PriorMark
Intellectual Property Protection
Nothing is saved, recorded, or charged
Choose your protection level
Both options would record a tamper-proof fingerprint on the Hedera public ledger. Select one to see how each path works.
Proof-Only
Your files never leave your device — ever. We record only a cryptographic fingerprint on the public Hedera ledger, giving you a tamper-proof timestamp without surrendering your content to anyone.
See pricing →Your files never leave your device — SHA-3/512 fingerprints are generated locally and recorded on-chain on the Hedera Ledger
Title, summary, and description written publicly to the same Hedera ledger
Permanent, immutable record on the Hedera public ledger
Consensus timestamp establishes legally defensible proof of prior possession
Independently verifiable by anyone — no login required
Downloadable record file with your claim ID and Hedera identifiers
Proof + Storage
Everything in Proof-Only, plus an encrypted backup of your files stored securely with us. If your local copies are ever lost or altered, your backup is here — and only you can decrypt it.
See pricing →Everything in Proof-Only
Your files backed up here — encrypted with AES-256-GCM before leaving your browser
Only you hold the decryption key — we do not have the ability to read or alter your files
Stored in redundant, enterprise-grade cloud infrastructure
Cancel storage anytime — your ledger record remains permanent
Billing automatically adjusts if you delete stored files
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