Evidence row 278738

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": "56ffc48a41a5",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "60000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "56ffc48a41a5"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "60000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "56ffc48a41a5",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "60000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "56ffc48a41a5",
          "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": 592.54,
                  "spread_pct": 399.191,
                  "symbol": "XMRUSDT"
                }
              ],
              "recommended_next": [
                {
                  "endpoint": "/agent-call",
                  "price_usdc": "0.1000",
                  "why": "same category as /arbitrage"
                },
                {
                  "endpoint": "/alpha-signal",
                  "price_usdc": "0.0800",
                  "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": "2026-10-26T14:36:24.836Z",
    "quality": {
      "l30DaysTotalCalls": 78,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-26T14:36:24.436Z"
    },
    "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":"106dedf7559671064333f1b300749b152864e0157ce7b244c97d17758599d914","id":278738,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042079068821,"prev":200482,"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 2026-10-26 (296695 rows).

1. 0x93712b81f8e44ff6c466d681d87aec267cff0b7320f2c03af4e2a29a72239636
2. 0x1a44aa0caa34ba3a492bc2bc56d41c261b2b2c67fa5cf1c89a71bbbd4a4cad88
3. 0x5a4057f5d5e46f57a56f2d27260676204ae25fadb50011d97afac5a18b0c24cc
4. 0xeb17a9ea06189824f0ef55de6a937804e7bd0673a24c201c65fa941ba13ba6a7
5. 0xbe767507d78296268f6e3383ed0dcd8243a1569a9cde419bb1483431aa51dd19
6. 0x64c21912009fe44bae35b2f86b3e041173e208cc04638822d40ac1d4639f5f59
7. 0x238d6844e185945e3ae9e2242f04082ce92d12e3e68ab901e5046063b94f8985
8. 0xf10bbe3177c7f1c62a61bd89a66265a4c2a5256b209ac9feefcb8110e95626ba
9. 0x9c935e0d4bfff802c2c603de72b42f45c679ee9ab100bb7283c50b183356680c
10. 0x1452bac1c16ed1a13fd24d016370307a5402f74d73cad5641a5508fdb4d2c5cb
11. 0xcd52656344e352446858a7d55feb9336b07dd3ad98715c122aaf69d4eb3d6ca8
12. 0x3b55f6d5345bce3e1332e014f19526d25328fb6283d3518837a015c3621c0d1c
13. 0x45c1d3062bbe98a6b1540c7e2ccf6516eedd6ef07fdfeb1ba77ee6272970447c
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae