Evidence row 547428

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.losbeto.xyz/arbitrage"
    ]
  ],
  "name": "Losbeto Market Intelligence",
  "owner_address": "0xd5ba9711a3d052846a3695c70e7fcb8b3168fe7d",
  "raw": {
    "accepts": [
      {
        "amount": "60000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "requestId": "9ba49d076521",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "60000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "9ba49d076521"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "60000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "9ba49d076521",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "60000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "9ba49d076521",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      }
    ],
    "description": "Cross-exchange and cross-chain arbitrage scan with actionable opportunities: venue pair, spread, and the direction to take.",
    "extensions": {
      "bazaar": {
        "dataFreshness": {
          "cache_ttl_s": 60,
          "live_data": "≤3s from source",
          "preview_data": "≤15min delayed"
        },
        "description": "Cross-exchange and cross-chain arbitrage scan with actionable opportunities: venue pair, spread, and the direction to take.",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "format": "json"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "opportunities": [
                {
                  "binance": 118.7,
                  "coingecko": 597.64,
                  "spread_pct": 403.488,
                  "symbol": "XMRUSDT"
                }
              ],
              "recommended_next": [
                {
                  "endpoint": "/council",
                  "price_usdc": "0.1500",
                  "why": "same category as /arbitrage"
                },
                {
                  "endpoint": "/launch-sniper",
                  "price_usdc": "0.1500",
                  "why": "same category as /arbitrage"
                }
              ],
              "version": "48.34.1-GUARDFIX"
            },
            "type": "json"
          }
        },
        "inputSchema": {
          "properties": {
            "format": {
              "description": "Response format (json)",
              "type": "string"
            }
          },
          "required": [],
          "type": "object"
        },
        "naturalLanguageDescription": "Cross-exchange and cross-chain arbitrage scan with actionable opportunities: venue pair, spread, and the direction to take.. Tier: core. Live via x402 or credits; free delayed preview via ?preview=1. Auditable on-chain settlement; Ed25519-signed metrics.",
        "pricingRationale": {
          "notes": "Aligned to x402 ecosystem median (~$0.028/call). Premium tiers reflect multi-source aggregation cost.",
          "price_usdc": 0.06,
          "tier": "core",
          "vs_median_x402": 2.14
        },
        "provider": {
          "name": "Losbeto Market Intelligence",
          "url": "https://api.losbeto.xyz"
        },
        "ranking_hints": {
          "category": "core",
          "primary_tag": "Trading",
          "unique_selling_point": "Cross-exchange and cross-chain arbitrage scan with actionable opportunities: venue pair, s"
        },
        "sampleQueries": [
          "GET /arbitrage?preview=1  # free delayed sample",
          "GET /arbitrage  # live data (returns 402 with payment challenge)"
        ],
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "queryParams": {
                  "properties": {
                    "format": {
                      "description": "Response format (json)",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "type": "object"
                }
              },
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "description": "Cross-exchange and cross-chain arbitrage scan with actionable opportunities: venue pair, spread, and the direction to take.",
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "trading",
          "execution",
          "crypto",
          "market-data"
        ],
        "title": "Arbitrage — Losbeto",
        "useCases": [
          "market data input",
          "AI agent research",
          "systematic trading"
        ]
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790529703/bazaar-icons/b104f2f7df1a4ce6.png",
    "lastUpdated": "2026-10-27T00:13:07.72Z",
    "quality": {
      "l30DaysTotalCalls": 76,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-27T00:13:07.518Z"
    },
    "resource": "https://api.losbeto.xyz/arbitrage",
    "serviceName": "Losbeto Market Intelligence",
    "tags": [
      "trading",
      "execution",
      "crypto",
      "market-data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Cross-exchange and cross-chain arbitrage scan with actionable opportunities: venue pair, spread, and the direction to take."
}

What the leaf hashes

{"body":"4ed1fb50d80525557fa04faedaf2165fbdfd02b9d1b50d28bdf635676b775e17","id":547428,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133196783360,"prev":425523,"subject":"x402_bazaar:https://api.losbeto.xyz/arbitrage","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x23abcf62afea507ed8702bcc88f72d0351033ba9c219c8aee56f5fc6435c2df8
2. 0xfb5b58b76060e053196e89c3ce865bd0f19fbf0f461413c683f338d7a928bf59
3. 0xe0d189a2065855d4b536858382eb1487cd64b0e54ed210e8613e796e599991e1
4. 0x62db185cbeac738a275a7b421e786bee0702ff5f3bc5b64f3bdbe73c811e7ae6
5. 0xba9949b1ebaf597fd51eb09deaa7ad391c1f7903404e7667dc95bd4d2c99a364
6. 0xff502d258ff3196735bebcf18e9694b5e4ab51b45a4fa984defd3c83523ffd04
7. 0x8d8c1a70f89d890c4c903e26ff2804e48a40dfa66fec8d9b8e52afe1d854f0cf
8. 0xd90871711b31defb431cf791ccdeeaa7e4ad37fc04cdf42178244784794fae02
9. 0x274c7e826462606f8d3a679747ac6791029eb87f6376a1341bc5796abebe2ef2
10. 0xe68dfeb8687e7a72eb078e3120558cc918d7671cbf9c7265556dfd784745f834
11. 0x111fd232396ead40450b60675620e12353358cd4516d410bf17aab840d3d4c3f
12. 0x1e91fb86942396b9cc1330407cbddfe6048e98bde8c739e6cb5545d04c5cadd7
13. 0x1a710d4f8e6092d584b581d8599ff9183c0008f9275cf0601c925b43b4e84ae6
14. 0xe8ee6f6ed50253c5ee2d1aa85a4b1a38ce94bca7f3b72fd1850f496152dbe285
15. 0xa383a1cfe9b3f6af67eb4c7642564b9424d46d7fca90e7ba175d549f8b67dd0c
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4