• Server and domain costs.
• Security updates and integrity checks.
• Research exports renamed for clearer independent review.
• Public documentation and review tools.

A public log for claimed future-to-present signals. Anyone can submit a message, dream, feeling or event they believe came from the future. Each entry is timestamped, stored in a tamper-evident hash chain, and visible to everyone.

Log what you received — exact wording, type and any reference you want to attach. Once submitted, the entry cannot be changed or deleted without breaking the hash chain. The chain is publicly verifiable at any time.

This proves when a claim was recorded. It does not prove the claim is true.

Controls are for anyone who wants to set up a formal test of a signal — before the outcome is known.

You write a specific, testable question — for example: "Will the event in signal #4 occur before 1 Jan 2027?" — and commit it. The question is hashed and locked. Nobody can read it yet, including you once submitted.

When the outcome is known, you reveal the question. The system recomputes the hash and confirms it matches the original commitment — proving the question was written before the answer was known, not after.

This is the same mechanism Submit uses — both are tamper-evident. The difference is that Controls additionally hides the question until reveal, which prevents you from adjusting it to fit what actually happened.

RC2100 can be supported through voluntary Ko-fi donations. Donations help cover hosting, maintenance and continued development, but they never affect verification, log visibility or review outcomes.