Parent
Family photo archive on an external HDD
Five percent recovery blocks; the yearly verify found and repaired two flipped sectors.
Coming SoonPro editionFiles & transfer
Verify & Bit-rot Guard
Hash manifests with scheduled re-verification and Reed-Solomon recovery blocks that repair silent corruption.
The problem
Checksum tools detect corruption but cannot fix it. MultiPar can, but through a 2000s UI with no scheduling or alerts.
Features
- BLAKE3 manifest per folder, verified on a schedule
- PAR2-compatible recovery blocks sized to a chosen redundancy
- Repair in place with a report of which blocks were rebuilt
- Alerts when a verify finds drift
- Integrates with Copy Engine so copies land with a manifest
Who it is for
Admin
VM archives on a NAS
Monthly verification with an alert on drift.
Studio
Delivering files to a client
The manifest ships with the files; the client verifies on receipt.
Benefits
- Detect silent corruption before the backup copies it
- Repair without a second copy
- Scheduled proof that archives are still intact
Built to be trusted
- Manifests are signed and stored beside the data and in the Reports folder
- Repair writes to a new file and swaps after verification
Good to know
Recovery blocks cost space (typically 5 to 10 %). For VM stores on ReFS mirrors, integrity streams are the better tool and the UI recommends them.
Under the hood
For technical readers
- BLAKE3 manifests
- GF(2^16) Reed-Solomon in PAR2 layout with SIMD
- FSCTL_GET_INTEGRITY_INFORMATION
Related products
Works well with
ReadyFree edition
Copy Engine
Files & transfer
Unbuffered, journaled, verified copying that survives disconnects and tells the truth about progress.
Coming SoonPro edition
Sync & Mirror
Files & transfer
Change-journal driven sync that knows what changed in seconds and never deletes without a preview.
ReadyFree edition
Job Engine
Platform
The shared runtime: pause, resume, cancel, crash-safe journal, honest ETA, sealed reports.
Coming Soon
Notify me when Verify & Bit-rot Guard is ready
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Questions now? Contact our team.