Verifiable proof of presence.
Issue tamper-evident receipts that certify a person was present at a place, time, and activity, and can be verified by anyone. Not an event platform but a simple receipt layer that creates portable, third-party-verifiable proof people can use later.
What is a presence receipt?
A presence receipt is a signed, portable record that shows: Who was present, Where and when, Under what conditions, Issued by whom, and whether it is still valid. Each receipt is: Cryptographically signed, Tamper-evident, Publicly or privately verifiable, Revocable if issued in error and auditable.
It works like a receipt — but for participation, not money.
Used Attestly to verify and certify activity time including volunteer hours, training, site visits, education, regulated programs and any work.
Receipts people can use later.
Organizations use Attestly to issue verifiable proof of participation — for volunteer hours, training, site visits, and regulated programs. Individuals can save and share receipts for applications, reports, or compliance. Verification is instant, and no account is required.
Blog
Understanding presence receipts, verification, and trust.