Evidence row 15727

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.losbeto.xyz/dex-screen"
    ]
  ],
  "name": "Losbeto Market Intelligence",
  "owner_address": "0xd5ba9711a3d052846a3695c70e7fcb8b3168fe7d",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "requestId": "8a78213499b7",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "8a78213499b7"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "8a78213499b7",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "8a78213499b7",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      }
    ],
    "description": "DexScreener pair snapshot with liquidity, 24h volume and pair age, filtered to what is actually tradable. [Wrapper over a free public source (https://api.dexscreener.com (public, free)) — you pay for one schema, one p...",
    "extensions": {
      "bazaar": {
        "dataFreshness": {
          "cache_ttl_s": 60,
          "live_data": "≤3s from source",
          "preview_data": "≤15min delayed"
        },
        "description": "DexScreener pair snapshot with liquidity, 24h volume and pair age, filtered to what is actually tradable. [Wrapper over a free public source (https://api.dexscreener.com (public, free)) — you pay for one schema, one p...",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "query": "SOL"
            },
            "type": "http"
          },
          "output": {
            "type": "json"
          }
        },
        "inputSchema": {
          "properties": {
            "query": {
              "description": "Free-text search query",
              "type": "string"
            }
          },
          "required": [
            "query"
          ],
          "type": "object"
        },
        "naturalLanguageDescription": "DexScreener pair snapshot with liquidity, 24h volume and pair age, filtered to what is actually tradable. [Wrapper over a free public source (https://api.dexscreener.com (public, free)) — you pay for one schema, one payment rail, signed receipts and monitored uptime.]. Tier: discovery. 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 (~$0.028/call). Premium tiers reflect multi-source aggregation cost.",
          "price_usdc": 0.01,
          "tier": "discovery",
          "vs_median_x402": 0.36
        },
        "provider": {
          "name": "Losbeto Market Intelligence",
          "url": "https://api.losbeto.xyz"
        },
        "ranking_hints": {
          "category": "discovery",
          "primary_tag": "Trading",
          "unique_selling_point": "DexScreener pair snapshot with liquidity, 24h volume and pair age, filtered to what is act"
        },
        "sampleQueries": [
          "GET /dex-screen?preview=1  # free delayed sample",
          "GET /dex-screen  # live data (returns 402 with payment challenge)",
          "GET /dex-screen?query=SOL  # with parameters"
        ],
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "queryParams": {
                  "properties": {
                    "query": {
                      "description": "Free-text search query",
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "type": "object"
                }
              },
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "description": "DexScreener pair snapshot with liquidity, 24h volume and pair age, filtered to what is actually tradable. [Wrapper over a free public source (https://api.dexscreener.com (public, free)) — you pay for one schema, one payment rail, signed receipts and monitored uptime.]",
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "trading",
          "dex",
          "crypto",
          "market-data"
        ],
        "title": "Dex Screen — 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": "2026-10-26T14:24:27.463Z",
    "quality": {
      "l30DaysTotalCalls": 80,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-25T12:56:23.521Z"
    },
    "resource": "https://api.losbeto.xyz/dex-screen",
    "serviceName": "Losbeto Market Intelligence",
    "tags": [
      "trading",
      "dex",
      "crypto",
      "market-data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "DexScreener pair snapshot with liquidity, 24h volume and pair age, filtered to what is actually tradable. [Wrapper over a free public source (https://api.dexscreener.com (public, free)) — you pay for one schema, one p..."
}

What the leaf hashes

{"body":"57e4938e474f532398b6960e2c50a15443e14b13375ff685476137fcc2d2456b","id":15727,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025321308429,"prev":null,"subject":"x402_bazaar:https://api.losbeto.xyz/dex-screen","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. 0x70bf637780138da5c2e6b5b6ce465d86efa53ea7530f7fc00635b6167c79cb61
2. 0x7a3ba47edff5c8fa20a7652b3bc1c4953878b315903caa56065cec6a21ad5431
3. 0xf98bcdc6952609edf52a067d199cec6d30aae0440d86ca3e04f563b7778783fa
4. 0xca24ba747e417bb7ad85082d1c46656502a6c1f841fea00d7ab6f57e09092532
5. 0xe4fefbae9508d776040325161d6fb9e67ff541d18a7c0f9980bd78a7b04fed6b
6. 0x1044acfcb710cb115608f25bd3f00f35a79687a7bdb77b9253c2762f39578673
7. 0x01fc212e8bcdf4707a1146e827dd5109103a93229c71a011c5f5a1c14807f15c
8. 0x68ace2b23863c07baf76c5982c8b23143d30bb4f21cd0533cf09549184b48620
9. 0xc9ba8e512a3ad74ee604f8b1759e25b1172f9f8f62ba4f8f8bcc35beb64f6fcb
10. 0x3801dc224ee69349c6fe3a8804f83a6392c51dbf385196ccaca4e1bc01124391
11. 0x85ea4bbb5113622e4aa66d1805aad88594922ba95c70691ba980547dd9edd2b2
12. 0x5be1d69fd9353c3a75685caffea8c98e8f079f5072011c82517cc5f365ba32f8
13. 0x14b83e3bc6587240f31cd033d09d131e0775b7b00aada9042597008a70399013
14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae