Use Cases › Legal AI
Legal research agents retrieve precedents. Without temporal verification, they cite overruled cases.
Legal research agent pulls a case from 2019. Looks perfect — same jurisdiction, similar facts. Agent includes it in the brief. Problem: case was overruled in 2024. Vector database had the embedding but no temporal validity marker. Brief goes to court with a dead citation.
Temporal validity catches what vector search misses.
Dead citations caught. Current law cited.
Vector search finds semantic matches, can't distinguish current vs overruled.
Two jurisdictions, same statute, both stored without conflict flag.
Partner asks "what sources did the agent review?" No structured record.
{
"receipt_id": "rct_7f3a...",
"assertion": "User prefers dark mode",
"status": "verified",
"confidence": 0.94,
"signature": "ed25519:a8c3f1...",
"verified_at": "2026-04-06T14:32:01Z",
"chain_position": 42
}Free: 50,000 assertions/month. No credit card. No trial expiration.