In our previous post The karbon14 demo we tested the demo working over the Ethereum Ropsten network, but Karbon14 solution needs a Smart Contract crypto platform to be able to work, which shouldn`t necessarily be Ethereum.

Today we want to prove that the above key point is valid for other networks than Ethereum, and we focused on deploying the demo fully working over RSK.

RSK is the first open-source smart contract platform with a 2-way peg to Bitcoin that also rewards the Bitcoin miners via merge-mining, allowing them to actively participate in the Smart Contract revolution. RSK goal is to add value and functionality to the Bitcoin ecosystem by enabling smart-contracts, near instant payments and higher-scalability.

Solidity for Smart Contracts

Since the RSK platform also let us develop our Smart Contract on Solidity, we deployed the same Karbon14 Smart Contract, but this time on the RSK Testnet.

We had success, and the deployment was successful in the first try.

The contract was deployed at: https://explorer.testnet.rsk.co/address/0xb33cdfe57e806f66819722680324e55d0cd18441

Karbon14 UI demo adaptation

Since the new contract was deployed, and the RSK can also be used with Metamask, as you can read on the RSK Wiki, next step was to adapt the UI for working on the new network.

This step was also easier than expected and achieved with only 1 commit diff between our master and rsk branches on GitHub demo repository.

Karbon14 UI demo deployed

Once adapted the UI, we deployed it on: https://rsk.karbon14.org

We used the RSK Tesnet Faucet to have some RBTC balance on our Metamask wallet accounts and started testing the Karbon14 Demo.

We created some Scribes, and also Requested some Proofs validations in order to test the complete flow. The result was just great, all it’s working as expected and just as well as in the Ethereum version.

Final notes

Karbon14 solution is network agnostic, and with this exercise we prove it. A new platform like RSK can work great with our solution and that is because of the potential related to the Smart Contracts.

We will let deployed the RSK demo so you can play with it also, and remember that if you want a step-by-step guide, you have our previous post. And for the RSK questions, you will be founding the answers in the RSK Wiki.

For further information, you can visit https://karbon14.org

Or contact us in any of our social media

Telegram https://t.me/karbon14

Twitter https://twitter.com/k14project

Facebook https://www.facebook.com/k14project

Github https://github.com/karbon14

Instagram www.instagram.com/k14project

Google+ https://plus.google.com/+k14project

Karbon14 is the first Startup using the benefits of blockchain technology to create Life Certificates which will allow users to validate proof of life that could be used for financial services such as receiving pension benefits and annuity payouts among many other things.

The goal is to offer an efficient way to create life certificates making formalities quicker and more convenient, at the same time making all of your private information more secure. A life certificate is a document that cannot be altered and can be used for companies or entities when they need proof that you are still alive or in some instances when a valid form of identification is required.

Today, let’s see how could look the process of creating a Karbon14 Life Certificate by giving a walk through our project demo, which is public and available at http://demo.karbon14.org

Smart Contracts

We have deployed to the ETH Ropsten network the following contract:

• https://ropsten.etherscan.io/address/0xfDd5EfA1e625Ef62B34AfA0cD1BB4394bD18894B#code

Let’s see and analyze the contract code:

• We have two structs one for a Proof and the other for the scribe.
• We have some getters and setters functions to retrieve and add scribes to the Karbon14 ecosystem
• Also, we have getters and setters functions to add and get users Proofs to the Smart Contract.

* Note that the setProof method is public, so all can add their test scribes and play with the demo *

Karbon14 demo UI

Now it’s time to introduce our demo UI that interacts with the above detailed and described Smart Contract and how to successfully ask and get your validated Life Certificate.

Our demo UI is a dApp that is developed under the latest frontend technologies and makes use of the well known Metamask Chrome extension. As all the Karbon14 project is open source and source code can be found it on our official Github.

According to your current Metamask account, and once the UI checked the contract, you could be two types of user: a scribe or a client.

• As a user of the platform, you will be able to check the Scribes available on the system, create new Proof’s requests, see your past approved proofs, and see the state of the Incoming validated Proof’s requests once their results came back from a scribe.
• As a Scribe, you will be able to see the list of the Pending Approval Proof’s sent by the clients of the platform that choose you as the one in charge to verify their data. You could approve or deny the proof according to the received data.

In order to test the demo, you can have multiple Ropsten accounts in your Metamask Wallet, and request some ETH from Ropsten Faucet.

By clicking on About.., you will be calling the About Karbon14 modal, and as the second tab, you will have a form that will be let you become a scribe. Once the transaction is confirmed, you will notice a change in the UI, and fewer sections available on the left Nav Menu, since you will be waiting for incoming Proof of Life validations requests.

Now is time to switch your Metamask account to a normal user again to create a New Proof of Life validation request, and send it to your scribe.

New Proof of Life

As a normal user that wants is first or a new Proof of Life, you need to go to the New Proof of Life section and complete the KYC forms with the info requested. This documents and data will be sent to the scribe that you select, for a proper validation by the Crypto Scribes.

For demo purposes, select the Scribe you that you created previously, and send it to you, so you could be validating it later.

To send the Proof, you need to sign it so Metamask extension will open. Once you sign, the proof will be sent to the scribe.

Pending Approval Proofs

Once you sent the Proof, you need to become again a Crypto Scribe to been able to review it. For doing that, change again your Metamask account to the one which you became a scribe.

You will notice that you have a pending approval Proof, and if you enter into it, you will see all the data that you completed as a user, the validation status of the signature and as a Crypto Scribe, you will be able to Reject or Approve the Proof.

If you decide to Approve it, you will also be required to sign the Proof, but in this case, as a Scribe.

Incoming approved Proofs

If you switch as user again, you will be able to navigate to Incoming Proofs section and will have listed the Proof approved by the Crypto Scribe you selected.

Now, if you take a look to the above capture you will notice that you have two actions:

• Save the form data
• Record Proof on the Smart Contract

As you noticed in the previous step, the Scribe not stores or saves the user data, not even where persisted them on Smart Contract by recording the Proof, so in order to generate the hash again, you as the user will be the one in charge to preserve your form data because is personal. If you click on download it, it will be saved where you choose with the hash as name, and .k14 extension.

The other action available is to record your Proof on K14 Smart Contract. It performs two actions:

• First, it saves on IPFS info about the Scribe that approved the Proof, and also its signatures.
• Then, it records the Proof hash and the IPFS reference to retrieve again the Scribes data saved in the first step, on the Karbon14 Smart Contrat. As you can check in the code of the contract, a user can generate as many Proofs as needed, and new ones will be added to user Proof array.

Explore your approved Proofs

Once you recorded one or more Proofs on Karbon14 system, you will be able to display that Proof data again at any time.

Since no user data is stored on the Karbon14 side, showed info will be only the Crypto related one rewarding that Proof. Also, the IPFS info is fetched to show the Scribe info and the Signed by the Scribe hash.

As you can notice, at the bottom, there is an option to upload the form data that you saved previous to record the Proof. If you load it, you will be able to saw again and navigate all the info which you used to complete the KYC form.

This will happen only if you upload the correct .k14 file, cause if not, the resultant hash generated from the data file will not match with the Proof one.

Final notes

To conclude this post, we want to share some final notes. This is a demo that covers the very basic functionality, and it is working on the Ropten Ethereum Network. It wants to show the power of the Smart Contracts and the potencial of the Karbbon14 solution running throw it.

When the final version will become fully working, most things will change, e. g. the minimal number of Scribes that be needed to validate a Proof will be at least 3, scribes will be chosen according to rules by the Karbon14 node, and much more goodness that we have planned and designed but not implemented yet.

All code and UI is public and it is available on our GitHub.

For further information, you can visit https://karbon14.org

Or contact us in any of our social media

Telegram https://t.me/karbon14

Twitter https://twitter.com/k14project

Facebook https://www.facebook.com/k14project

Github https://github.com/karbon14

Instagram www.instagram.com/k14project

Google+ https://plus.google.com/+k14project

On November 1st the Crowdsale was launched and now you can buy your Karbon14 tokens. In order to help you with that, we are going to show you a How-to video, you will see step by step instructions about how to add the k14 currency to your wallet and how to be part of our community and contribute with us.

It’s very easy and simple. Remember that you need to have previously installed Metamask. You can also try it before actually doing it on Ropsten Demo and when you are ready to contribute on the official website below we leave the link:

https://crowdsale.karbon14.org

For further information, you can check our Medium post

Contact us in any of our social media

Telegram https://t.me/karbon14

Twitter https://twitter.com/k14project

Facebook https://www.facebook.com/k14project

Github https://github.com/karbon14

Instagram www.instagram.com/k14project

Google+ https://plus.google.com/+k14project

The crowdsale is the core of an ICO project. It is an event where a company with crypto currency project sells part of its tokens in exchange for money. It is a process of raising funds where people give small contributions in order to create a larger contribution.

Being a part of Karbon14’s community means joining the first decentralized platform that creates a Proof of Life in the blockchain. This project is exploring a field on the cutting edge of technology, where the priority is to keep the sensitive information safe and secure, and you can be a part of it!

Karbon14

Today’s focus on the user experience and user satisfaction suggest that full transparency with your community creates stronger and more profitable relationships that allow you deliver on your revenue goals.

Transparency is one of our priorities, we want to make sure our community is satisfied with our service and they can trust us. That is why anyone can check all of our contracts at https://github.com/karbon14/crowdsale-contracts

In the repository, you will find all of the information related to Karbon14’s Smart Contract.

You can also check our contracts here:

• Crowdsale: https://etherscan.io/address/0x8973db8731b364985ffa4d6f579e0d1a022ad6e6
• Karbon14 Token (K14): https://etherscan.io/address/0x2fb2401b7498f5467b20cebfba11acdf4fa2fdad

F.A.Q

Here are some of the most frequently asked questions, if you want further information you can just contact us.

• When does the crowdsale start?

The crowdsale opens on November 1st, 2018 GMT+0

• When does the crowdsale end?

The crowdsale closes on May 1st, 2019 GMT+0

• What countries are allowed to participate?

At the moment all countries can participate

• What are the contribution options? What is the cost per token?

The best option to contribute is through the ethereum token. The exchange is 1 ETH = 30,000K14.

• When do I receive my K14 tokens?

You will receive your tokens as soon as you purchase them.

• What are the minimum and maximum contribution amounts?

We did not establish any minimum or maximum amount. Feel free to buy as many K14 tokens as you want.

• Soft cap

15,000 ETH

• Hard Cap

60,000 ETH

• Total tokens

3,600,000,000 K14

• Total tokens of crowdsale

1,800,000,000 K14

• What is the platform and token type?

The platform is ethereum and the token type is ERC20

• Distribution

3% - Airdrop

7% - Marketing

10% - Founders

30% - Development

50% - Community

Warning

If you want to be a part of our community and contribute to us, please use the official website. For your security, avoid other non official sites.

Link to the crowdsale: https://crowdsale.karbon14.org/

Join our community:

Website: https://karbon14.org/

Telegram: https://t.me/karbon14/

Twitter: https://twitter.com/k14project/

Facebook: https://facebook.com/k14project/

LinkedIn: https://www.linkedin.com/company/karbon14/

Github: https://github.com/karbon14

Crowdsale: https://crowdsale.karbon14.org/

Welcome to Karbon14 the new platform on which you will trust yours proofs of life.

Karbon14 goal is to offer the possibility of creating the Proof of Life in a fast and simple way. A Proof of Life Certificate for Karbon14 consists of information provided by the user, approved by Karbon14’s crypto scribes and persisting in the blockchain.

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Homepage https://karbon14.org/

Whitepaper https://whitepaper.karbon14.org/

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