Evidence row 278665

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.losbeto.xyz/chain-block"
    ]
  ],
  "name": "Losbeto Market Intelligence",
  "owner_address": "0xd5ba9711a3d052846a3695c70e7fcb8b3168fe7d",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "requestId": "9352e2da8198",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "requestId": "9352e2da8198"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "GEhr9HCFTRDjanMg435frSgCVwVZYpNoPrEkmNBnFHFE",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "31566704",
        "extra": {
          "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA",
          "requestId": "9352e2da8198",
          "tag": "x402-global-challenge"
        },
        "maxTimeoutSeconds": 300,
        "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
        "payTo": "MRVA6OABPQJNJ2WFUHFY57FMJXHBV37IU665MXRJX4JYBIWGACP3LSDUF4",
        "scheme": "exact"
      },
      {
        "amount": "1000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "requestId": "9352e2da8198",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xd5Ba9711a3D052846a3695C70e7fcb8b3168FE7d",
        "scheme": "exact"
      }
    ],
    "description": "Current Base block number, timestamp, age and gas usage — the cheapest real chain read on this node. The 'hello world' of live chain data.",
    "extensions": {
      "bazaar": {
        "dataFreshness": {
          "cache_ttl_s": 60,
          "live_data": "≤3s from source",
          "preview_data": "≤15min delayed"
        },
        "description": "Current Base block number, timestamp, age and gas usage — the cheapest real chain read on this node. The 'hello world' of live chain data.",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "type": "json"
          }
        },
        "inputSchema": {
          "properties": {},
          "required": [],
          "type": "object"
        },
        "naturalLanguageDescription": "Current Base block number, timestamp, age and gas usage — the cheapest real chain read on this node. The 'hello world' of live chain data.. 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 (~$0.028/call). Premium tiers reflect multi-source aggregation cost.",
          "price_usdc": 0.001,
          "tier": "discovery",
          "vs_median_x402": 0.04
        },
        "provider": {
          "name": "Losbeto Market Intelligence",
          "url": "https://api.losbeto.xyz"
        },
        "ranking_hints": {
          "category": "discovery",
          "primary_tag": "ChainData",
          "unique_selling_point": "Current Base block number, timestamp, age and gas usage — the cheapest real chain read on "
        },
        "sampleQueries": [
          "GET /chain-block?preview=1  # free delayed sample",
          "GET /chain-block  # live data (returns 402 with payment challenge)"
        ],
        "schema": {
          "$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 block number, timestamp, age and gas usage — the cheapest real chain read on this node. The 'hello world' of live chain data.",
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "chaindata",
          "utility",
          "zeroupstream",
          "crypto",
          "market-data"
        ],
        "title": "Chain Block — 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": "2026-10-26T15:21:59.294Z",
    "quality": {
      "l30DaysTotalCalls": 55,
      "l30DaysUniquePayers": 9,
      "lastCalledAt": "2026-10-26T15:21:59.057Z"
    },
    "resource": "https://api.losbeto.xyz/chain-block",
    "serviceName": "Losbeto Market Intelligence",
    "tags": [
      "chaindata",
      "utility",
      "zeroupstream",
      "crypto",
      "market-data"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Current Base block number, timestamp, age and gas usage — the cheapest real chain read on this node. The 'hello world' of live chain data."
}

What the leaf hashes

{"body":"61f56582ba7d2011452af3e6638a2b8b084f334ae84b287dc656cbbe559ceaa5","id":278665,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042078442579,"prev":236172,"subject":"x402_bazaar:https://api.losbeto.xyz/chain-block","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.