timevolt
Opening soon. Receipts and payments aren't open yet.
Timevolt / Mechanic and inspector at the aircraft for a task
Aviation

Keep a dated copy beside the required maintenance entry.

Keep a dated copy beside the required maintenance entry. Keep your original source records together, then date the exact files. It does not establish presence at an aircraft, identity, performed work, airworthiness, approved data, authorized signature or approval for return to service.

Try a file locally

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

EXAMPLE
Mechanic and inspector at the aircraft for a task
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.
      Mechanic and inspector at the aircraft for a task
      Mechanic and inspector at the aircraft for a task

      01 · Keep the exact files

      Keep the original files for mechanic and inspector at the aircraft for a task. Include any existing photos, signed records and source-system exports.

      Records to keep: Existing capture-system and sign-off records

      Mechanic and inspector at the aircraft for a task

      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.

      Mechanic and inspector at the aircraft for a task

      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

      Real cases: why the saved copy matters.

      Real cases where dated records mattered. We don’t claim a time receipt would have changed the result.

      US aviation · 2018

      A signoff must match the maintenance work

      A repair shop disputed findings that its aircraft service records were false or incomplete. The board restored a finding of false entries on purpose and took back its right to operate. One member disagreed in part.

      Summarized on Oct 29, 2026

      Read the source ›
      US aviation · 2011

      A missed reply can settle charges without trial

      A mechanic was accused of signing off gear without approval and poor inspection records. After no reply, those claims counted as admitted. The board kept a 180-day work ban without a trial testing the disputed facts.

      Summarized on Oct 29, 2026

      Read the source ›
      US aviation · 2021

      Answer charges about your maintenance entries

      A mechanic faced claims of false propeller logbook entries but did not reply on time. Those claims counted as admitted. The board kept the loss of the mechanic's certificate without a full trial on the facts.

      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 · US civil aircraft within rule scope

      FAA maintenance records

      14 CFR 43.9

      For work covered by 14 CFR 43.9, entries require the work description, completion date and specified performer/approver information and signature. The section excludes specified inspections governed elsewhere. A receipt is not an authorized return-to-service approval.

      Source summary as of 2026-10-28. Check the current source and applicable local rules.

      Read the source
      Needs something else · US civil aircraft within rule scope

      FAA owner/operator records

      14 CFR 91.417

      Owners/operators retain specified maintenance and status records and make them available as required. A fingerprint alone does not preserve the actual record.

      Source summary as of 2026-10-28. Check the current source and applicable local rules.

      Read the source
      Needs something else · Australia

      CASA aircraft-logbook guidance

      Aircraft logbook and additional maintenance records

      CASA recommends additional records and describes verification when a logbook is missing. A timestamp cannot recreate or certify missing maintenance history.

      Source summary as of 2026-10-28. 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.

      • FlightCert

        Provides maintenance scheduling, aircraft history and collaboration for engineers and pilots.

        Visit site

      • CAMP Systems

        Provides aircraft maintenance planning and tracking.

        Visit site

      • Controlled logbook with supplementary backup

        Keeps the authoritative logbook with supplementary maintenance records.

        Visit site

      Related workflows.

      Student pilot logbook entries with instructor in-person endorsement and sign-off for each lessonQuarterly 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 meeting

      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 presence at an aircraft, identity, performed work, airworthiness, approved data, authorized signature or approval for return to service.

      It does not establish presence at an aircraft, identity, performed work, airworthiness, approved data, authorized signature or approval for return to service.

      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.

      What must a US maintenance entry contain?

      For work covered by section 43.9, the entry includes the work description, completion date and specified performer and approval details.

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

      Context for this answer
      Does a co-signature replace return-to-service approval?

      No. Section 43.9 requires approval from the appropriately qualified person and specified certificate information; a second assertion is not that authority.

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

      Context for this answer
      Can I retain just the file fingerprint?

      The owner/operator record rule requires retaining the specified records themselves. A fingerprint cannot reconstruct the maintenance information.

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

      Context for this answer
      Should a logbook have supplementary records?

      CASA recommends keeping additional maintenance records outside the aircraft logbook.

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

      Context for this answer
      Can a dated backup certify a missing logbook?

      No. CASA describes verifying aircraft history and condition with appropriate maintenance organizations when records are missing.

      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.