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Finance / procure-to-pay

Keep the exact record before the next hand-off.

Keep the exact record before the next hand-off. Keep your original source records together, then date the exact files. It does not prove who called, that the number was trustworthy, the conversation happened, bank ownership, consent, actual approval, delivery, payment safety or legal compliance.

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

EXAMPLE
Vendor bank detail change verified by call-back before the next payment run
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.
      Vendor bank detail change verified by call-back before the next payment run

      01 · Keep the exact files

      Keep the original files for vendor bank detail change verified by call-back before the next payment run. Include any existing photos, signed records and source-system exports.

      Records to keep: The change form and the call-back confirmation record (caller, number used, time)

      Vendor bank detail change verified by call-back before the next payment run

      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.

      Vendor bank detail change verified by call-back before the next payment run

      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.

      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

      FBI prevention guidance

      Independently verify bank-detail and payment-procedure changes

      Look up the company's telephone number independently and verify changes by call or in person. Guidance does not endorse a timestamp as proof of a genuine conversation.

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

      Read the source
      Needs something else · Australia, Queensland

      Trade and Investment Queensland suppliers

      Supplier payment verification workflow

      TIQ's Australian supplier options include a secure bank link or verification call; international supplier process differs. Applies to TIQ suppliers only.

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

      Read the source
      Needs something else · Australia, Queensland

      Office of the Health Ombudsman suppliers

      New supplier or changed bank detail verification

      OHO describes Eftsure verification with secure-link or phone options. A saved note does not itself complete that process.

      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.

      • Eftsure

        Provides supplier verification and payment protection.

        Visit site
      • Trustpair

        Provides supplier bank-account validation and payment-campaign checks.

        Visit site
      • BILL Accounts Payable

        Provides integrated invoice, approval and payment workflow.

        Visit site

      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 who called, that the number was trustworthy, the conversation happened, bank ownership, consent, actual approval, delivery, payment safety or legal compliance.

      It does not prove who called, that the number was trustworthy, the conversation happened, bank ownership, consent, actual approval, delivery, payment safety or legal compliance.

      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.

      Should the callback use the number in the change email?

      FBI guidance says to look up the company's number independently rather than use the number supplied in a potentially fraudulent request.

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

      Context for this answer
      Does an email chain establish a safe bank change?

      FBI guidance recommends verifying changes in account numbers or payment procedures with the person, by call or in person. A stored email chain does not carry out that check.

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

      Context for this answer
      Must every supplier use the same verification method?

      No universal method is established here. TIQ describes specific Australian supplier options and a different international process.

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

      Context for this answer
      Can a supplier bank change require a separate check?

      OHO says new suppliers and changed banking details go through its verification process. This is OHO's published supplier workflow.

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

      Context for this answer
      Does saving a callback note confirm account ownership?

      No. OHO describes bank-link or phone verification steps; preserving the note's bytes is distinct from completing or validating those steps.

      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.