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# System prepended metadata

title: DragonStake contribution to Sentinel dVPN

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# DragonStake contribution to Sentinel dVPN

## Long term support

DragonStake joined the project right after it was lauched. Since them we have been active on all the testnets and actively participating on Sentinel's channels. We enjoyed helping other validators and we met really good friends in that process.

## Meetups and speeches

We tirelessly talked about Sentinel in each Proof of Stake speech we have participated in. We always remark that Sentinel is one of our favorite projects and we encourage people to install and test the movile app. Many people of our audience gave us very good feedback from those actions.

We have recorded no less than a docen videos with different youtubers. We use to talk about PoS in general and then we focus on the interesting projects of our portfolio.

In one of our last interviews we had the chance to talk with Exidio CEO

- Exidio interview: https://twitter.com/DragonStake/status/1381882135674519554


- Last speech: https://youtu.be/eC1dgvQGYys?t=1190



## Software development

- [DAppNode](https://dappnode.io/) Sentinel Package

We developed this package that allows any DAppNode user to install her own dVPN node to share her bandwith with just one click. We tested it and we got it working during the testnet phase. It is our intention to release a MainNet version of the same package.

## Tech reports

We feel really pround of being the protagonist of the First 34% Attack in the history of Tendermint BFT.

This is the full story article:

[First 34% Tendermint Attack Ever](https://blog.derfredy.com/first-34-tendermint-attack)

We have contributed in the past to strengh the validator set with our operation knowledge.

- Secure validator: [securityTips.md](https://github.com/Colm3na/Sentinel/blob/master/securityTips.md)
- Anti spam: [antiSpam.md](https://github.com/Colm3na/Sentinel/blob/master/antiSpam.md)


## Community engagement

The power of the DragonStake's community is shown in its numbers:
250M dVPN delegated from 200 different accounts.

Those numbers means that our education and our "spread of the word" did have a great influence. We feel proud of having the largest Hispano community supporting our activities.




