Receipts are the trust substrate
A receipt proves a bounded event. It does not prove the future.
Promise before result
Record what was promised before work begins. Record result and evidence after. Preserve the mismatch; it is more useful than a polished retrospective.
What a receipt can prove
A local receipt can show that a learner wrote a memo. A work receipt can show that someone submitted evidence for review. A settlement receipt can show an amount, asset, timestamp, recipient, and transaction reference. Do not upgrade one into another.
The human-help test
The useful question is whether accepted work changes project capacity or evidence. If the only measured output is token attention, you have measured a market event.
Do the work
Draft one promise/result/evidence receipt for a helper role. Include what remains unverified.
This lesson is a case-study instrument. It is not individualized financial advice and does not create an offer, security, token, entitlement, or payment obligation.