Proof of certification now possible with SIGN web app
Sign web app is now live on mainnet and this allows you to prove whether a particular file exists or not on Waves blockchain. Developers behind SIGN app have churned out v0.9.3 that adds ability to revoke certification.

Also, the app gives enhanced warning about saving seed on initial connection. Other than that, many user interface related bugs. SIGN web app is using Waves Signer to connect your account and sign all transactions. To import an existing account, you will have to first add it in waves.exchange.
SIGN web app will never ask you to enter your private key as they are managed by Waves exchange. So, if a similar app is asking you to enter your private key, it is likely a scam.
To get started, enter your password or create a new account. If you already have an account, they will be listed on next screen. Then, you will be connected and be able to use the application. After that, click on manage accounts to access Waves exchange and get your recovery account seed. Make sure to write it down and keep it in safe place.

Related topics
- Routefire team joins Coinbase cryptocurrency exchange
- Dash coin delisted from Bittrex cryptocurrency exchange
- Virgil Capital LLC funds frozen by SEC and charged with fraud
- Livecoin cryptocurrency exchange hacked, 120 Bitcoin, 361 Etheruem and 236 BCH stolen
- How to claim TWT airdrop by Binance?
- Ledger Database leak: customers getting phone calls asking to KYC
- Singapore Exchange buying 10 percent stake in DBS Digital Exchange
- 8 Famous Types of Cryptocurrencies
- Compulsory KYC on French Cryptocurrency Exchanges
- NEM airdrop supported by Binance
- Coinbase Pro experiencing latency issues
- Grin blockchain experiencing 51-percent attack
- TabTrader for Windows PC to be released soon
- Komodo Platform to secure Gleec coin network against 51-percent attack
- Never share backup seed phrase of cryptocurrency wallet with anyone