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Timevolt / Weekly community run attendance count (milestone shirts, volunteer credits) confirmed by a volunteer co-sign at the start
Fitness / community

Keep a dated copy of an existing run or volunteer record without confusing check-in with event credit.

Keep a dated copy of an existing run or volunteer record without confusing check-in with event credit. Keep your original source records together, then date the exact files. It does not establish physical attendance, completed distance, volunteer work, witness identity, official credit, milestone eligibility or an award.

Try a file locally

Your photos and files stay on your device, so keep them.

EXAMPLE
Weekly community run attendance count (milestone shirts, volunteer credits) confirmed by a volunteer co-sign at the start
1 Nov 2026
Authority time: 14:02 UTC · example
Bitcoin block time: 14:10 UTC · example
Last checked: 15:02 UTC · example
✓ Dated◆ Permanent
Now keep it safe: three things
  1. Keep your photos and files unedited. The receipt only matches the originals. Put them in an album such as “My records”.
  2. Save this receipt to your camera roll.

    Keep the receipt file too. The image is a handy copy; checking needs the file.

  3. 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?

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.

    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 up
    Write 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.

      1. Write it down straight away, on paper or in the box on a step.
      2. Put the date, time and place at the top, and who you spoke to.
      3. Use their words where you can; separate what you saw from what you were told.
      4. Sign or initial a paper note, photograph it and add the photo.
      5. 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.
      Weekly community run attendance count (milestone shirts, volunteer credits) confirmed by a volunteer co-sign at the start
      Weekly community run attendance count (milestone shirts, volunteer credits) confirmed by a volunteer co-sign at the start

      01 · Keep the exact files

      Keep the original files for weekly community run attendance count (milestone shirts, volunteer credits) confirmed by a volunteer co-sign at the start. Include any existing photos, signed records and source-system exports.

      Records to keep: Per-week co-signed check-in, milestone badge

      Weekly community run attendance count (milestone shirts, volunteer credits) confirmed by a volunteer co-sign at the start

      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.

      Weekly community run attendance count (milestone shirts, volunteer credits) confirmed by a volunteer co-sign at the start

      03 · Keep the evidence

      Keep the original files and complete receipt separately, alongside any existing venue, signature and workflow records.

      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.

      UK athletics · 2023

      A car ride can break race rules

      Related: race misconduct and car travel

      A runner owned up to a car ride but said they had not hidden it or meant to cheat. The panel set a year ban on events under UKA rules, British national teams and coach, official or manager roles. An appeal was allowed, but no later result was checked.

      Summarized on Oct 29, 2026

      Read the source ›
      US California · 2021

      A score dispute can survive without proving cheating

      Related: game score evidence

      A player challenged removal of game scores based on disputed video sources and witness accounts. The court let the claim continue. It did not decide whether the player cheated.

      Summarized on Oct 29, 2026

      Read the source ›

      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.

      Needs something else · parkrun events under its published barcode policy

      parkrun

      Scannable barcode and finish recording

      The official policy records participation after finishing with the barcode process, including stated manual handling of a present unscannable barcode. A start check-in or private receipt does not replace it.

      Source summary as of 2026-10-29. Check the current source and applicable local rules.

      Read the source
      Needs something else · parkrun event results and volunteer administration

      parkrun

      EMS results and volunteer processing

      Use the event's actual processing and correction route. The upload QR code is a protected credential, not a public attendance attestation.

      Source summary as of 2026-10-29. Check the current source and applicable local rules.

      Read the source
      Needs something else · parkrun volunteer roles

      parkrun

      Role-specific run and volunteer credit

      Credit depends on the actual role and event process; Tail Walker conditions do not create a rule that every volunteer or start witness earns both credits.

      Source summary as of 2026-10-29. Check the current source and applicable local rules.

      Read the source

      Other ways to do this

      Prices change. Check each provider’s site for current prices and service details.

      • parkrun official participant and results records

        Keeps the organizer's participant, result and volunteer records.

        Visit site

      • Spond

        Provides group event organization and attendance responses.

        Visit site

      • RunScene

        Provides Running-club app and tracking features.

        Visit site

      Related workflows.

      Quarterly user access review: the reviewer list, decisions and removals frozen as submittedAccess or license request, manager approval and grantQuarterly user access review: the list shown to the reviewer, each keep/remove decision and proof removals happenedHuman-in-the-loop approval before an AI agent executes a high-impact action (refund, payment instruction, production change, customer message)Who was physically present at a members' or condo board meetingHuman-made process record

      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 attendance, completed distance, volunteer work, witness identity, official credit, milestone eligibility or an award.

      It does not establish physical attendance, completed distance, volunteer work, witness identity, official credit, milestone eligibility or an award.

      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.

      Does a start check-in count as a completed run?

      No. Official participation recording follows the event's finish and barcode process.

      Source summary as of October 30, 2026. Check the current source and its scope.

      Context for this answer
      Who corrects a missing result?

      Use the event's official processing/support route; a private receipt does not amend official records.

      Source summary as of October 30, 2026. Check the current source and its scope.

      Context for this answer
      Can volunteering and running both earn credit?

      Some roles have specific conditions, including Tail Walker; do not apply that to every role.

      Source summary as of October 30, 2026. Check the current source and its scope.

      Context for this answer
      Should I publish the event upload QR code?

      No. The official guidance treats it like a password and says not to post or email it.

      Source summary as of October 30, 2026. Check the current source and its scope.

      Context for this answer
      What does dating my saved profile establish?

      Timevolt dates saved bytes only. parkrun records participation through its finish and barcode process; a saved profile cannot replace that process.

      Source summary as of October 30, 2026. Check the current source and its scope.

      Context for this answer

      The 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.