Evidence row 271780

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":271780,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793038605656654,"prev":265512,"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).

1. 0x4c1a327090c496a2bfab471737bec93d52b443fb4d206d594814696075bbeaf8
2. 0x726429b85ba14bed0b12d37482bde21682a6de3ec30242f993f7e8ce7179b735
3. 0x9058ed0794482a668f66a33b18f5e5809763618e96d4460c259221e2317fe688
4. 0x706d25e25dc53bfacacca402cb40660012c13799669ddd7d4f5684e0085e4cbb
5. 0x7f789e592ddbc18ad8e3d3a3cfa94a1d15cf5b5080ae0fc1ea9873b0117857e1
6. 0x8daa3be7b209e49ab710a15962ed7dc0a706b5f8b312e9ab1566b90984285eea
7. 0x94084b4a91e68ae5c83b3e95b23698aa1ec9d14f2a02fcdf9007454cbe13e49c
8. 0xbb1c9345486ad662c5120c7fe86bf9130dbe9428f6cd9edd7212dc767e022df1
9. 0xd94cbc3ad37ad415a29ffaccb46b6427a862230c72d0f12802209114d0a5cfbb
10. 0x5e5595f403ae2f6e6bc3afc146009e77398a17f4b51a39a54f14d6f8a2b599cb
11. 0x8e1dce5acc3a34df8e5fee91635037c0b87740a313eb455495b8fa04b41070e7
12. 0x67ae8949b58cb7b0dd4cfa0f9aeeee715e0ae6b87fef0ba46483bbf280004c53
13. 0x1ffd24a0422348bb2305058cc138e276511e1c074bf8139af5b773941f0e5de2
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae