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.
proof of mailing
Keep the letter and the mailing evidence together.
Proof of mailing — Keep a dated copy of your letter alongside separate postal evidence. A file timestamp cannot establish the physical contents of the envelope.
Your photos and files stay on your device, so keep them.
EXAMPLE
What was in the envelope when you mailed it
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?
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 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.
What was in the envelope when you mailed it
What was in the envelope when you mailed it
01 · Keep the exact files
Save the exact letter and addressed label before sealing. Keep the postal receipt and tracking record separately.
Records to keep: Letter or document as sent · Envelope / addressed label · Postal receipt or certificate of mailing
What was in the envelope when you mailed it
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.
What was in the envelope when you mailed it
03 · Keep the evidence
Keep both the original postal evidence and the exact document files. Follow the receiving body’s mailing and delivery rules.
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 sending records matter.
Real cases where dated records mattered. We don’t claim a time receipt would have changed the result.
New York, US · 1997
Match each envelope to its contents
A tenant and landlord disagreed about which court papers came in an envelope. Its return address mattered, but the court could not tell which mailing it was. It ordered a hearing on the envelope contents and address.
Ruling on service of court papers, not a final finding about the contents. Other defenses were rejected.
Summarized on Oct 29, 2026
Read the source ›Alabama, US · 2006
Tie the signed receipt to the letter
A doctor said a signed-for envelope might not have held the required notice. The sender linked the letter to the postal receipts in a sworn account. The court found no proof of different contents and kept the hospital’s win.
Applied hospital staff bylaws; a signed receipt alone was not the whole proof.
Summarized on Oct 29, 2026
Read the source ›Related cases
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.
Domestic Mail Manual 503 (Extra Services)
DMM 503: Certificate of Mailing is evidence that individual mailpieces were presented to USPS for mailing
States certificates of mailing do not provide a record of delivery and USPS does not retain copies. Says nothing about contents. A time receipt can complement it but never replaces the postal receipt.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceInternal Revenue Code section 7502
26 USC 7502(c): registered mail registration is prima facie evidence of delivery; certified mail and electronic filing by regulation; designated private delivery services are covered separately in 7502(f)
Statute names postal or designated-carrier records, not independent file timestamps. Courts in the cases above differed on extrinsic evidence of mailing.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceFederal Rules of Civil Procedure, Rule 5
Rule 5(b)(2)(C): service by mail is complete on mailing; 5(d)(1)(B): a certificate of service is filed with the paper, except none is required when served through the court's electronic-filing system
Rule does not require the certificate to list the document contents or any digital timestamp; a time receipt is not mentioned either way.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceCode of Civil Procedure section 1013a
Proof of service by mail by affidavit (or certificate in some paragraphs) setting forth the exact title of the document served and mailing details
A sworn affidavit from the person who mailed is the form of proof. A time receipt over the exact document supports what the affiant says was served but does not replace it.
Source summary as of 2026-10-28. 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 the envelope was mailed, delivered, or that these files are what went into it, who wrote the letter, or that it is true; the post office record and the court or agency decide weight.
The timestamp dates the files, not the act of mailing or the physical contents of the envelope. Postal evidence and linkage of contents remain separate.
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.
What does a certificate of mailing prove?
It is a postmarked receipt that the item was presented to the Post Office for mailing on that date. It does not show delivery, and USPS does not keep a copy.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDoes certified mail prove what was inside the envelope?
No. Certified mail records mailing and delivery or attempt, not the contents. That is the gap a time receipt on the exact letter helps fill.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerIs a certificate of mailing the same as certified mail?
No. A certificate of mailing proves only that the item was handed in. Certified mail adds tracking and a delivery or attempt record, at a higher fee.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerIf I mail something, is it presumed the other side received it?
Many courts presume a properly addressed, stamped letter was received, but it can be rebutted. In tax filings sent to the IRS some circuits do not apply it to regular mail.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDoes a time receipt prove I mailed the letter?
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 answerIs my letter uploaded to Timevolt?
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.
Do I still need a sworn statement of mailing?
Often yes. Some courts require a declaration naming the document served and the address on the envelope, and a time receipt does not replace it.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerHow long does certified mail tracking stay available?
One vendor guide says about 120 days, so save tracking printouts early. This is a vendor claim; check USPS.
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.