "body",
            "name": "data",
            "required": false,
            "type": "object"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": ".",
            "group": "body",
            "name": "delimiter",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.004",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Unflatten a delimited object",
        "tags": [
          "unflatten json object",
          "flat keys to nested json",
          "expand delimited object",
          "rebuild nested object",
          "inverse json flatten"
        ],
        "url": "https://data.openverbs.com/v1/unflatten"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "data-openverbs-com",
    "integrationType": "",
    "isNew": false,
    "name": "data.openverbs.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.004",
      "currency": "USDC",
      "maxAmount": "0.004",
      "minAmount": "0.004"
    },
    "provider": "data.openverbs.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": [
      "json patch diff",
      "diff json documents",
      "compare json objects",
      "generate rfc6902 patch",
      "json document changes",
      "flatten nested json",
      "object path flatten",
      "json to flat object",
      "flatten array object",
      "delimited keys json",
      "deep merge json",
      "merge config objects",
      "combine json documents",
      "last wins merge",
      "json deepmerge api",
      "apply json patch",
      "rfc6902 patch api",
      "update json document",
      "json pointer patch",
      "validate json patch",
      "query json with jmespath",
      "jmespath api",
      "select json fields",
      "json query expression",
      "extract data from json",
      "unflatten json object",
      "flat keys to nested json",
      "expand delimited object",
      "rebuild nested object",
      "inverse json flatten"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"5098688e2e9aa3bcc6d6b563bd08c3c87f3e5b0155e0b8545f917175175d9b88","id":2030,"kind":"listing","method":"baseline/1","observed_us":1793025260105196,"prev":null,"subject":"agentic_market:data-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. 0x0b180c6efa5d7adfc5441be7ddd8c36e12fbb47f1b340fe627d3dd1f06eacb42
2. 0x3add10151bddec1472221f63bf0b9495a3e2fbc3695e3a9a699c1b6e7bff9c65
3. 0x540121e71a8a5c13d640e5ca57e1a31d997fb099ef77f48fd4a979c40ad9c609
4. 0x2c625510b325b1ba10e2928f26bc0e92479f22349115a3b5c9884c9455a7e2a7
5. 0x983a9c2210504134433a150c8f2f14024206779d7413c96e65296915ec91ba56
6. 0xa7940c22ee00cc717c8c668cd6b2a40387f539235f441dbe44979c9fc5c186e9
7. 0x9df68fddc632e463100699667656790f071230222da498dde9955d83f27a5e29
8. 0x007eb0a0511f0ff75c06b808dd543d782354601eb60ad032c2f0923f0398d247
9. 0x7e09408fcc0d9b90670693a070d6ec897d9a3cf600d3c8bce04013cec74d1903
10. 0x96dc6bd64fe78dd85e63b2a795828d2feea188bc55943b4d6ab1449dca715971
11. 0xb590404cb9438c769f672be0f0089b46b380374a2b3728911a35efd8d94b6a83
12. 0x0295c7c2280f85143f6ea027ec5cab1cda783eeef5bca0accb9aea607c5aa3c2
13. 0x5aefcf9e3d86e125861c0d490079969110eea8fc901ec61531bba10bb58258a1
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae