{"uid":"cap_fdwzqSt02ynqTgk2fXTfT","slug":"polygon-bridge-timeline-reconstructor-ca9fb1e5","name":"Polygon Bridge Timeline Reconstructor","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/polygon_bridge_timeline_reconstruct/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"request_json":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["Timestamps and event authenticity are caller supplied."],"service_id":"polygon_bridge_timeline_reconstruct","analysis_json":"{\"ambiguous_order\":false,\"completion_claimed\":false,\"count\":1,\"events\":[{\"_source_index\":0,\"address\":\"0x0000000000000000000000000000000000000001\",\"block_number\":1,\"chain\":\"137\",\"log_index\":0,\"transaction_index\":0}],\"missing_stages\":[\"lock\",\"mint\",\"burn\",\"checkpoint\",\"exit\"],\"network_context\":{\"accepted_chain_ids\":[\"137\",\"80002\"],\"bridge_model\":\"root-child state sync plus checkpoint evidence\",\"completion_policy\":\"never inferred without supplied evidence\",\"protocol_family\":\"Polygon PoS\"}}","evidence_scope":"caller_supplied_data","analyzed_network":"polygon"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"polygon_bridge_timeline_reconstruct","executionId":"example-execution","startedAtMs":0,"amountAtomic":"25000","resultSha256":"3a834c73e0261dbc6609aeb957e56b0eca593c914efb514f1f2e234609096017","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.025","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":"$0.025/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.025","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.025","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-UlJzYPPcIcmNgQ1cj2LV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.025","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes and reconstructs the event timeline of Polygon PoS bridge transactions from caller-supplied event data, identifying missing stages and ambiguous ordering.","exampleAgentPrompt":"I have a list of Polygon PoS bridge events including block numbers, chain IDs, log indices, and addresses — can you reconstruct the timeline, tell me which stages like lock, mint, burn, checkpoint, or exit are missing, and flag any ambiguous ordering?","exampleUseCases":[{"title":"Stuck bridge transfer diagnosis","prompt":"My tokens seem stuck crossing from Ethereum to Polygon — I have the raw event logs with block numbers and transaction indices. Can you reconstruct the bridge timeline and tell me which stages are missing so I know where it got stuck?"},{"title":"Bridge audit for DeFi protocol","prompt":"I need to audit a batch of Polygon bridge transactions for our protocol — here are the raw events with chain IDs 137, block numbers, and log indices. Reconstruct the event sequence and flag any that have ambiguous ordering or incomplete stage coverage."},{"title":"Verify cross-chain transfer completion","prompt":"Can you check whether this Polygon PoS bridge transfer actually completed? I'll give you all the on-chain events I collected — addresses, block numbers, and log indices — and I want to know if the checkpoint and exit stages are present or if completion was never established."}],"resultDescription":"Returns a JSON analysis containing an ordered list of bridge events, a list of missing stages (from lock, mint, burn, checkpoint, exit), a flag indicating whether event ordering is ambiguous, a completion_claimed boolean, a count of events processed, and network context including accepted chain IDs, bridge model description, and completion policy. Also returns the evidence scope (always 'caller_supplied_data') and analyzed network ('polygon').","failureModes":["Caller supplies incomplete or malformed event JSON — analysis proceeds but missing_stages list will be extensive","Timestamps and event authenticity are not verified — the service explicitly warns these are caller-supplied and unvalidated","Unsupported chain IDs may result in incomplete network context or rejection","Malformed request_json string (not valid JSON within the string) may cause a parsing error","Completion is never inferred without explicit supplied evidence — agents should not assume completion even if many stages are present"],"whenToPreferThis":"Choose this endpoint when you have raw Polygon PoS bridge event data and need to understand the sequential lifecycle of a bridge transaction — specifically to identify missing stages, detect ordering ambiguity, or audit whether a transfer reached completion. Prefer this over generic blockchain explorers when you need structured stage-by-stage analysis of the lock→mint→burn→checkpoint→exit flow specific to the Polygon PoS bridge model. Note that this endpoint operates purely on caller-supplied data and does not fetch on-chain data itself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:03:48.873Z","isFirstParty":false}