proof of word™ is a service which lets you certify the trustworthiness of promises by registering them on the blockchain. Promises are linked to smart contracts and contain a text declaration of the promise (fixed to a formula “I promise that…”) and a relative PDF certificate. Promises will be listed under your real name and it won’t be possible to delete them after registering, so please think carefully about what you promise!

Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system. A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain.

We try to keep the service to a minimum price. To work on the blockchain a certain amount of computational power is needed, we cover this power ("gas") by charging a small amount of money (X - just the amount of the gas, no overcharging).

proof of word™ lets you register promises on the blockchain that will be listed on our website and other repositories, and lets you download a certification of authenticity in the form of a PDF. For registering your promise you will need to create a nominal account and certificate it, you can do it here. The authentication process can take up to 48hrs. Authentication is based on ID so it needs to be nominal and true to your real name. You will also need a Metamask wallet to register your promise. You can download Metamask here. (At the moment, proof of word™ is compatible only with Metamask wallets. You can discover more about Metamask here). You can then fill your promise request here. Promises will be manually reviewed and certified. The certification process can take up to 48hrs. After the promise is certified it will be listed on the website under your real name and you will receive a PDF certificate.

To create a promise you will need just a proof of word account and a Metamask wallet.

No, promises are meant to be kept forever.