Evidence row 3274

Observed 26 Oct 2026, 14:34 UTC, by baseline/1.

Kind: listing
About: source_record agentic_market:pay-omnidev-tech
Recorded: 26 Oct 2026, 14:34 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: b4143c5f0f1936663cb844b47a01ca1cffe015bac927514dcb4bfdea353e37de
Leaf: 0x1cc23ed857a5042d4e3fc22bb87a2881345c16275ac95e8f98900b3d3f61822b

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://pay.omnidev.tech/x402/brief"
    ],
    [
      "x402",
      "https://pay.omnidev.tech/x402/chat-nano"
    ],
    [
      "x402",
      "https://pay.omnidev.tech/x402/chat-small"
    ]
  ],
  "name": "pay.omnidev.tech",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "pay.omnidev.tech",
    "endpoints": [
      {
        "description": "Pay-per-call cited research brief. The request carries a query and 1 to 12 quotes with source URLs; the response is a short brief that cites only those quotes, at 0.008 USDC per call on Base. Payment settles after the brief is produced. A client nonce header makes a retry free of a second charge.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "citations",
            "required": false,
            "type": "array"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 200,
            "group": "body",
            "name": "max_tokens",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "What does the source say about settlement timing?",
            "group": "body",
            "name": "query",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.008",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "OmniProvider",
        "tags": [
          "llm",
          "chat-completions",
          "openai-style",
          "pay-per-call",
          "prepaid-credits"
        ],
        "url": "https://pay.omnidev.tech/x402/brief"
      },
      {
        "description": "Pay-per-call chat completion on the nano tier. One request returns one assistant message, limited to 1000 input and 256 output tokens, at 0.006 USDC per call on Base. Payment settles after the response is produced. A client nonce header makes a retry free of a second charge.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 64,
            "group": "body",
            "name": "max_tokens",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "messages",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.006",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "OmniProvider",
        "tags": [
          "llm",
          "chat-completions",
          "openai-style",
          "pay-per-call",
          "prepaid-credits"
        ],
        "url": "https://pay.omnidev.tech/x402/chat-nano"
      },
      {
        "description": "Pay-per-call chat completion on the small tier. One request returns one assistant message, limited to 8000 input and 1024 output tokens, at 0.008 USDC per call on Base. Payment settles after the response is produced. A client nonce header makes a retry free of a second charge.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 64,
            "group": "body",
            "name": "max_tokens",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": [],
            "group": "body",
            "name": "messages",
            "required": false,
            "type": "array"
          }
        ],
        "pricing": {
          "amount": "0.008",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "1"
        },
        "serviceName": "OmniProvider",
        "tags": [
          "llm",
          "chat-completions",
          "openai-style",
          "pay-per-call",
          "prepaid-credits"
        ],
        "url": "https://pay.omnidev.tech/x402/chat-small"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "pay-omnidev-tech",
    "integrationType": "",
    "isNew": false,
    "name": "pay.omnidev.tech",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.007333",
      "currency": "USDC",
      "maxAmount": "0.008",
      "minAmount": "0.006"
    },
    "provider": "pay.omnidev.tech",
    "providerUrl": "",
    "serviceName": "OmniProvider",
    "tags": [
      "llm",
      "chat-completions",
      "openai-style",
      "pay-per-call",
      "prepaid-credits"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"b4143c5f0f1936663cb844b47a01ca1cffe015bac927514dcb4bfdea353e37de","id":3274,"kind":"listing","method":"baseline/1","observed_us":1793025272597732,"prev":null,"subject":"agentic_market:pay-omnidev-tech","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).

0x1cc221e4c9d08cd743553ae39466a09e8aca4e986523304ed9ec2cf67584cf49
0xac3a39d38a20e16e8d909eadcc5a6415cf24c5a58df0033fcd0c2f6728f87f60
0x706ae27af2a90439b5c9efd3cc4e14725101d69a877032d4fe5c509629e4e29a
0x77254833b0667c80bf0b5bef555dd1193494921419f7133f8448e0496fc88be7
0xe6731602837192c06156954b775823db63e65c3a382b8d1058de1db4edf6b70d
0x7f0ca56ada6c3c0880f0b24b8aa3c98443b27fe6dae45b4afeefeda26cdc642b
0x010ab808aaf05f01c89433ebfb7f94efb5986f4b819cace53939c0e70cef1e1e
0x266aa26f31bf37c346b8b575d4a06e2e43300adeab8b4e710ba423d180ebf897
0xafb3e7dad8d01e32d36a6303b87e08e512d3654afb3024366acc02edb4e5930f
0x913900416f7046fb32d071616f60d33caf9d9e72606fee360a2d8e16507ccace
0x15110e1ab8fe267895da4a2cf012c17f5824a8afca5d2dac1f158d633e16c91c
0x8e3531af6dd328ff9a174dd19751228f67fa0773c68a89edf859dffbd7b098c3
0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON