Solutions / Software Developers
Document Source Code and Technical Work with Verifiable Evidence
Help software teams create timestamped evidence of source code, commits packages, and technical deliverables using hashing, trusted timestamps, and blockchain records.
Source code routinely changes hands before the paperwork catches up: a prototype shared with a prospective co-founder over coffee, a proof-of-concept sent to an investor under a verbal NDA, a contractor handoff where the final IP-assignment agreement is still being negotiated. In each of these moments, the question 'what exact code existed, and when?' can matter a lot later—and by the time it does, git history alone is often not enough, since local commit timestamps can be edited and force-pushed history rewritten. ProofIt gives engineering teams an independent, cryptographic answer to that question: hash a release archive, tag, or build package, get it timestamped and optionally anchored on Ethereum, and keep a certificate that anyone can verify without needing repository access or a ProofIt account.
Common use cases
- Timestamp source-code archives, SDKs, and release packages before disclosure to investors, partners, or contractors
- Document prototype builds and technical deliverables shared with clients ahead of a signed statement of work
- Create evidence packages that can support IP discussions, contractor handoffs, or co-founder equity negotiations
- Certify a specific tagged release or commit archive before an open-source relicensing or fork decision
What the evidence includes
- SHA-256 fingerprints of repository archives or release artifacts—only the hash leaves your machine
- RFC 3161 trusted timestamps from Sectigo where enabled, independently verifiable via standard tooling
- Ethereum-anchored records that are permanent and are not reversed or deleted on subscription cancel
How it works for software developers, engineering teams, and technical founders
- Tag or archive the exact commit, build, or release package you need to document—not a branch that keeps changing
- Upload the archive to ProofIt to generate its SHA-256 hash
- Request an RFC 3161 timestamp and, optionally, Ethereum anchoring for that hash
- Share the code under whatever NDA, license, or contract your situation requires
- Keep the certificate and TSA token; if a dispute arises later, recompute the archive's hash and match it against the certified record
Frequently asked questions
Does ProofIt ever see or store my actual source code?
No. ProofIt computes a SHA-256 hash of the archive you upload; only that hash is sent to the timestamping authority and, optionally, written on-chain. Your original file is stored under ProofIt's standard retention policy and is never published publicly.
Can I certify a private repository without granting ProofIt access to it?
Yes—you export or archive the specific version you want to document (a zip of a tag, for example) and upload that single file. ProofIt never needs, and never requests, direct access to your git host or CI system.
Is this a substitute for a proper IP-assignment agreement with a contractor?
No. Certification documents that a specific artifact existed at a specific time; it's evidence you'd use alongside an IP-assignment agreement or NDA, not instead of one.
Related guides
Important limits
ProofIt creates timestamped, independently verifiable evidence of existence, time, and integrity. That is not the same as automatic legal ownership, a copyright guarantee, or guaranteed court acceptance. Platforms and authorities decide outcomes when you include a certificate with a complaint.