Verification
Was this registered, and when?
Drop a file to hash it locally, or paste a fingerprint. A match shows the earliest registration time — not who wrote it, or whether it is true.
Look up a fingerprint
Drop a file, or click to choose
Hashed locally with WebCrypto. The file does not leave your device.
Your credit key · a lookup uses 1 credit and opens the certificate for 2 hours.
Ledger integrity
Re-computes every record hash and checks each link to the previous entry. Any edit or deletion shows up as a break.
Your credit key · a full check uses 1 credit.
Crypto wallets
Save a wallet1 credit
Records the wallet's SHA-256 code and a fingerprinted snapshot of its public data on the ledger. If the explorer can't be reached, no credit is used.
Your credit key · every action uses 1 credit.
Check a wallet1 credit
Confirms a saved wallet's SHA-256 codes still match the ledger. If anything was altered, it is saved as evidence. If the explorer can't be reached, no credit is used.
Your credit key · each check uses 1 credit.
Read-only lookups through public block explorers. No keys, no transactions, nothing is sent from your wallet.
Paste a saved wallet code
Paste the SHA-256 code you copied when the wallet was saved. If it matches the ledger, the record has not been tampered with. If not, the information is saved as evidence. Each check uses 1 credit.
Your credit key · each check uses 1 credit.
Your saved wallets
Every wallet saved with your credit key, re-checked in one click. Each one shows its wallet SHA-256 code and the SHA-256 of its saved data. Each re-check of all your wallets uses 1 credit.