Evidence row 407754

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.losbeto.xyz/br-brief"
    ]
  ],
  "name": "Losbeto Market Intelligence",
  "owner_address": "0xd5ba9711a3d052846a3695c70e7fcb8b3168fe7d",
  "raw": {
    "accepts": [
      {
        "amount": "400000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "requestId": "a12aed076ae8",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "400000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "a12aed076ae8"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "400000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "a12aed076ae8",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "400000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "a12aed076ae8",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      }
    ],
    "description": "Brazil in global context, written for an international desk: BCB macro, the real interest rate, Ibovespa, B3 blue chips (PETR4, VALE3, ITUB4) and how the dollar and commodities are feeding in — closed by an AI strateg...",
    "extensions": {
      "bazaar": {
        "dataFreshness": {
          "cache_ttl_s": 60,
          "live_data": "≤3s from source",
          "preview_data": "≤15min delayed"
        },
        "description": "Brazil in global context, written for an international desk: BCB macro, the real interest rate, Ibovespa, B3 blue chips (PETR4, VALE3, ITUB4) and how the dollar and commodities are feeding in — closed by an AI strateg...",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "format": "json"
            },
            "type": "http"
          },
          "output": {
            "type": "json"
          }
        },
        "inputSchema": {
          "properties": {
            "format": {
              "description": "Response format (json)",
              "type": "string"
            }
          },
          "required": [],
          "type": "object"
        },
        "naturalLanguageDescription": "Brazil in global context, written for an international desk: BCB macro, the real interest rate, Ibovespa, B3 blue chips (PETR4, VALE3, ITUB4) and how the dollar and commodities are feeding in — closed by an AI strategist synthesis. The only Brazil-focused product on x402.. Tier: flagship. 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 (~$0.028/call). Premium tiers reflect multi-source aggregation cost.",
          "price_usdc": 0.4,
          "tier": "flagship",
          "vs_median_x402": 14.29
        },
        "provider": {
          "name": "Losbeto Market Intelligence",
          "url": "https://api.losbeto.xyz"
        },
        "ranking_hints": {
          "category": "flagship",
          "primary_tag": "Brazil",
          "unique_selling_point": "Brazil in global context, written for an international desk: BCB macro, the real interest "
        },
        "sampleQueries": [
          "GET /br-brief?preview=1  # free delayed sample",
          "GET /br-brief  # live data (returns 402 with payment challenge)",
          "GET /br-brief?format=json  # with parameters"
        ],
        "schema": {
          "$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": "Brazil in global context, written for an international desk: BCB macro, the real interest rate, Ibovespa, B3 blue chips (PETR4, VALE3, ITUB4) and how the dollar and commodities are feeding in — closed by an AI strategist synthesis. The only Brazil-focused product on x402.",
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "brazil",
          "premium",
          "macro",
          "crypto",
          "market-data"
        ],
        "title": "Br Brief — 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": "2026-10-26T23:53:34.699Z",
    "quality": {
      "l30DaysTotalCalls": 70,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T23:53:34.505Z"
    },
    "resource": "https://api.losbeto.xyz/br-brief",
    "serviceName": "Losbeto Market Intelligence",
    "tags": [
      "brazil",
      "premium",
      "macro",
      "crypto",
      "market-data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Brazil in global context, written for an international desk: BCB macro, the real interest rate, Ibovespa, B3 blue chips (PETR4, VALE3, ITUB4) and how the dollar and commodities are feeding in — closed by an AI strateg..."
}

What the leaf hashes

{"body":"650762378dd146b1ff5269d8989657b977a8e5fb7eea9e9304443f38cbb6f8e6","id":407754,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793080251653078,"prev":278698,"subject":"x402_bazaar:https://api.losbeto.xyz/br-brief","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. 0x0af6d7b24fa30c640904a2dddee8c6b46bb67b21fd3ea8b83ae48fe8f6fe02d1
2. 0x6d392f88f066001344f4853a034a08357c0b036c81f0dd7edf4ad2bf01e00cad
3. 0xb892ee777558c83a0b26ab549cc558349012faa2c79bb113faee402cd39ee8d0
4. 0xbcc49f6b65067ac20dad9936d9a0e29d9a3131d188acfd8b2556de20ec7dc7fa
5. 0x8214e9c65c5baa9bb4da733ce854ac94bcb674a5c25b16d421374ae8506956cd
6. 0x713039d0b3cb9d7599cb29c9d94697b9636fbd48c028c4e1f413912fb72c5264
7. 0x9f92c89df4f25afbc52184dd8e4d62f579a53e04247aeecad7e22645294cf8a1
8. 0xd5e0d95b8bf90d0389dd2c0bcb0bde36e463229a0dbbb4098b552e732cac3ac1
9. 0x0b71566d473211a0e78fa32d572bb046d75715d9d3e9faf6aaaf5336042215c5
10. 0xb6a4450b4a9940eedd2b07861f4e3bb98cbc22cfb025b648245e62a4512ea7b3
11. 0xab9a818db8b8604daa1d300b5336a7ecdc718ee9de04e347884c3c2ff6e455d3
12. 0x7189e38499a0d36b6f3d244260e4b1d8d20ec79407f4be030531131834122360
13. 0x74ffd6144e8464591ea30392b981f197426cfd361178829fb8a66915e2f727b0
14. 0x3e0ec8a2a8a954695a9b53a4a48a7656d7e3fd6a8795c73b49e2ef05b201ec3f
15. 0x2cf27e8a181d60d0dd27c186c2eddfcbb4e8fa71cf66feeb55a4d730e15ee8c4
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4