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LUMI X Post Timestamp Verifier
x402
LUMI X Post Timestamp Verifier is a paid API for AI agents from app.tenna.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Derives the true publication timestamp of X (Twitter) posts from their snowflake IDs, enabling verification that cited posts actually existed at a claimed time.
Price / call$0.01
Success—
StatusUnknown
How this service works
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.
Output
For each submitted X post URL, returns the derived publication timestamp extracted arithmetically from the snowflake ID embedded in the URL. Returns null for any URL that cannot be parsed (e.g. malformed, missing snowflake ID). No external API calls or model estimation are involved — the result is deterministic and exact.
Example use cases
Fact-checking cited social media evidence
“I have a research report that cites these three X posts as evidence that a claim was made before the product launch on Jan 15, 2024. Can you verify the actual timestamps of https://x.com/user1/status/1111111111111111111, https://x.com/user2/status/2222222222222222222, and https://x.com/user3/status/3333333333333333333 to confirm they predate the launch?”
Legal discovery timestamp audit
“We need to audit these X post URLs to confirm their exact publication times for a legal filing — can you extract the precise timestamps from https://x.com/witness1/status/4444444444444444444 and https://x.com/witness2/status/5555555555555555555 using the snowflake ID method?”
Misinformation timeline reconstruction
“I'm investigating whether a rumor started before or after an official announcement on June 10, 2023 — can you check the real publication timestamps of these X posts: https://x.com/account1/status/6666666666666666666 and https://x.com/account2/status/7777777777777777777?”
Technical details
Endpoint
POSThttps://app.tenna.ai/api/x402/lumi/lumi_post_timestamp_verifyWhen to prefer
Choose this endpoint when you need a deterministic, API-free, tamper-evident way to establish the publication timestamp of X posts — especially for evidentiary, legal, or journalistic use cases where model guessing is unacceptable. Prefer it over scraping or Twitter API lookups when you need zero-dependency, offline-computable verification that can be audited. It is particularly valuable when verifying that cited social media evidence predated a specific real-world event.
Side effects
- Unparseable or malformed X post URLs return null rather than an error or estimate
- URLs missing a valid snowflake status ID cannot be decoded
- Non-X (Twitter) URLs will fail to parse and return null
- Batch limit of 50 URLs exceeded returns a validation error
- Missing or incorrect 'offering' field value causes request rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urls | array | x.com/<handle>/status/<id> URLs. |
| offering | string | Offering identifier. Must be exactly 'post_timestamp_verify'. |
Tags
x402
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