Land Ledger
Daily fingerprints
Once a day the ledger turns every record written that day into one long code, its fingerprint, and links it to the day before. If anyone later changes or removes a record from that day, or from any earlier day, the code no longer comes out the same.
Keep a copy
A fingerprint only protects you if you hold your own copy. Then nobody can quietly change both the records and the published value.
- Save today's list. Choose Download the list, or copy the latest code and its day.
- Put it somewhere you trust, such as an email to yourself or a note on your phone.
- Come back any time and check it with the box next to this one.
Check a fingerprint you saved
No fingerprints yet. The first one is written the day after the first record.