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.
AI governance
Preserve the released model card, evaluation report, configuration and artifact digest as one version-specific reference, alongside registry history.
Preserve the released model card, evaluation report, configuration and artifact digest as one version-specific reference, alongside registry history. Keep your original source records together, then date the exact files. It does not establish authorship, reproducible evaluations, accurate capabilities, actual deployed weights, lawful training data, risk approval or AI Act compliance.
Your photos and files stay on your device, so keep them.
EXAMPLE
Model card and evaluation report as released with each model version
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.
Model card and evaluation report as released with each model version
Model card and evaluation report as released with each model version
01 · Keep the exact files
Keep the original files for model card and evaluation report as released with each model version. Include any existing photos, signed records and source-system exports.
Records to keep: Hash of model card, eval results and model artifact digest
Model card and evaluation report as released with each model version
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.
Model card and evaluation report as released with each model version
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.
AI Office and downstream providers
Article 53 documentation duties
Required technical documentation and downstream information exceed a public model card; scoped open-source exception and systemic-risk qualification apply.
Source summary as of 2026-10-29. Check the current source and applicable local rules.
Read the sourceTransition/application
Articles111 and113
Chapter V applies from August 2, 2025; the specified pre-existing models have an August 2, 2027 transition. A receipt does not complete documentation or disclosure duties.
Source summary as of 2026-10-29. Check the current source and applicable local rules.
Read the sourceCovered model risk management
SR26-2
Current risk-based guidance supersedesSR11-7 and excludes generative/agenticAI; documentation is only part of applicable governance.
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 establish authorship, reproducible evaluations, accurate capabilities, actual deployed weights, lawful training data, risk approval or AI Act compliance.
It does not establish authorship, reproducible evaluations, accurate capabilities, actual deployed weights, lawful training data, risk approval or AI Act 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.
What should a model card describe?
Hugging Face lists intended uses, limitations, training details, datasets and evaluation results.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerIs a registry alias a fixed version?
MLflow documents aliases as mutable references. Preserve the explicit model version and artifact reference as well.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDo model-card edits create a new version?
SageMaker says edits other than approval-status updates create additional card versions. This is product behavior, not proof of independent approval.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerDoes an EU model card satisfy Article 53?
No. The scoped GPAI provider duties include maintained technical documentation and downstream information, with specific exceptions and additional obligations.
Source summary as of October 30, 2026. Check the current source and its scope.
Context for this answerIs SR11-7 the current general AI rule?
No. SR26-2 supersedes it and excludes generative and agenticAI from that guidance; it is tailored banking supervision.
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.