The Data Scientist’s Challenge
If you work as a data scientist, you know the risk: models, datasets, and analysis notebooks represent IP that needs creation proof. When it comes to version history documentation, the stakes are real - without independent evidence, disputes become your word against theirs.
Your Workflow with TimeProof
Timestamp milestone versions so the revision history is anchored outside your local tools, account, or folder structure. Best used when a version becomes reviewable, approved, or historically important. Common files in this workflow include milestone drafts, approval copies, and revision exports. Typical reviewers or counterparties include reviewers, clients, and auditors.
1. Train model.
2. Export weights.
3. Timestamp model + training data.
4. Document.
The timestamp step fits into that workflow without changing the tools you already use.
The timestamping step itself takes under 10 seconds. No blockchain expertise required.
Why Version History Documentation Matters
Build a blockchain-verified version history of evolving work products. A blockchain timestamp timestamps each version to create an immutable revision history, creating evidence that is:
- Independent — stored on the public Polygon blockchain, not controlled by TimeProof or any party
- Permanent — cannot be altered, deleted, or disputed after recording
- Verifiable — anyone can check the timestamp on Polygonscan without an account
- Cryptographic — the SHA-256 hash changes if even one byte of the file changes
How Timestamping Works
When a data scientist timestamps a file for version history documentation, TimeProof uses client-side file hashing (SHA-256). That 64-character value is the unique fingerprint for the exact version you selected, and if even one byte changes, the hash changes too. That fingerprint proves the exact version you created before it is shared or disputed. Your file never leaves your device.
TimeProof proves file existence by anchoring file hashes to the Polygon blockchain. The blockchain records the hash, timestamp, and transaction ID permanently, so anyone can verify the record independently on Polygonscan without relying on screenshots, local metadata, or someone else’s database.
For data scientists, ML engineers, and analytics professionals, that means build a blockchain-verified version history of evolving work products without relying on editable logs or file-system dates.
What You Receive
Every TimeProof timestamp for version history documentation includes:
- PDF certificate - a readable proof document you can keep with the project file, send to a client, or hand to counsel if the timeline is later challenged.
- Polygonscan link - direct public verification so a reviewer can confirm the blockchain record independently.
Verified instant timestamps also include: 3. Verified identity badge - the certificate shows the timestamp was created by a verified account, which is useful when timing and submitter identity both matter to the dispute or review.
With the Legal-Grade upgrade, you also receive the core evidence-package components documented by TimeProof: PDF, JSON, JWS identity attestation, and a ZIP bundle.
- Courtroom-Ready PDF - a presentation-ready evidence certificate when version history documentation needs more than a standard project record.
- JSON Metadata - machine-readable timestamp data for technical teams, audit trails, or structured evidence review.
- Identity Attestation (JWS) - a signed proof that ties the timestamp to a verified identity and can be verified through /.well-known/jwks.json.
- Complete Evidence ZIP - one bundle containing the Courtroom-Ready PDF, JSON Metadata, Identity Attestation (JWS), and supporting proof materials such as the Merkle proof, verification guide, and checksums, so the record is ready for formal review.
Real Scenario
Imagine you are a data scientist. A project changes over time, and later the team needs evidence showing which exact version existed before approval, submission, or release. The files at issue are often milestone drafts, approval copies, and redlined exports. Typical counterparties include clients, reviewers, and auditors.
Different parties cite conflicting drafts, an earlier file is overwritten, or someone claims a disputed change was already present in the approved version. Separate timestamps for each milestone fix the revision sequence to public dates instead of relying only on filenames, screenshots, or internal version logs.
With TimeProof, the dispute is resolved by independent proof instead of by screenshots, local metadata, or conflicting memories.
Related Comparisons
These comparisons help you evaluate adjacent proof methods before you settle on the workflow for this use case.
- TimeProof vs Google Drive Version History: Compare platform revision logs with independent proof of which exact version existed at each milestone.
- TimeProof vs Cloud Storage Timestamps: See why provider metadata does not replace proof tied to the actual approved file version.
- TimeProof vs Manual SHA256: Compare one-off hashing with a workflow built for revision chronology and later review.
Related Guides
Use these supporting pages to tighten the legal, technical, or pricing context around this workflow.
- Document Version History for Legal Documents: Move from scenario pages into artifact-level revision proof on the actual files under review.
- Verify Integrity of Legal Documents: Add fixed-reference integrity checks when the version dispute turns into a tampering question.
- Pricing: Review the current credit model for repeated revision, approval, and release workflows.
Cost for Data Scientist
TimeProof uses one unified credit balance, so data scientists, ML engineers, and analytics professionals can create routine proof early and only step up to verified features when the situation calls for it.
- Scheduled timestamps: 1 credit per file - available to everyone, with proof available within 6 hours.
- Instant timestamps: 2 credits per file - available to verified subscribers, anchored in about 2 seconds.
- Legal-Grade: Starter and Pro: 50 credits up to 25 files, then +2/file. Business: 25 credits up to 25 files, then +1/file. Enterprise: included.
One-time packs start at $15 for 100 credits. Verified monthly plans start at $19/month and include identity verification for instant timestamps and Legal-Grade.
That lets you use scheduled timestamps for everyday version history documentation records and reserve verified instant or Legal-Grade proof for the files most likely to be challenged.
Most data scientists, ML engineers, and analytics professionals need routine, repeatable protection rather than an enterprise rollout. TimeProof is priced for routine use through packs and verified monthly plans, so you can build evidence as you work instead of only after a dispute starts.
Privacy
Your files related to this workflow never leaves your computer. TimeProof uses client-side file hashing (SHA-256). Only the 64-character hash string is sent for anchoring. Because SHA-256 is one-way, it is not possible to reconstruct the original file from the hash. That lets data scientists, ML engineers, and analytics professionals protect work related to version history documentation without exposing the original file, unpublished draft, or client material.