{"uid":"cap_HyUyFmw5GVUZNDw6hSzu8","slug":"cloudmaxi0x-candle-proof-verification-a92564b0","name":"CloudMaxi0x Candle Proof Verification","description":"Deterministic, verifiable crypto market data and honest backtest audits. Use GET /v1/data/ohlcv for exact OHLCV over a half-open range with a SHA-256 Merkle manifest - only closed candles are returned, exchange decimal strings are preserved byte for byte, so the same query always yields the same root. Use GET /v1/data/proof to verify one candle against a root you already hold. Use POST /v1/validate/trades to find out whether a list of trade returns can be distinguished from luck, and POST /v1/validate/filter to test a trade filter against a permutation null. GET /, /v1/schema and /v1/data/sources are free.","url":"https://cloudmaxi0x.com/v1/data/proof","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["symbol","interval","start_ms","end_ms","open_time"],"properties":{"end_ms":{"type":"integer"},"symbol":{"type":"string"},"interval":{"type":"string"},"start_ms":{"type":"integer"},"open_time":{"type":"integer","description":"the candle to prove, within the range"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ldl9GMDzGXcFVOm82g7Zd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies a single OHLCV candle against a previously obtained SHA-256 Merkle root, confirming the candle's authenticity and inclusion in a deterministic dataset","exampleAgentPrompt":"Can you verify that the BTC/USDT 1-hour candle with open_time 1700000000000 is genuinely included in the Merkle root I got from my earlier OHLCV query covering the range from 1699996800000 to 1700003600000?","exampleUseCases":[{"title":"Backtest data integrity audit","prompt":"I ran a backtest on ETH/USDT 15-minute candles from 1698768000000 to 1698854400000 and got a Merkle root — can you prove that the candle at open_time 1698771600000 is legitimately part of that dataset?"},{"title":"Regulatory compliance candle attestation","prompt":"For our compliance report, I need a cryptographic proof that the BTC/USDT 1-day candle with open_time 1697760000000 within the range 1697760000000 to 1697846400000 matches the root we recorded last month."},{"title":"Third-party data verification","prompt":"A counterparty sent me OHLCV data for SOL/USDT at the 4-hour interval — can you verify that the candle at open_time 1699920000000 in the range 1699920000000 to 1699948800000 is legitimate and matches the Merkle root they also provided?"}],"resultDescription":"Returns a Merkle inclusion proof demonstrating whether the specified candle (identified by open_time) is authentically part of the dataset for the given symbol, interval, and time range. The proof allows independent verification against the SHA-256 Merkle root without re-fetching the full OHLCV dataset.","failureModes":["Candle open_time falls outside the specified start_ms/end_ms range — returns error indicating candle not in range","Symbol or interval not supported — returns 404 or validation error","Malformed timestamp integers — returns 400 bad request","open_time points to an unclosed candle — not included in proof","Network or payment failure — 402 if payment not provided, 503 on service unavailability"],"whenToPreferThis":"Use this endpoint when you already hold a Merkle root from a prior OHLCV query and need to cryptographically verify a single candle without re-downloading the full dataset. Ideal for audit trails, compliance attestations, and third-party data validation where tamper-evidence is required. Prefer this over re-fetching full OHLCV data when you only need to prove one specific candle's authenticity efficiently and cheaply.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:32:39.583Z","isFirstParty":false}