Evidence row 4547

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

Kind: listing
About: source_record agentic_market:x402-presenceoperations-com
Recorded: 26 Oct 2026, 14:34 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 45ffd6be89a039cbd06c4cefe4621cd08cc56e1462668981df41b724aa4adcd9
Leaf: 0x3f737a1ca23e9ac4378a7299a84a22d7cb2e49e4e90d8cb0328431e6eb16b7e5

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.presenceoperations.com/services/carry-cost"
    ],
    [
      "x402",
      "https://x402.presenceoperations.com/services/execution-cost"
    ],
    [
      "x402",
      "https://x402.presenceoperations.com/services/liquidity-risk"
    ]
  ],
  "name": "x402.presenceoperations.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "x402.presenceoperations.com",
    "endpoints": [
      {
        "description": "What it costs to hold a perpetual position: the venue's current hourly funding signed for your side, projected over your horizon in your own units, with the mark-to-oracle basis, open interest, and the assumption behind the projection stated rather than implied.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 8,
            "group": "query",
            "name": "hours",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "BTC-PERP",
            "group": "query",
            "name": "market",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 1000,
            "group": "query",
            "name": "notional",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "LONG",
            "group": "query",
            "name": "side",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "6",
          "l30DaysUniquePayers": "4"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://x402.presenceoperations.com/services/carry-cost"
      },
      {
        "description": "What it would cost to execute a given notional in a given market right now: size-weighted fill price, slippage from the touch in basis points, and whether the visible book can absorb the size at all.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "BTC-PERP",
            "group": "query",
            "name": "market",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": 1000,
            "group": "query",
            "name": "notional",
            "required": false,
            "type": "number"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "BUY",
            "group": "query",
            "name": "side",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.0048",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "9",
          "l30DaysUniquePayers": "7"
        },
        "serviceName": "",
        "tags": [],
        "url": "https://x402.presenceoperations.com/services/execution-cost"
      },
      {
        "description": "A liquidity-risk profile of a perpetual market, walked from the visible book: absorbable notional at four slippage tolerances on both sides, spread, book imbalance, top-of-book concentration, open interest and day volume — with the visible book's limits stated on every response rather than implied.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "BTC-PERP",
            "group": "query",
            "name": "market",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.015",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": null,
        "serviceName": "",
        "tags": [],
        "url": "https://x402.presenceoperations.com/services/liquidity-risk"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "x402-presenceoperations-com",
    "integrationType": "",
    "isNew": false,
    "name": "x402.presenceoperations.com",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.009933",
      "currency": "USDC",
      "maxAmount": "0.015",
      "minAmount": "0.0048"
    },
    "provider": "x402.presenceoperations.com",
    "providerUrl": "",
    "serviceName": "",
    "tags": []
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"45ffd6be89a039cbd06c4cefe4621cd08cc56e1462668981df41b724aa4adcd9","id":4547,"kind":"listing","method":"baseline/1","observed_us":1793025278079601,"prev":null,"subject":"agentic_market:x402-presenceoperations-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).

0x3f73a76864cf206ca5790dc5b2eaefd5ba099046905e047c8da7c69e2a8c17d5
0x820caa7ffec7b6af45c84d863384a8f46c2e265a2259142a7330d7e852799ba5
0xafb4a0b458e577c01084a435a5c13313c29b28ffec4f8c0290eca6a40f1597fc
0x785e9a51ce721549d07fbe9e88c6f2f105885f26da9f95edee057081f6ed2fea
0xa896fefc5513388c5938ed31d1a1cd2b29cedb06184468bc7ed367850c13f242
0x0eb7ba0309657667f78febdb3874b970296c3febac426065aa86ee0484207180
0x8c77e2c4113f72a7d0073aeb3ba91ae7d0ac37fe4939cbbbc320cfb31bc6c923
0xc871133e6a9c0a19f393ab1cd620a9597eb074c0d225ca9fafc06a661a847546
0x287b3db7ff68b7aeb7e66325fd4cb6a0c7089e8bc4a57f81b0aef69457c486de
0x3aa1f01bbb88cb01a9628a415794e8a8fba10d2a03d54c08d2e3a38ce00d02cf
0xa4d1745f134661a77f8f2bfd58422252c41790ede9f0de54979c915510f5d550
0x1afc0318a98c6dbb5a80e5cb86eba22b844e3f3b185a16f17290e29ab7410f55
0x215f432600b78f2e7c9629cd10ce6ce4b7f3351b0b71f3f2c7dcb8e650f6cd63
0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

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

How to check it · This row as JSON