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Timevolt / Proof or result priority
Mathematics / academia

Circulate the proof with a dated copy behind it.

Circulate the proof with a dated copy behind it. Save the exact LaTeX source and PDF before sending or publishing a version.

Try a file locally

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

EXAMPLE
Proof or result priority
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.
      Proof or result priority
      Proof or result priority

      01 · Keep the exact files

      Save the exact LaTeX source and PDF before sending or publishing a version.

      Records to keep: LaTeX source and PDF of a proof or result before circulation or arXiv

      Proof or result priority

      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.

      Proof or result priority

      03 · Keep the evidence

      Keep the submission and publication record alongside the exact source files.

      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 dated versions matter.

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

      England / Continental Europe · 1712-1713

      A one-sided review can distort priority claims

      Two scholars fought over who first found calculus. A committee under one rival's leadership backed him without asking the other for his account. Later accounts credit both with finding it alone: one earlier, the other first to publish.

      This is a secondary historical account of a society inquiry, not a court ruling.

      Summarized on Oct 29, 2026

      Read the source ›
      Italy · 1535-1545

      Record the terms when sharing a secret method

      A scholar shared a secret math method on a promise it would stay private. Another scholar published it with credit, and a public dispute followed. A history source says the first scholar lost status and income.

      Historical account from a secondary reference source, covering events in 1535–1545.

      Summarized on Oct 29, 2026

      Read the source ›
      United States / China · 2006

      Credit the drafts behind a proof account

      Writers faced criticism that their account of a math proof gave poor credit and copied a page from another draft. They changed that page in a later version. The journal board apologized.

      Based on a secondary summary of an attribution dispute, not a court decision.

      Summarized on Oct 29, 2026

      Read the case summary ›

      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.

      No verified acceptance position is included.

      Other ways to do this

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

      • arXiv preprint

        Publishes submitted preprints in a public repository.

        Visit site

      • Zenodo / OSF preprints (DOI)

        Provides public DOI-dated deposit.

        Visit site

      • Git commit history or GitHub private repo

        Keeps source-code revisions in a repository.

        Visit site

      • OpenTimestamps

        Creates Bitcoin-anchored timestamp evidence.

        Visit site

      • Emailing yourself or colleagues

        Keeps emailed copies of files.

        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 prove you wrote or discovered the result, that the proof is correct, that no one found it earlier, or how a journal, department or committee will rule on priority.

      This cannot establish a correct proof, discovery, authorship, universal priority or a journal’s decision.

      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 time receipt prove I proved the theorem first?

      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 answer
      Do I still need to post to arXiv?

      Probably yes if you want the community to see a public dated claim. arXiv's date stamp is set at final submission. A time receipt is a private supporting record you can keep before you share anything.

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

      Context for this answer
      Are my files uploaded?

      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 answer
      What should I add: the .tex, the PDF, or both?

      Both, plus notes or code files that matter. Changing a single byte, including recompiling the PDF, gives a different fingerprint, so receipt the exact files you will share.

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

      Context for this answer
      How does the timestamp work?

      A timestamp authority signs your fingerprint with a time under RFC 3161, and anyone can check the signature. It is then anchored in Bitcoin for a permanent record.

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

      Context for this answer
      Has priority been disputed before?

      Often. The Newton-Leibniz fight turned partly on when private manuscripts were written and who saw them, and the 16th-century cubic dispute turned on what was shared in secret.

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

      Context for this answer
      Will a journal or committee accept a time receipt?

      No journal or committee acceptance rule is established by the sources cited here. Each venue decides what it accepts. Keep the original proof files, submission records and any native version history.

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

      Context for this answer
      What 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 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.