Record a technical disclosure here and it becomes a timestamped public publication: hashed with SHA-256, entered on an append-only hash-linked ledger, anchored to the Bitcoin blockchain via OpenTimestamps, and submitted to the Internet Archive. Free, no account, verifiable by anyone.
Built on the REM Protocol prior art record system (draft-reilly-rem-protocol-02). Full Records are public disclosures that may serve as prior art under 35 U.S.C. § 102(a)(1). This registry timestamps and publishes; patent offices and courts decide legal effect. Not legal advice.
Choose how much you disclose. Only a Full Record publishes your content and can work as prior art. A Partial Record proves your content existed at this time without revealing it.
Records cannot be edited or deleted once created. If content violates the acceptable-use terms, the operator can withdraw the published text, but the record's hashes, timestamp, and place in the chain remain permanent. Limits: 10 records per hour and 30 per day per address, 750 KB per disclosure.
Every record, newest first. Full Record disclosures are searchable by their text.
| Record | Type | Recorded (UTC) | SHA-256 |
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Both tools run against the live ledger. Hashing happens in your browser; your text is not uploaded.
Read this before creating a record. It is short because it matters.
What you may record. Technical disclosures you have the right to publish: your own inventions, methods, designs, and research. By submitting a Full Record you publish that text to the world, permanently, under your own responsibility.
What you may not record. Content you do not own or have permission to publish; other people's personal data; trade secrets that are not yours to disclose; malware, exploit code intended for harm, or instructions for weapons; spam, advertising, or link farms; anything unlawful. Note that publishing someone else's confidential information here does not create prior art rights for you and may expose you to liability.
Think before you publish. A Full Record is a public disclosure. In the United States you generally have 12 months from your own disclosure to file a patent application; in most other jurisdictions a public disclosure before filing can destroy your own patentability. If you want a patent, talk to a patent attorney before publishing. If you want to prove existence without disclosing, use a Partial Record.
Withdrawal. Anyone can report a record from its page. The operator can withdraw published content that violates these terms. Withdrawal removes the text from this registry but never alters hashes, timestamps, or the ledger chain, and copies may persist in independent archives that captured the page.
No warranty, no advice. This registry timestamps and publishes. It does not examine, endorse, or verify claims, and it is not legal advice. Whether a record functions as prior art in any proceeding is decided by patent offices and courts.