Evidence row 273121

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/BTC"
    ]
  ],
  "name": "signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/BTC",
  "owner_address": "0xca87adbcffdf6539a387783fef17a91dbabeef52",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "Individual arena strategy signal",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "outputSchema": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "schema": {
              "properties": {
                "strategy_id": {
                  "default": "vwap_reversion",
                  "description": "Strategy identifier (path parameter)",
                  "enum": [
                    "ema_5_breakout",
                    "rsi_7_extremes",
                    "rsi_reversion_swing",
                    "vwap_reversion"
                  ],
                  "type": "string"
                },
                "symbol": {
                  "default": "BTC",
                  "description": "Crypto asset ticker (path parameter)",
                  "enum": [
                    "BTC",
                    "ETH",
                    "SOL",
                    "DOGE"
                  ],
                  "type": "string"
                }
              },
              "required": [
                "strategy_id",
                "symbol"
              ],
              "type": "object"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "hold_time_sec": 300,
              "reasoning": "Bollinger band squeeze with volume expansion",
              "score": 0.82,
              "signal": "long",
              "sl_pct": 0.008,
              "strategy_id": "vwap_reversion",
              "strategy_name": "VWAP Reversion",
              "symbol": "BTC",
              "tp_pct": 0.015
            },
            "type": "json"
          }
        },
        "payTo": "0xCa87aDbCffdf6539A387783fEF17A91dbaBEEF52",
        "resource": "https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/BTC",
        "scheme": "exact"
      }
    ],
    "description": "Individual arena strategy signal",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "schema": {
              "properties": {
                "strategy_id": {
                  "default": "vwap_reversion",
                  "description": "Strategy identifier (path parameter)",
                  "enum": [
                    "ema_5_breakout",
                    "rsi_7_extremes",
                    "rsi_reversion_swing",
                    "vwap_reversion"
                  ],
                  "type": "string"
                },
                "symbol": {
                  "default": "BTC",
                  "description": "Crypto asset ticker (path parameter)",
                  "enum": [
                    "BTC",
                    "ETH",
                    "SOL",
                    "DOGE"
                  ],
                  "type": "string"
                }
              },
              "required": [
                "strategy_id",
                "symbol"
              ],
              "type": "object"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "hold_time_sec": 300,
              "reasoning": "Bollinger band squeeze with volume expansion",
              "score": 0.82,
              "signal": "long",
              "sl_pct": 0.008,
              "strategy_id": "vwap_reversion",
              "strategy_name": "VWAP Reversion",
              "symbol": "BTC",
              "tp_pct": 0.015
            },
            "type": "json"
          }
        },
        "schema": {
          "output": {
            "properties": {
              "hold_time_sec": {
                "description": "Suggested hold time in seconds",
                "type": "integer"
              },
              "reason": {
                "description": "Present when signal is null (e.g. no_signal, no_context)",
                "type": "string"
              },
              "reasoning": {
                "type": "string"
              },
              "score": {
                "maximum": 1,
                "minimum": 0,
                "type": "number"
              },
              "signal": {
                "enum": [
                  "long",
                  "short"
                ],
                "nullable": true,
                "type": "string"
              },
              "sl_pct": {
                "description": "Stop-loss percentage",
                "type": "number"
              },
              "strategy_id": {
                "type": "string"
              },
              "strategy_name": {
                "type": "string"
              },
              "symbol": {
                "type": "string"
              },
              "tp_pct": {
                "description": "Take-profit percentage",
                "type": "number"
              }
            },
            "required": [
              "strategy_id",
              "symbol"
            ]
          }
        }
      }
    },
    "lastUpdated": "2026-10-26T16:12:01.861Z",
    "quality": {
      "l30DaysTotalCalls": 12,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-26T16:12:01.662Z"
    },
    "resource": "https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/BTC",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Individual arena strategy signal"
}

What the leaf hashes

{"body":"719ff8515fef9eb2190d099bde96770d4411c437afeff33b3cddff722cdb326d","id":273121,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793039067693689,"prev":262240,"subject":"x402_bazaar:https://signal-engine-production-d88d.up.railway.app/v1/arena/vwap_reversion/BTC","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. 0x32b67995664da5633c16d8555ed386754411882bd755cef45ca1f8adeda2c5ec
2. 0x02cbd7033fab29afc2a963345ac207377f0a455181caee5d76fb647fb81b4170
3. 0x49e1bc41dc5da111314bb1a9a0c77271fced009f36d708e8d207ee03212b467c
4. 0x34468633a19dbd705fb22872e8fb5d31a7d725b497cdca818915957b063d9246
5. 0x8af1ca38b4b4da13c7492cdaeb5671997966348cad27466265152e9eb81a6ccb
6. 0xd0aea69d2e99ee7d48aadfa88ff4b56b528a780eec4ae05a0e5e3216e2bd07e4
7. 0x18d644619b9efadb71374d34989ea47278c5cefa2e7138a84bf11f2ea063a594
8. 0x705a0353aa1c202ca092d0c69a1b98aac1e72ed092c7163fcdce9560cd8af9a9
9. 0x0fb78d244a20004e04fbe01ec70f9831d44d86237b0382453ead0323c4df9ae8
10. 0xa0ebaa287767d7a753bad9278ae53729c65e45e91f8c870e598e2a5eef743e57
11. 0xc99ea26556ddad6b2fde7887de8c0190d3a7c645402227c5a281ba47e02a67e5
12. 0x2f4617d7a962f32849050ad5649d9dc4f962fd8618073cfa8519e6f862dfcef8
13. 0x08de74b7fb265ddb83e4c673da8a94e5f71829b2e6e7464c71c5138e450f2217
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae