{"uid":"cap_Je_ApaPV8-6R8WAw8kH39","slug":"lumi-x-post-timestamp-verification-dd3eaa12","name":"LUMI X Post Timestamp Verification","description":"X Post Timestamp Verification. Verify when X posts were actually published. Timestamps are derived arithmetically from the snowflake id in each URL — no external API call, no model guessing. Unparseable URLs return null rather than an estimate. Useful for auditing whether cited evidence existed at a claimed time.","url":"https://app.tenna.ai/api/x402/lumi/post_timestamp_verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"urls":{"type":"array","items":{"type":"string"},"maxItems":50,"minItems":1,"description":"x.com/<handle>/status/<id> URLs."},"offering":{"type":"string","const":"post_timestamp_verify","description":"Offering identifier. Must be exactly 'post_timestamp_verify'."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.01/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_G1puBQidrJnvyiLObirCM","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":"Derives the exact publication timestamp of X (Twitter) posts arithmetically from their snowflake IDs, without external API calls or model inference.","exampleAgentPrompt":"Can you verify the exact timestamps for these X posts and confirm whether they were published before March 1st 2024? Here are the URLs: https://x.com/user1/status/1234567890123456789 and https://x.com/user2/status/9876543210987654321 — use the post_timestamp_verify offering.","exampleUseCases":[{"title":"Fact-checking cited tweet evidence","prompt":"I need to verify whether these three tweets were actually published before the product launch on January 10 2024 — can you check their real timestamps? URLs: https://x.com/analyst1/status/1744000000000000000, https://x.com/analyst2/status/1744100000000000000, https://x.com/analyst3/status/1744200000000000000"},{"title":"Legal discovery timestamp audit","prompt":"We're auditing social media evidence for a legal case — can you verify the exact publication timestamps for these X posts and flag any that don't match the dates claimed in the filing? Here are the URLs: https://x.com/witness/status/1700000000000000000 and https://x.com/claimant/status/1710000000000000000"},{"title":"Misinformation timeline reconstruction","prompt":"I'm investigating a misinformation campaign and need to know the precise chronological order these tweets were posted — can you decode the real timestamps from these five X URLs? https://x.com/acct1/status/1720000000000000000, https://x.com/acct2/status/1721000000000000000, https://x.com/acct3/status/1722000000000000000, https://x.com/acct4/status/1723000000000000000, https://x.com/acct5/status/1724000000000000000"}],"resultDescription":"For each submitted X post URL, the endpoint returns the arithmetically derived publication timestamp extracted from the snowflake ID embedded in the URL. Returns null for any URL that cannot be parsed rather than guessing. No external API is called — the result is deterministic and based purely on the snowflake ID arithmetic.","failureModes":["Unparseable or malformed X post URLs return null rather than an error or estimate","Non-x.com URLs will fail to parse and return null","Batch exceeds 50 URLs — request rejected","Incorrect offering identifier causes rejection","URLs without a valid snowflake status ID return null"],"whenToPreferThis":"Choose this endpoint when you need deterministic, auditable proof of when an X post was published — especially for legal, journalistic, or compliance use cases where model guessing is unacceptable. Prefer this over scraping Twitter's API (which requires auth and may rate-limit) or asking an LLM to infer dates (which can hallucinate). Ideal when verifying whether cited social media evidence predates a specific event, and when you need batch verification of up to 50 posts in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:35:47.845Z","isFirstParty":false,"canonicalSlug":"lumi-x-post-timestamp-verification-dd3eaa12"}