{"uid":"cap_LrXg_whikVDyr2OeHcD7W","slug":"bitcoin-difficulty-retarget-anomaly-detector-latest-block-048d32d2","name":"Bitcoin Difficulty Retarget Anomaly Detector (Latest Block)","description":"Bitcoin difficulty retarget anomaly check on chain tip. Validation-gated detector difficulty_retarget for forensic and monitoring agents. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.","url":"https://obol-x402.fly.dev/v1/btc/anomaly/difficulty-retarget/latest","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","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wSgp1T34IUb7yUlkBZC0w","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks the current Bitcoin chain tip for difficulty retarget anomalies and returns a cryptographically signed detection result","exampleAgentPrompt":"Check the current Bitcoin chain tip right now and tell me if there's anything anomalous about the latest difficulty retarget — flag it if something looks off.","exampleUseCases":null,"resultDescription":"A signed JSON response indicating whether a difficulty retarget anomaly was detected at the current Bitcoin chain tip, including detection metadata and an Ed25519 signature verifiable via the service's public key endpoint.","failureModes":["Payment not received or invalid — 402 response blocking access","Bitcoin node unreachable or chain tip stale — data unavailable error","No recent retarget epoch available — returns no anomaly or null result","Signature verification failure if public key mismatch occurs","Rate limit or service overload on the fly.dev host"],"whenToPreferThis":"Use this endpoint when you need a fast, cryptographically verifiable check for Bitcoin difficulty retarget anomalies at the latest chain tip, especially in forensic pipelines, monitoring agents, or alerting systems that require tamper-evident signed responses. Prefer over manual node queries when you need a single signed attestation without running your own Bitcoin node.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T16:25:43.947Z","isFirstParty":false}