The adjuster arrives at the water damage claim. Kitchen ceiling collapsed. Hardwood floors warped. The homeowner has photos — plenty of them.

"When were these taken?" the adjuster asks.

"Right after I discovered the leak," the homeowner says.

But the photo timestamps show dates spanning three weeks. Some appear to be before the claimed loss date. Others were clearly taken after the adjuster scheduled the inspection. The metadata has been stripped from half the files.

This scenario plays out daily in property claims. Digital evidence exists, but proving when it was created becomes the bottleneck. Was that crack photo taken before or after the earthquake? Did the roof damage predate the hail storm?

File timestamps can be changed with basic software. Metadata gets stripped when photos are uploaded to messaging apps or cloud storage. The original chain of custody breaks the moment evidence moves between devices.

Courts can authenticate digital evidence under FRE 901(b)(9) when it's produced by "a process or system that produces an accurate result." But that requires establishing the reliability of the timestamp — which becomes impossible when the metadata is compromised.

A blockchain anchor solves this authentication gap. The SHA-256 hash of each file gets recorded on an immutable public ledger with a cryptographic timestamp. This creates evidence that can't be altered retroactively.

For the adjuster, this means clear temporal boundaries. Evidence anchored before the loss date carries different weight than evidence created afterward. For the forensic consultant, it means chain of custody that survives file transfers, platform uploads, and format conversions.

The evidence will outlive the claim. The anchor makes sure it can prove when it existed.

Pre-loss documentation isn't just good practice — it's the difference between admissible evidence and disputed metadata. When coverage decisions hang in the balance, neutral temporal authority isn't optional.

ProofLedger provides dual-chain verification on Polygon and Bitcoin networks. Your files never leave your device. Only the hash gets anchored.