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.
Factory / supply chain
Keep the exact batch certificate and supporting inspection file version.
Keep the exact batch certificate and supporting inspection file version. Keep your original source records together, then date the exact files. It does not prove identity, authorship, truth, location, sending, receipt, approval, consent, compliance or the outcome of a dispute.
Your photos and files stay on your device, so keep them.
EXAMPLE
Batch quality certificate
1 Nov 2026
Authority time: 14:02 UTC · example
Bitcoin block time: 14:10 UTC · example
Last checked: 15:02 UTC · example
Bitcoin block time: 14:10 UTC · example
Last checked: 15:02 UTC · example
✓ Dated◆ Permanent
Now keep it safe: three things
- Keep your photos and files unedited. The receipt only matches the originals. Put them in an album such as “My records”.
- Save this receipt to your camera roll.
Keep the receipt file too. The image is a handy copy; checking needs the file.
- 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?
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 upWrite 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.
- Write it down straight away, on paper or in the box on a step.
- Put the date, time and place at the top, and who you spoke to.
- Use their words where you can; separate what you saw from what you were told.
- Sign or initial a paper note, photograph it and add the photo.
- 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.
Batch quality certificate
Batch quality certificate
01 · Keep the exact files
Keep the original files for batch quality certificate. Include any existing photos, signed records and source-system exports.
Records to keep: Certificates of conformance and inspection data per lot at shipment
Batch quality certificate
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.
Batch quality certificate
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 records made at the time matter.
Real cases where dated records mattered. We don’t claim a time receipt would have changed the result.
United States; federal · 2019
A batch certificate must match the real tests
A maker admitted changing tests and giving false certificates. It agreed to plead guilty and its parent to pause charges, with court approval and terms still to meet. Civil claims stayed disputed, and later results were not checked.
Summarized on Oct 29, 2026
Read the source ›United States; federal Washington · 2022
False strength tests can bring personal penalties
A lab boss faked strength tests for metal used in Navy parts. The boss pleaded guilty and went to prison. This was a personal sentence, separate from the company's deal.
Summarized on Oct 29, 2026
Read the source ›United States; federal · 2025
Military-grade invoices need the required tests
The government said a supplier billed goods as military-grade without doing the required tests. The firm settled the claims. The deal expressly made no finding of fault.
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.
FAR 52.246-15, pageFAC 2026-01
Use of certificate requires written contract-administration authorization in the specified circumstances; signed certificate accompanies inspection/receiving copies.
Government inspection/rejection rights remain; dates do not confer permission or automatic acceptance. Contract-specific scope.
Source summary as of 2026-10-29. Check the current source and applicable local rules.
Read the source21 CFR 211.194, eCFRup-to-date 27 October 2026
Laboratory records include lot/sample identifiers, original test data, calculations, dates and reviewer evidence.
A certificate summary or fingerprint cannot substitute for complete data; no advice about product release or medical use.
Source summary as of 2026-10-29. Check the current source and applicable local rules.
Read the sourceOther ways to do this
Prices change. Check each provider’s site for current prices and service details.
Related workflows.
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, sending, receipt, approval, consent, compliance or the outcome of a dispute.
It does not prove identity, authorship, truth, location, sending, receipt, approval, consent, compliance or the outcome of a dispute.
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.
Is the certificate the same as test data?
No. The pharmaceutical record rule separately calls for complete test data and calculations; a summary certificate is a different file.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerWhat identifies a lot in the bundle?
Use the existing source records' lot/sample identifiers and dates. The pharmaceutical rule lists those fields in its own limited scope.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDoes a conformance certificate force acceptance?
No. FAR 52.246-15 preserves inspection and rejection rights and requires written authorization to use that procedure.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerCan dating a false result make it reliable?
No. The aluminum case concerns admitted alteration of results; a receipt would only date the bytes supplied.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerShould changed methods or corrected records be kept?
Keep the appropriate original and revised files under your actual quality policy. The opened pharmaceutical rule specifically addresses method modifications and their reasons/data.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerThe 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.