A risk manager documents a parking lot hazard in March. Cracks in the asphalt, photographed and filed in a SharePoint folder. Six months later, a slip-and-fall claim arrives. The plaintiff's attorney argues the damage was present for over a year and the property owner failed to act.
The risk manager has photos. File metadata can be altered. A SharePoint timestamp isn't evidence. ProofLedger exists for exactly this gap: blockchain timestamps that prove when digital evidence existed, on a public ledger that nobody controls.
This is the core problem with evidence preservation in insurance and legal work. The documentation exists. The dates exist. But without a tamper-proof record tied to an independent source, the evidence can be challenged at any time.
Here's how the workflow runs. Drag site inspection files into the platform and it generates a SHA-256 hash of each one, then anchors that hash to two public blockchains: Polygon for instant confirmation within seconds, and Bitcoin for proof-of-work immutability on the oldest continuously running decentralized network. Your original files never leave your device. Only the hash goes on-chain. What comes back is a blockchain evidence record with a timestamp nobody can alter after the fact.
For evidence authentication in litigation, courts can admit blockchain-anchored records under FRE 901(b)(9), which covers evidence produced by a process or system that generates an accurate result. Under FRE 902(13), machine-generated records can be self-authenticated through written certification. No live expert testimony required. That distinction matters when a claims team is trying to resolve a dispute without scheduling a forensics expert.
Files can be organized into evidence packs by case, claim, or matter, with each item marked as pre-loss or post-loss. That structure makes the chain of custody readable during discovery, without reconstructing a timeline from individual file dates.
Pre-loss documentation is the use case this workflow was built for. A risk manager runs site inspection photos through the anchoring process before filing anything. A public adjuster anchors their scene documentation on arrival, before remediation starts. A contractor photographs completed work and anchors it at project close. Each anchor is a blockchain evidence record that predates any future dispute.
The distinction between pre-loss and post-loss records is often the dispute itself. Chain of custody gaps don't show up until someone challenges the timeline. By then, going back to establish when the evidence actually existed isn't an option.
Standard file metadata doesn't hold under adversarial conditions. It's editable by design. Forensic witnesses can testify to that, which means every unanchored file is a potential vulnerability in a coverage dispute or a litigation timeline.
Anchor before the loss, not after. Risk documentation, not claim documentation.
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