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How?
Use the worksheet alongside the original records; use an official form where required.
Fill in
By making a receipt you agree to the Terms and Privacy Policy. The Bitcoin record is permanent.
confined space entry log
Keep the permit and its supporting records together.
Confined space entry log — Keep the permit and its supporting records together. Keep the permit, entry record and attendant sign-off together. Use the free worksheet alongside your safety process.
Your photos and files stay on your device, so keep them.
Your free confined space entry worksheet.
Keep the original source records alongside this supplementary worksheet.
- Permit reference
- Authorized duration
- Entrant
- In time
- Out time
- Attendant sign-off
Check your regulator's own form. The printable version lists the source behind every field. CSV versions have an instruction row above the headings.
Then date your filled-in copy.
Keep the completed copy and its source records. A time receipt dates those exact bytes; it does not establish that an entry is true or accepted. Save a new copy after each entry record is complete.
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.
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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.
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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.
Entrant and attendant presence at a confined space entry
Entrant and attendant presence at a confined space entry
01 · Keep the exact files
Export the entry permit, attendant sign-off and any tag-tap or gas-reading log from your existing safety process.
Records to keep: Existing capture-system and sign-off records
Entrant and attendant presence at a confined space entry
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.
Entrant and attendant presence at a confined space entry
03 · Keep the evidence
Keep the exact canceled permit and its supporting records under your organization’s retention process.
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.
US federal · c.2012 (incident Jan 2009; decision date not confirmed)
Record entry times and keep testing proof
After a worker fell ill in a tank, checks found gaps in permits and air tests. The panel kept most safety findings and said permit and testing rules were broken on purpose. It dropped one gas-meter finding.
Safety commission decision; the exact decision year was not confirmed in the supplied excerpt.
Summarized on Oct 29, 2026
Read the decision ›Iowa, US · 2007
Regular entries need records of actual permits
Workers entered a sewer almost daily for three months, but the firm produced only two permits. The court kept the finding that it broke the permit rule.
Summarized on Oct 29, 2026
Read the decision ›Arizona, US · 2010
Missing safety records can count against a firm
Workers died after entering a tank. A new safety chief found no entry permits, air-test results or safety-meeting records. The court kept the firm's guilty findings and sentences.
Summarized on Oct 29, 2026
Read the decision ›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.
OSHA, 29 CFR 1910.146
Requires a signed entry permit before entry (e)(1)-(2), an attendant who keeps an accurate count of entrants (i)(3) and stays outside (i)(4), and retention of each canceled permit for at least 1 year (e)(6). Requires the permit to state the authorized duration of entry but does not require cryptographic or third-party timestamps.
Rule sets what must be recorded and kept, not how it is dated or fingerprinted. A time receipt supports the record; it does not replace the permit. Paragraph cites came via Cornell LII.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceOSHRC / OSHA enforcement
Commission decisions weigh the permits and records produced (e.g. Dana Container).
No published guidance on cryptographic timestamps for permits found.
Source summary as of 2026-10-28. Check the current source and applicable local rules.
Read the sourceeIDAS Regulation (EU) 910/2014, Art. 41
Electronic or nonqualified form alone is not a reason to deny a timestamp legal effect or admissibility. Other evidence requirements still apply. Article 41(2) addresses the qualified-timestamp presumption, and Article 42 its requirements; provider status alone is insufficient.
This describes the statutory evidence rule, not Timevolt qualification or a guarantee of admission. No claim about cross-border recognition is made here.
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 who was physically inside, that the attendant stayed at the opening, that atmospheric readings were true, or that your program complies with OSHA 1910.146.
This does not prove anyone entered, an attendant stayed present, readings were accurate, or safety duties were met.
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 is a time receipt for a confined space entry log?
It is proof that your permit, tag-tap and sign-off files existed, unchanged, by a certain time. Your device makes a fingerprint of each file, an independent timestamp authority dates it, and it is later anchored in Bitcoin. The files themselves are never uploaded.
Does this replace the OSHA entry permit?
No. OSHA still requires the signed entry permit and an attendant keeping an entrant count. The time receipt backs up the records you already keep.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerHow long do I have to keep entry permits?
OSHA 1910.146(e)(6) says to keep each canceled entry permit at least 1 year. Keep the receipt with the permit for that long.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDoes it prove the attendant was at the opening?
No. It proves the log files, such as tag taps and the attendant co-sign, existed by the receipt time. It cannot show who was physically where.
Why does a dated copy matter after an incident?
Keep the exact permit and its supporting records. A receipt dates those bytes; it cannot establish when entry happened or whether the permit was completed truthfully.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerAre 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.
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 answerWill OSHA or a court accept it?
We found no OSHA or court rule that accepts or rejects it; they decide what evidence counts. It is supporting evidence about timing, not a guarantee.
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.