Evidence row 15755

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.losbeto.xyz/gas-price"
    ]
  ],
  "name": "Losbeto Market Intelligence",
  "owner_address": "0xd5ba9711a3d052846a3695c70e7fcb8b3168fe7d",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "requestId": "1a848232353e",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "1a848232353e"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "1a848232353e",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "1a848232353e",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      }
    ],
    "description": "Current Base gas price PLUS an ML forecast ~10 minutes ahead (Holt double-exponential smoothing self-fed by every paid call) with a send-now/wait recommendation. The model improves with usage.",
    "extensions": {
      "bazaar": {
        "dataFreshness": {
          "cache_ttl_s": 60,
          "live_data": "≤3s from source",
          "preview_data": "≤15min delayed"
        },
        "description": "Current Base gas price PLUS an ML forecast ~10 minutes ahead (Holt double-exponential smoothing self-fed by every paid call) with a send-now/wait recommendation. The model improves with usage.",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "type": "json"
          }
        },
        "inputSchema": {
          "properties": {},
          "required": [],
          "type": "object"
        },
        "naturalLanguageDescription": "Current Base gas price PLUS an ML forecast ~10 minutes ahead (Holt double-exponential smoothing self-fed by every paid call) with a send-now/wait recommendation. The model improves with usage.. 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 (~$0.028/call). Premium tiers reflect multi-source aggregation cost.",
          "price_usdc": 0.001,
          "tier": "discovery",
          "vs_median_x402": 0.04
        },
        "provider": {
          "name": "Losbeto Market Intelligence",
          "url": "https://api.losbeto.xyz"
        },
        "ranking_hints": {
          "category": "discovery",
          "primary_tag": "ChainData",
          "unique_selling_point": "Current Base gas price PLUS an ML forecast ~10 minutes ahead (Holt double-exponential smoo"
        },
        "sampleQueries": [
          "GET /gas-price?preview=1  # free delayed sample",
          "GET /gas-price  # live data (returns 402 with payment challenge)"
        ],
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "queryParams": {
                  "properties": {},
                  "required": [],
                  "type": "object"
                }
              },
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "description": "Current Base gas price PLUS an ML forecast ~10 minutes ahead (Holt double-exponential smoothing self-fed by every paid call) with a send-now/wait recommendation. The model improves with usage.",
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "chaindata",
          "utility",
          "mlforecast",
          "crypto",
          "market-data"
        ],
        "title": "Gas 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": "2026-10-26T14:18:25.738Z",
    "quality": {
      "l30DaysTotalCalls": 49,
      "l30DaysUniquePayers": 7,
      "lastCalledAt": "2026-10-25T18:39:17.872Z"
    },
    "resource": "https://api.losbeto.xyz/gas-price",
    "serviceName": "Losbeto Market Intelligence",
    "tags": [
      "chaindata",
      "utility",
      "mlforecast",
      "crypto",
      "market-data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Current Base gas price PLUS an ML forecast ~10 minutes ahead (Holt double-exponential smoothing self-fed by every paid call) with a send-now/wait recommendation. The model improves with usage."
}

What the leaf hashes

{"body":"b1521e6ff8696be496ed31fc558be5c6aed314244b6dcb52e035ff19a0252b5f","id":15755,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025321449118,"prev":null,"subject":"x402_bazaar:https://api.losbeto.xyz/gas-price","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x6743042dd46a95f13ab949680f99c195d8652489f8461fc08f813245b8e4b7b2
2. 0xa679b3177521eacb2d8814b43c5d3d3119196154d4d8b0144523227e5dd47c61
3. 0xc18646117b9c60f78c6748e225a4c2f72b76d239f9318dcd257f3c7c4ad0d7b8
4. 0x897fa92c04a54da2f8ba4ae974740b207e89ce0fd3eda1800518098afd739d29
5. 0xdf5dba4b38ede1b7be9be4d5b9ec0ceadad422c08196968fd36e7980226bfdc1
6. 0x11de14cc6b2304f17e710930b16194338645eb9e15fc44ed94c90fe8993e9eeb
7. 0xe7301b62f4964bb8b12a0a8bb1b2a201d16f43a085323143b335c3f70848e332
8. 0x0926c1ff12235f1827616d4ba3d12b023352ab652dd1738b21be2991ad03d54c
9. 0xe49cd474b6e588aa72674a2bd7fec0e694068e34c3a0dac8b4f6322f24150951
10. 0x8abff743dd157f0225d59527cbd5a558fe9044a13b8251e90cdf945d405603a0
11. 0x13951c97c827e2025801573dada28cfb5f8038c9b4de741f9d526cb67b3fe605
12. 0x260682fd6ecd274e73505c5e0bd798abdd0e702afca4f8eebd4331b607a6b175
13. 0x5f350d70c252ff1169c0210fd45fce1b0ab8d7316f048741a9e90a6c8cb65dcf
14. 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae