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Timevolt / Course or curriculum
Writing

Preserve existing lesson, slide and course-export versions.

Preserve existing lesson, slide and course-export versions. Keep your original source records together, then date the exact files. It does not prove identity, origin, truth, physical state, presence, consent, authority, sending, delivery, acceptance or outcome.

Try a file locally

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

EXAMPLE
Course or curriculum
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?

    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.
        Course or curriculum
        Course or curriculum

        01 · Keep the exact files

        Keep the original files for course or curriculum. Include any existing photos, signed records and source-system exports.

        Records to keep: Lessons · Slides

        Course or curriculum

        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.

        Course or curriculum

        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.

        United States, Second Circuit · 2004

        Making course materials does not settle their ownership

        A teacher claimed personal rights in classroom tests, quizzes and assignments. The court treated those materials made for the job as the school district's property and kept the case closed.

        Summarized on Oct 29, 2026

        Read the source ›
        United States, Southern District of New York · 2005

        Course ownership and permission may need more proof

        A teacher said a course manual was made outside the job. Direct copying and brand claims went on, while other copying, contract and business-interference claims ended. The early ruling did not settle who owned it or what use was allowed.

        Summarized on Oct 29, 2026

        Read the source ›

        Related cases

        United States, Eleventh Circuit · 2018

        Review each course excerpt and its permission market

        Related: Publisher book excerpts in course materials

        A school shared book excerpts without paying publishers. The appeal court refused new evidence but removed the ruling that allowed the use and awarded the school its fees. It sent the case back for more review.

        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 federal

        US Copyright Office

        Circular30 works made for hire

        Employment duties or eligible commissioned work with required express signed agreement can change ownership. A receipt does not establish that its holder owns course materials.

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

        Read the source
        Needs something else · US federal

        US Copyright Office

        Literary-work registration routes

        Textual materials have official application categories; audiovisual works are distinguished. A local receipt does not register the course or decide rights in third-party materials.

        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.

        • Teachable

          Publishes and sell courses.

          Visit site

        • Thinkific

          Provides course authoring, delivery and learner records.

          Visit site

        • Podia

          Provides hosted courses and digital products.

          Visit site

        Related workflows.

        Original articleNovel or manuscriptPoemsScreenplayQuarterly user access review: the reviewer list, decisions and removals frozen as submittedAccess or license request, manager approval and grant

        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 prove identity, origin, truth, physical state, presence, consent, authority, sending, delivery, acceptance or outcome.

        It does not prove identity, origin, truth, physical state, presence, consent, authority, sending, delivery, acceptance or outcome.

        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 creating slides mean I own every right?

        Not necessarily. The Office explains employment and qualifying commissioned-work exceptions.

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

        Context for this answer
        Does a receipt replace copyright registration?

        No. The Office distinguishes automatic protection from its separate registration process.

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

        Context for this answer
        Can course text use a literary-work route?

        Eligible explanatory text can fall in that category; the Office distinguishes audiovisual works.

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

        Context for this answer
        Does recording a file permit copying others' readings?

        No. The course-reading appeal required a separate, individual review of the copied excerpts.

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

        Context for this answer
        Are all teacher materials owned by the school?

        No universal result follows. The manual decision left independent development and employment scope disputed.

        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.