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Timevolt / Spreadsheet of spending, as of the date it was made
Family law / finance

Preserve an existing authorized analysis workbook with its source statements and an explanation of later changes; no financial, tax or legal analysis service.

Preserve an existing authorized analysis workbook with its source statements and an explanation of later changes; no financial, tax or legal analysis service. Keep your original source records together, then date the exact files. It does not prove identity, authorship, truth, location, consent, sending, delivery, approval, ownership, compliance, acceptance or who wins.

Try a file locally

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

EXAMPLE
Spreadsheet of spending, as of the date it was made
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.
      Spreadsheet of spending, as of the date it was made
      Spreadsheet of spending, as of the date it was made

      01 · Keep the exact files

      Keep the original files for spreadsheet of spending, as of the date it was made. Include any existing photos, signed records and source-system exports.

      Records to keep: The spreadsheet that categorizes each transaction, plus the bank statements it was built from

      Spreadsheet of spending, as of the date it was made

      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.

      Spreadsheet of spending, as of the date it was made

      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.

      California, US · 1975

      An account schedule may need more supporting proof

      A spouse used a schedule to trace funds owned alone, but some bank records were missing. The schedule alone was not enough; witness evidence gave more support. The court kept the finding that the assets were separate property.

      Summarized on Oct 29, 2026

      Read the source ›

      Related cases

      Texas, US · 2013

      Keep source statements with the analysis

      Related: missing statements in asset tracing

      An asset claim had a ten year gap in bank records and used a paper not offered as evidence. Those challenges failed. Errors about Dutch benefits still required a fresh property split.

      Summarized on Oct 29, 2026

      Read the source ›
      California, US · 2019

      Detailed account records can support tracing methods

      Related: expert tracing from account records

      An expert used detailed source records and mixed methods to trace separate funds. The court accepted the tracing. It returned support and fee questions for more decisions.

      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 courts, Rule 1006effective1December2024

      Official Federal Rules of Evidence

      Rule 1006 permits qualifying summaries of voluminous admissible material; underlying originals or duplicates must be made available to other parties.

      Scope: Rule 1006, page 42 of the official 44-page rules book. Illustrative aids are governed separately by Rule 107; no guarantee of admission or substitute for supporting records. Official current rules page says last Evidence amendment2024.

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

      Read the source
      Needs something else · California, US divorce disclosure only

      California Courts self-help

      Keep originals and provide required copies of financial documents alongside the disclosure forms.

      Official document-handling instructions; no endorsement of a timestamp or automatic proof of a spreadsheet's conclusions.

      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.

      • Microsoft Excel

        Provides analysis workbook tool.

        Visit site

      • Google Sheets

        Provides collaborative spreadsheet alternative.

        Visit site

      • LibreOffice Calc

        Provides local open source spreadsheet.

        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 identity, authorship, truth, location, consent, sending, delivery, approval, ownership, compliance, acceptance or who wins.

      It does not prove identity, authorship, truth, location, consent, sending, delivery, approval, ownership, compliance, acceptance or who wins.

      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 the spreadsheet is correct?

      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
      Can the spreadsheet replace all supporting statements?

      No general guarantee. Federal Rule 1006 requires underlying originals or duplicates to be available to other parties when that rule applies.

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

      Context for this answer
      Is every courtroom chart evidence?

      No. The current federal rules distinguish qualifying Rule 1006summaries from Rule 107illustrative aids. A receipt does not decide which applies.

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

      Context for this answer
      What does a gap in source records mean?

      It can prevent a claimed account history being established, as in the historical Texas example. Dating an analysis cannot create the missing statements.

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

      Context for this answer
      Should a disclosure copy replace the original?

      California's disclosure instructions say to keep originals and provide copies. Those local instructions do not supply a universal retention period.

      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.