Sample record · Life sciences · clinical trials

An investigator overrules an AI pre-screen

An AI pre-screen marks a trial candidate likely eligible. The site investigator overrules it: a prohibited medication was stopped nine days earlier and the protocol requires a 14-day washout.

Fictional scenario, real seals. No company, person or transaction here is real. Each record was sealed on Verdict’s public sandbox and logged on Sigstore Rekor, a public log Verdict does not run. This chain was sealed in one sitting, so its log times are seconds apart; in a live deployment each step is logged when it happens.
What the log time settles in a real case

That the investigator's decision came before the consent visit, and on which version of the protocol.

  1. Step 1 of 2 · AI pre-screen: likely eligibleAwaiting human review

    AI marks candidate 0381 likely eligible: meets age, diagnosis and lab criteria; no exclusion criteria detected. Recommends scheduling the consent visit.

    Logged on Rekor
    2026-10-14 09:04:58 UTC
    Log index
    3249798507
    Record id
    ser_c33c33a6e2206bdfb93085cefeed12aa
    Verify in your browser →Open the Rekor entry ↗Download the record
  2. Step 2 of 2 · Investigator overrulesHuman approved

    Investigator (fictional) overrules the AI: the candidate stopped a prohibited medication 9 days ago and protocol v3.1 requires a 14-day washout. Candidate marked not eligible now, re-screen allowed after day 14. Reason recorded.

    Logged on Rekor
    2026-10-14 09:04:58 UTC
    Log index
    3249798560
    Record id
    ser_f0db48f81fc77a6bcb5e5cfb0fc0ed9b
    Verify in your browser →Open the Rekor entry ↗Download the record

How to check the time yourself. Open the Rekor entry and compare its logged hash with the SHA-256 of the record’s commitment, which the verifier shows. If they match, the entry’s integrated time is the earliest moment this content is proven to have existed. Log times above were read from Rekor on 2026-10-15.

A record proves what it says has not changed since it was logged. It does not prove the event happened as described, or who made the record. What Verdict proves, and what it doesn’t →

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