Evidence row 123753

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://vaunt-dispatch-production.up.railway.app/agent/x402/venues
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: eb91b52a6ce7a4b30f62d422fc73517c467f8199135d1acc6549282357374d77
Leaf: 0xc137ee78ccc471867274c6265fa2b9a6f7daffd710483e1be1854d7b6f8aeb71

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://vaunt-dispatch-production.up.railway.app/agent/x402/venues"
    ]
  ],
  "name": "vaunt-dispatch-production.up.railway.app/agent/x402/venues",
  "owner_address": "0xf4b1093a9498523e18c484989df5157012abb85f",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xf4b1093a9498523e18c484989df5157012abb85f",
        "scheme": "exact"
      }
    ],
    "description": "Hyperliquid execution quality measured on our own orders: slippage vs mid (p50/p90 bps), taker fee actually paid, wall-clock to fill, fill rate — for perps and xyz tokenized equities — plus a liquidity snapshot (spread, round-trip cost, depth within 1%, funding APR) for the 25 deepest assets. Thousands of real IOC fills, refreshed continuously.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "dataset": "vaunt.venues.execution",
              "execution": {
                "hyperliquid:perp": {
                  "assets": 166,
                  "days": 68,
                  "fill_rate_pct": 100,
                  "fills": 2917,
                  "latency_ms_p50": 1400,
                  "slippage_bps_p50": 1.7,
                  "slippage_bps_p90": 7.9,
                  "taker_fee_bps_mean": 4.5
                },
                "hyperliquid:xyz": {
                  "assets": 89,
                  "fills": 1333,
                  "slippage_bps_p50": 1.3,
                  "slippage_bps_p90": 1.9
                }
              },
              "liquidity_snapshot_hyperliquid": [
                {
                  "asset": "BTC",
                  "depth_within_1pct_usd": 41000000,
                  "funding_apr_pct": 8.7,
                  "perp_spread_pct": 0.01,
                  "round_trip_cost_pct": 0.1
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "lastUpdated": "2026-10-25T15:24:28.189Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-25T15:24:27.976Z"
    },
    "resource": "https://vaunt-dispatch-production.up.railway.app/agent/x402/venues",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Hyperliquid execution quality measured on our own orders: slippage vs mid (p50/p90 bps), taker fee actually paid, wall-clock to fill, fill rate — for perps and xyz tokenized equities — plus a liquidity snapshot (spread, round-trip cost, depth within 1%, funding APR) for the 25 deepest assets. Thousands of real IOC fills, refreshed continuously."
}

What the leaf hashes

{"body":"eb91b52a6ce7a4b30f62d422fc73517c467f8199135d1acc6549282357374d77","id":123753,"kind":"listing","method":"baseline/1","observed_us":1793025623683411,"prev":null,"subject":"x402_bazaar:https://vaunt-dispatch-production.up.railway.app/agent/x402/venues","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON