PriorMark
Intellectual Property Protection
Intellectual Property Protection
Prove you were first.
Your creation.
Your timestamp.
Your proof.
PriorMark protects what you create, what you invent, and what you keep confidential — with permanent, immutable proof of prior possession that exists long before any legal dispute begins.
Better than blockchain. Anchored on Hedera.
Who it's for
Built for professionals who can't afford to be second
Trade Secret Holders
Under the DTSA and UTSA, proving prior possession is decisive in misappropriation claims. A forensic timestamp establishes ownership on the public ledger — your secret stays sealed until you choose to disclose it.
Artists & Creators
Creative disputes come down to who can prove what they made and when. Stamp your work before it leaves your hands and before collaborations get complicated — so your contribution is never up for debate.
Inventors
Establish your timestamp before filing. A ledger record predating a competitor's application can be admissible prior art — for startups and independent inventors alike.
In plain English
PriorMark lets you prove you had the idea, innovation, invention or creative work first. You upload your work, we compute a cryptographic fingerprint of your files, and record that hash permanently on a public "blockchain" — creating an immutable record that your specific files existed at that exact moment, verifiable by anyone, forever — including a court, a patent examiner, or opposing counsel. The timestamp and hashes are your proof — an immutable digital record of your work, forever.
How it works
1
Choose your path & describe your IP
Select Proof-Only (fingerprint only, no backup) or Proof + Storage (encrypted backup). Fill in your title and description — these become your permanent, publicly readable ledger record.
2
Your content is fingerprinted
A cryptographic fingerprint is computed in your browser. For Proof + Storage, files are also encrypted before anything leaves your device — we receive only ciphertext, never your originals.
3
Sealed on Hedera's public ledger
The fingerprint and your description are written permanently to the Hedera Ledger — a public, tamper-proof distributed ledger. An immutable consensus timestamp is assigned: your legally defensible proof of prior possession.
4
Retrieve & verify anytime
My Submissions gives you your Ledger Record — your ledger link, file fingerprints, and claim details. With Proof + Storage your encrypted file downloads anytime via Manage Files. Anyone can independently verify your claim against the public ledger without PriorMark.
Better than blockchain — absolute finality, more efficient, proven more secure. Every submission is permanently recorded on Hedera's tamper-proof public ledger. Carbon-negative by policy.
Your content is hashed locally in your browser using SHA-3/512 — the current NIST standard. Only the fingerprint reaches the ledger. Your content never leaves your device.
Full content is encrypted with AES-256-GCM before upload — stored securely in the cloud and never publicly readable.
Pricing
Secure IP protection - Affordable for everyone
PriorMark
$150 – $250
per submission
(up to 20 documents)
priority is public
IP stays private
~60 seconds
vs
Trade Secret Counsel
$500–$5k+
NDAs, assignments & policies
⚠ no timestamp on record
weeks to months
Creative IP Counsel
$2k–$10k+
authorship disputes & contracts
⚠ no independent timestamp on record
weeks to months
Patent Application
$1.5k–$50k+
provisional or full filing + legal
⚠ publicly discloses your IP
12 months to 3+ years
Forensic Timestamp
Trade Secrets
Creative Works
Inventions
Content Private
No Filing Required
PriorMark
✓
1
✓
✓
✓
2
✓
3
✓
Trade Secret Counsel
✗
✓
Partial
✗
✓
✓
Creative IP Counsel
✗
Partial
✓
✗
✓
✓
Patent Application
Partial
4
✗
✗
✓
✗
✗
1
The SHA-3/512 fingerprint and consensus timestamp are permanently written to the Hedera public ledger — independently verifiable by anyone by recomputing the hash from your original files. No trust in PriorMark required.
2
PriorMark establishes proof of prior possession and supports prior art challenges and a prior commercial use defense under 35 U.S.C. § 273 — you may continue using your invention even if someone else is later granted a patent. It does not grant exclusive patent rights. Using a PriorMark record as prior art requires sufficient technical disclosure — consult a patent attorney.
3
File contents are never disclosed — only SHA-3/512 fingerprints reach the ledger. Your title, summary, and description are publicly readable on the Hedera ledger.
4
A patent establishes a government-assigned priority date but publicly discloses your IP and requires a formal filing. It is not an independent forensic timestamp — the priority date is assigned by a government office, not a public distributed ledger.
Jurisdiction note
Broadly informed by US IP concepts; not a legal analysis for any particular region. Laws vary significantly by country. PriorMark's ledger record is globally accessible — as example, courts in France (2025) and China (2018) have also accepted blockchain timestamps as evidence. Consult local counsel for your jurisdiction.
Nothing on this page constitutes legal advice. Consult a licensed attorney for guidance specific to your situation.
Legal Precedent →Founded By
Chris Hopkins
Professional Tech Nerd
Two decades in software, data engineering, and database systems — from energy conservation platforms to global-scale pharma and advertising infrastructure. A father, blockchain enthusiast, and the kind of engineer who reads protocol specs for fun. He built PriorMark because the people behind good ideas deserve proof and reward — and for the first time, the technology to provide both is affordable.
LinkedIn →Ready to establish your timestamp of proof?
Takes about 60 seconds. No blockchain wallet or knowledge required.
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