How to verify

Four checks, all offline except the ledger lookup.

1. The text

sha256sum <file>        # must equal the hash in the registry row

2. The Buoy tick

Buoy is a hash-chained temporal ledger. The tick id in the row names the entry whose note carries the same sha256; verify at buoy.dustforge.com.

3. The Bitcoin timestamp

pip install opentimestamps-client
ots verify <file>.ots         # with <file> beside it; "pending" until the calendar aggregates, then names the block

4. Sealed material

Where a registration seals item texts, only their sha256 is published at registration. When results publish, the revealed file must hash to it.

5. Kodiak certificates

Kodiak results list certificate ids; each certificate's chain hash and Buoy tick are inside the saved JSON.