Evidence row 123737

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://vaunt-dispatch-production.up.railway.app/agent/x402/cost/DOGE"
    ]
  ],
  "name": "vaunt-dispatch-production.up.railway.app/agent/x402/cost/DOGE",
  "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": "True cost of trading DOGE on Hyperliquid, measured on Vaunt's own IOC taker orders: slippage vs mid (p50/p90 bps), taker fee paid, wall-clock to fill, fill rate, against the venue-class median, plus spread, round-trip cost, depth within 1% and funding APR. Real fills, not quotes.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "asset": "DOGE",
              "dataset": "vaunt.cost",
              "liquidity": {
                "as_of": "2026-09-09",
                "depth_within_1pct_usd": 4164926,
                "funding_apr_pct": 8.7,
                "perp_spread_pct": 0.01,
                "round_trip_cost_pct": 0.11
              },
              "our_fills": {
                "days": 21,
                "fill_rate_pct": 100,
                "fills": 38,
                "last_fill": "2026-09-09",
                "latency_ms_p50": 1380,
                "since": "2026-07-16",
                "slippage_bps_p50": 1.2,
                "slippage_bps_p90": 5.9,
                "taker_fee_bps_mean": 4.5
              },
              "venue_class": {
                "class": "hyperliquid:perp",
                "latency_ms_p50": 1400,
                "slippage_bps_p50": 1.7,
                "slippage_bps_p90": 7.9,
                "taker_fee_bps_mean": 4.5
              }
            },
            "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": "2026-10-06T16:42:53.043Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-06T16:42:52.856Z"
    },
    "resource": "https://vaunt-dispatch-production.up.railway.app/agent/x402/cost/DOGE",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "True cost of trading DOGE on Hyperliquid, measured on Vaunt's own IOC taker orders: slippage vs mid (p50/p90 bps), taker fee paid, wall-clock to fill, fill rate, against the venue-class median, plus spread, round-trip cost, depth within 1% and funding APR. Real fills, not quotes."
}

What the leaf hashes

{"body":"804e491c1da48d28574a213a083f8f7d1d31ee9556e9749417b991edfcd8ef6e","id":123737,"kind":"listing","method":"baseline/1","observed_us":1793025623665938,"prev":null,"subject":"x402_bazaar:https://vaunt-dispatch-production.up.railway.app/agent/x402/cost/DOGE","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. 0x61143851cd3f97a1ab8bc782c17a3b327b4938edcc4f60e4efeb338d7e69ba90
2. 0xce70802576c2a3daf35c65a07873be29a2ac383333d1d2b88a561623dbf0a73a
3. 0x485fa782d1d618b1a96257399e1fc1c42ca06cf358b2b934c6bdec31578a3b8f
4. 0x3f0ac856fd28047ee57455d9821fb94df028a089ad090d2f435dd8702423fdfa
5. 0x585cc1fe1f38501e90e67c1769e3a7aadcc77e6f9c9aa181c061f96060a327f8
6. 0xdc150863fd77d27455885dcd6074c35bd9f34737a9f832079ca34d59953eeec1
7. 0x1ecd71d29a9144f52788ea118caa85541ed537f16d4643842c20f16ec986e472
8. 0x31f08a647f7d39300c0cef045119792ebb48ad226b73747d85265aa61a635e7b
9. 0x1b6b041c4f63a13850a0ef9b8a0cc3d69f81b0bff6c0fee5059731c160e5c529
10. 0xe260b2e40b95bbf4bea407155c3f0fd2821a2b48a48010e119c9c3a25f20adb5
11. 0x52877ea072e10a1d3a921f7b54362005ad7a9baf5c99f31ec73a534bfea8930d
12. 0xf4e3bedc99674db9d8ab4bc7655992ec76f822b327e6c89599b0baa3756fbd19
13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae