Screenshots get thrown out of court.
ProofSnap doesn't.

ProofSnap is a Chrome extension that captures web pages as legal evidence with blockchain timestamping, ensuring the authenticity and integrity of digital evidence.

ProofSnap uses OpenTimestamps to anchor a SHA-256 hash of your evidence to the Bitcoin blockchain, creating a cryptographic proof of when the capture was made. This timestamp is independently verifiable and cannot be backdated or tampered with, providing independently checkable proof that your evidence existed at a specific point in time.

ProofSnap includes a 7-day free trial with all plans. The trial requires a credit card, and you are not charged if you cancel before it ends. Choose from flexible monthly or annual subscriptions: Essential ($8.99/month or $80/year), Professional ($16.99/month or $160/year), or Enterprise ($28.99/month or $280/year). Annual plans save up to 26%.

ProofSnap generates forensically sound evidence with cryptographic proofs aligned with eIDAS 2 standards for qualified timestamps and digital signatures. Admissibility depends on jurisdiction and specific legal requirements. Consult with legal professionals for specific cases.

Regular screenshots can be challenged in court because they carry no proof of when they were taken or whether they have been altered. Australian law helps, but it does not do the work for you. Under the uniform Evidence Acts, section 146 creates a rebuttable presumption that a device or process which ordinarily produces a particular outcome produced that outcome on the occasion in question, while section 147, the business-records equivalent, is expressly unavailable for a document produced for or in contemplation of a proceeding, which is what a litigation capture is. Because the section 146 presumption is rebuttable, the other side is free to argue that an image file says nothing about when it was made or what was edited. Note that the uniform scheme covers the Commonwealth, NSW, Victoria, Tasmania, the ACT and the Northern Territory, while Queensland, Western Australia and South Australia apply their own Evidence Acts. Tribunals such as NCAT, VCAT and QCAT are not bound by the rules of evidence at all, but they still weigh how reliable a record looks.

ProofSnap addresses this by creating a forensic evidence package containing a SHA-256 hash proving the content has not been modified, an RSA-4096 digital signature for authenticity, a blockchain timestamp proving when the capture happened, and full metadata including the URL, the browser and the capture time in UTC. That gives a court or a tribunal member something concrete to weigh, and it makes the section 146 presumption far harder to rebut than a plain image file.

ProofSnap uses three layers of cryptographic protection:

1. SHA-256 Hashing: Every file in the evidence package is hashed. Changing even a single pixel or character produces a completely different hash, making any tampering immediately detectable.
2. Digital Signature: The manifest (listing all files and their hashes) is digitally signed with a private key. The corresponding public key is included for anyone to verify authenticity.
3. Blockchain Timestamp: The manifest hash is anchored to the Bitcoin blockchain via OpenTimestamps, creating an immutable record of when the evidence was captured. This timestamp cannot be forged or backdated.

Together, these mechanisms create a chain of integrity that proves the evidence is authentic, unaltered, and was captured at a specific point in time.

The eIDAS 2 regulation (EU 2024/1183) is fully rolling out by the end of 2026, establishing stricter standards for electronic identification, digital signatures, and qualified electronic timestamps across all EU member states.

Under Article 41, qualified electronic timestamps enjoy a legal presumption of accuracy for the date and time they indicate, and the integrity of the data to which the timestamp is linked. The presumption covers date, time and integrity; whether the underlying evidence is admitted remains a matter for national procedural law.

ProofSnap's cryptographic proofs align with eIDAS 2 requirements: SHA-256 hashing for data integrity, RSA-4096 digital signatures for authenticity, and blockchain timestamps via OpenTimestamps for independent time verification. In an Australian court the timestamp is independent corroboration of time and integrity, not a presumption.

Forensic mode is an opt-in capture depth included in the Professional, Enterprise and Company plans (not in Essential or the SnapPacks).

Adds a complete archive of the page's network layer: every HTTP request and response (network.har), a WARC copy of the page, all loaded resources, and the full TLS certificate chain. To capture that it attaches the debugger (the browser shows a “being debugged” banner).

Every one of those files is hashed into the RSA-4096 signed manifest, so the OpenTimestamps blockchain anchor and the eIDAS qualified timestamp cover the network archive exactly as they cover the screenshot.