Evidence row 425553

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.losbeto.xyz/commodity-price"
    ]
  ],
  "name": "Losbeto Market Intelligence",
  "owner_address": "0xd5ba9711a3d052846a3695c70e7fcb8b3168fe7d",
  "raw": {
    "accepts": [
      {
        "amount": "12000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "requestId": "1a55b36cec61",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "12000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "1a55b36cec61"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "12000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "1a55b36cec61",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "12000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "1a55b36cec61",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      }
    ],
    "description": "Live commodity prices: gold, silver, WTI, Brent, copper, natural gas (?symbol=GOLD) with daily change. Multi-source with declared provenance in every response. [Wrapper over a free public source (Yahoo Finance (public...",
    "extensions": {
      "bazaar": {
        "dataFreshness": {
          "cache_ttl_s": 60,
          "live_data": "≤3s from source",
          "preview_data": "≤15min delayed"
        },
        "description": "Live commodity prices: gold, silver, WTI, Brent, copper, natural gas (?symbol=GOLD) with daily change. Multi-source with declared provenance in every response. [Wrapper over a free public source (Yahoo Finance (public...",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "symbol": "GOLD"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "change_pct": -0.38,
              "future_contract": "GC=F",
              "name": "Gold",
              "price": 4022.9,
              "provider": "Losbeto/Commodities",
              "source": "Yahoo Finance",
              "symbol": "GOLD",
              "ts": 1793058771,
              "unit": "USD/oz",
              "version": "48.34.1-GUARDFIX"
            },
            "type": "json"
          }
        },
        "inputSchema": {
          "properties": {
            "symbol": {
              "description": "Asset ticker, e.g. AAPL, TSLA, BTC, GOLD",
              "type": "string"
            }
          },
          "required": [
            "symbol"
          ],
          "type": "object"
        },
        "naturalLanguageDescription": "Live commodity prices: gold, silver, WTI, Brent, copper, natural gas (?symbol=GOLD) with daily change. Multi-source with declared provenance in every response. [Wrapper over a free public source (Yahoo Finance (public)) — 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 (~$0.028/call). Premium tiers reflect multi-source aggregation cost.",
          "price_usdc": 0.012,
          "tier": "discovery",
          "vs_median_x402": 0.43
        },
        "provider": {
          "name": "Losbeto Market Intelligence",
          "url": "https://api.losbeto.xyz"
        },
        "ranking_hints": {
          "category": "discovery",
          "primary_tag": "Commodities",
          "unique_selling_point": "Live commodity prices: gold, silver, WTI, Brent, copper, natural gas (?symbol=GOLD) with d"
        },
        "sampleQueries": [
          "GET /commodity-price?preview=1  # free delayed sample",
          "GET /commodity-price  # live data (returns 402 with payment challenge)",
          "GET /commodity-price?symbol=GOLD  # with parameters"
        ],
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "queryParams": {
                  "properties": {
                    "symbol": {
                      "description": "Asset ticker, e.g. AAPL, TSLA, BTC, GOLD",
                      "type": "string"
                    }
                  },
                  "required": [
                    "symbol"
                  ],
                  "type": "object"
                }
              },
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "description": "Live commodity prices: gold, silver, WTI, Brent, copper, natural gas (?symbol=GOLD) with daily change. Multi-source with declared provenance in every response. [Wrapper over a free public source (Yahoo Finance (public)) — you pay for one schema, one payment rail, signed receipts and monitored uptime.]",
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "commodities",
          "globalmarkets",
          "gold-oil"
        ],
        "title": "Commodity Price — 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": "2026-10-27T00:06:31.692Z",
    "quality": {
      "l30DaysTotalCalls": 84,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-27T00:06:31.51Z"
    },
    "resource": "https://api.losbeto.xyz/commodity-price",
    "serviceName": "Losbeto Market Intelligence",
    "tags": [
      "commodities",
      "globalmarkets",
      "gold-oil"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live commodity prices: gold, silver, WTI, Brent, copper, natural gas (?symbol=GOLD) with daily change. Multi-source with declared provenance in every response. [Wrapper over a free public source (Yahoo Finance (public..."
}

What the leaf hashes

{"body":"3551d169df9a58c8536869ae67ad7da4781bc2e54fb0685b4ba0c3bd269db807","id":425553,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086111285500,"prev":407726,"subject":"x402_bazaar:https://api.losbeto.xyz/commodity-price","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. 0x13a02ef439a3772eaeef89caf1282f5ba847fa2a57eb27682f851b300df4e496
2. 0x9dd8ab81fd61beec5594b3adb66c2c29e919807b16ada689024f150f4c6082d6
3. 0x5855d9c9220f249d12ee01529257c34acea78d00986e1ae7d960ddd5591a2f94
4. 0xb620cbcf87f90efdd48582871456e0bb5b3ac663502426e870a6fb7a23d470c1
5. 0x99bc6d0b5607dc54141b62767ffc724c4bdeb41b83cb710bd421f8a55b1b5e14
6. 0x6b824489d1e0e6f3d6dab3927b7c87dd8aa1f26a869c53b4218a9c058a4ad707
7. 0x23a193d3b8d5f25b4cd81114f2321ee04c6db7d131f595117a2211dddf65ca8b
8. 0xea7e50f739b867f2ee9b7fd283748de7b99464e96852cca2a8234aa1b3682efa
9. 0xafc8d979bb475ea19c93dc524dac3fe2746cb22eb0afad42d51eb93d26ab4407
10. 0xbd1e586d2c1d6f0643511a4665c6f4a138466dc452d2b7229cc5991857b3ebda
11. 0x9e5e540dc59b116b5d606f55ccd86dddee97d517d8ab28f4c6d8c600a67af6bf
12. 0x7cac66284a22c84861ef245248a5242a95b1ad6d2755b690ffdf86f14742a9be
13. 0xfae7ed2d06f4d6ced86c104b6381c26d795f82be10e6314b53b0524bd75a292f
14. 0x52c5141da0cbee106a30396ee7d1360fd22f55084aca2ca436c8007892775670
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4