0 items
How?
Add the exact original files for this part of the record. Keep them unchanged; a different export or edit has a different fingerprint.
Add link and screenshots
The link is recorded, not fetched or verified.
Events / community
Keep the organizer’s attendance claim without buying Bitcoin.
Event attendance badge — keep the organizer’s attendance claim and the records used to check it. A time receipt dates the file; it does not establish presence or identity.
Your photos and files stay on your device, so keep them.
EXAMPLE
Attendance badge for a conference, meetup or festival, claimed only by scanning a rotating on-site code, with no crypto wallet needed
1 Nov 2026
Authority time: 14:02 UTC · example
Bitcoin block time: 14:10 UTC · example
Last checked: 15:02 UTC · example
Bitcoin block time: 14:10 UTC · example
Last checked: 15:02 UTC · example
✓ Dated◆ Permanent
Now keep it safe: three things
- Keep your photos and files unedited. The receipt only matches the originals. Put them in an album such as “My records”.
- Save this receipt to your camera roll.
Keep the receipt file too. The image is a handy copy; checking needs the file.
- Email it to yourself.Email it to myself
Your mail app opens a draft. Attach your receipt image and receipt file. Don’t attach your photos or documents. Timevolt does not send it or know whether it was sent.
Your record, one step at a time.
Your photos and files stay on your device, so keep them.
Local preview: files are fingerprinted here. Notes and progress stay in this browser. Keep downloaded copies; browser storage is not a backup.
0 items
How?
Record the date, time, place and who you spoke to. New notes are saved separately rather than editing an old note.
How to keep notes that hold upWrite it down
By making a receipt you agree to the Terms and Privacy Policy. The Bitcoin record is permanent.
By making a receipt you agree to the Terms and Privacy Policy. The Bitcoin record is permanent.
How to keep notes that hold up
Write notes as soon as you can. Keep the original account rather than replacing it later; the venue decides what weight it gets.
- Write it down straight away, on paper or in the box on a step.
- Put the date, time and place at the top, and who you spoke to.
- Use their words where you can; separate what you saw from what you were told.
- Sign or initial a paper note, photograph it and add the photo.
- Never edit an old note. Add a new dated entry when something changes. A device save time is not independent time evidence or proof of event order.
Attendance badge for a conference, meetup or festival, claimed only by scanning a rotating on-site code, with no crypto wallet needed
Attendance badge for a conference, meetup or festival, claimed only by scanning a rotating on-site code, with no crypto wallet needed
01 · Keep the exact files
An attendee keeps the organizer’s badge or claim file. An organizer keeps its own attendance and sign-off records.
Records to keep: Rotating-QR scan during the event window, device attestation, badge card
Attendance badge for a conference, meetup or festival, claimed only by scanning a rotating on-site code, with no crypto wallet needed
02 · Date the file’s code
Your device fingerprints the selected file or manifest. Dated follows an independent timestamp; Permanent follows Bitcoin anchoring.
An independent time, tied to the exact bytes.
Attendance badge for a conference, meetup or festival, claimed only by scanning a rotating on-site code, with no crypto wallet needed
03 · Keep the evidence
Keep the exact claim and receipt without requiring a Bitcoin wallet. Ask the credit-granting body what it accepts.
Keep the originals too. A changed or compressed copy has a different fingerprint.
Try a file. It stays here.
Make a test receipt on this device.
By making a receipt you agree to the Terms and Privacy Policy. The Bitcoin record is permanent.
or drop a file here
Related cases
Related cases from nearby fields. We don’t claim a time receipt would have changed the result.
What courts, schemes and regulators say.
Positions below refer to the cited rule or record type, not endorsement of Timevolt. This service is not represented as an eIDAS qualified timestamp provider. A non-qualified timestamp does not receive the qualified timestamp presumption.
eIDAS Regulation (EU) 910/2014, Art. 41
Electronic or nonqualified form alone is not a reason to deny a timestamp legal effect or admissibility. Other evidence requirements still apply. Article 41(2) addresses the qualified-timestamp presumption, and Article 42 its requirements; provider status alone is insufficient.
This describes the statutory evidence rule, not Timevolt qualification or a guarantee of admission. No claim about cross-border recognition is made here.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceCLE attendance auditing (SC and KS discipline opinions)
Credit depends on the sponsor's attendance record such as a signed roll; no guidance found on timestamped digital proof.
The opinions show records matter, but do not address timestamps. Check each state's CLE board.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceGraduate funding form for conference attendance
Lists agenda or program, a photo of the student, and a photo of the name tag as acceptable proof.
Timestamped badge is not listed; ask the office whether it would accept it as supplementary.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceOther ways to do this
Prices change. Check each provider’s site for current prices and service details.
Related workflows.
Proves / Doesn’t prove
Proves
A completed time receipt shows that the exact selected file existed by the independently witnessed time. You can check whether a later copy has the same bytes. It does not establish creation time, authorship, identity, event order, location or the truth of the contents.
Doesn’t prove
It does not establish physical presence, identity, who held the phone or whether a venue code was relayed. Organizer checks are separate evidence, not a guarantee.
A rotating code can be relayed. Neither a code nor a file receipt establishes physical presence, identity or entitlement to credit.
These are the bounds of a completed proof. The local tester does not establish any time. The chosen court, scheme or regulator decides what to accept.
Questions, answered plainly.
Your file stays on your device. During normal receipt creation, your device sends a randomized code made from its fingerprint, plus encrypted recovery data. It doesn't send the plain fingerprint or the random value that opens the code. Keep the original file and the complete receipt for checking. Privacy Policy.
Do I need a crypto wallet to claim the badge?
You do not need Bitcoin to keep the organizer’s existing attendance record. This site does not issue an attendance badge or confirm a visit.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerWhy does the code keep changing?
A rotating code can expire, but a live code can still be relayed to someone elsewhere. It is not proof of presence.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDoes the time receipt prove I was at the event?
A completed time receipt shows that the exact selected file existed by the independently witnessed time. You can check whether a later copy has the same bytes. It does not establish creation time, authorship, identity, event order, location or the truth of the contents.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDo you see my files?
Your file stays on your device. During normal receipt creation, your device sends a randomized code made from its fingerprint, plus encrypted recovery data. It doesn't send the plain fingerprint or the random value that opens the code. Keep the original file and the complete receipt for checking.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerWhat do Dated and Permanent mean?
Dated requires independently validated timestamp evidence. Permanent requires verified Bitcoin anchoring evidence with the required confirmations. The local tester issues neither status.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerWill my CPD or CLE body accept this?
Unknown. Bodies decide for themselves, and most rely on the sponsor's attendance record. Ask before relying on it; it is best used as backup.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerWhat if the organizer's website disappears?
The receipt and your files are yours and can be checked without the organizer. POAP's closure to new issuers shows platforms can change.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerWhat does it cost?
See the Pricing page for current US-dollar plans and allowances. Fast is paused. Purchases open when receipts open.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerThe file tester runs on your device. It does not issue a timestamp or take a payment.
Keep the records you already have.
Keep your original files and any existing official records while the receipt service is being prepared.