
Blockchain web3 AI enthusiast || Ambassador: @OasisProtocol @MidnightNtwrk || Content creator || Dreamer || Storyteller || @ChelseaFC fanboy
Kolkata, India
Joined April 2023
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- Following358
- Followers914
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DC, Marvel style.
Must admit, Ghibli style is good but Marvel style much better, it simply rocks 🤘. In my opinion.
Arnab Kar retweeted
1/
New Privacy Talks just dropped 🎙️
✔ Meta was ordered to pay $25B over its privacy claims
✔ The big players in the AI landscape labs signed a White House accord with no penalties and no public audits
✔ Europol says over 6M BTC sit in wallets with exposed public keys
w. @matejanez & @markowifk
Arnab Kar retweeted
A private key could be extracted without a single transaction being recorded onchain.
That was the security issue discovered while building on @OasisProtocol’s Sapphire.
🧵🧵
oasis-network:native
Arnab Kar retweeted
Most MEV protection is a patchwork of half fixes
We’re building the alternative
privana.finance
Arnab Kar retweeted
MEV attacks can quietly cost DeFi users money by exploiting their transactions before they settle.
@OasisProtocol is helping address this through @PrivanaFinance with a potential Q1 2027 public release, which uses confidential computing to keep swaps away from the public mempool, where bots typically monitor pending trades.
$ROSE
Arnab Kar retweeted
1/ Decoded: clean hands.
On a public blockchain, proving your funds are clean usually means showing where they came from, and that puts your whole financial history on display.
Arnab Kar retweeted
Chain of champions, spotted all over the crowd at the European Championships 🚴
The riders are done for the season, and focus is now on Privana, a private way to use your money built on Oasis tech.
It's in closed testing, and you can sign up for the waitlist here:
privana.finance/
Arnab Kar retweeted
1/ Many decentralized apps are only decentralized up to the point where they call their backend.
The contracts are onchain and anyone can inspect them, while matchmaking, AI features and reward eligibility often run on an ordinary server.
Arnab Kar retweeted
The Privana thesis in three lines.
> Finance is coming onchain
> On a blockchain everything's public
> Privana makes it as private as your bank
Arnab Kar retweeted
1/ Decoded: The Draw
2/ Most prize draws come down to trust. Someone runs the draw, announces the winners, and everyone assumes it only ran once.
For the Challenge Hub, we wanted a draw that nobody had to take on trust, including us.
Arnab Kar retweeted
15K+ sign-ups. 5 cycling races. 20M+ impressions.
The @OasisProtocol cycling prediction challenge brought fans together across the world, and the final raffle ran on Oasis Sapphire so anyone could verify the results onchain.
Now, attention turns to @PrivanaFinance. Privacy-first DeFi is next.
Full recap: oasis.net/blog/oasis-x-slove…
oasis-network:native
Arnab Kar retweeted
We've been cooking 🧑🍳
On Friday we sat down for a community call to show you what's been on the stove.
Nino shares where Privana stands ahead of its rollout, and Ahmed walks through how we drew the Challenge Hub winners in a way anyone can check 🔥
Watch the full call:
Arnab Kar retweeted
Internal auditing started... 💪💪
Cooking something genuinely novel @PrivanaFinance
1. Programmable policies for your assets
2. Multi-chain key derivation inside TEEs
3. Liquidity pools across chains *with privacy*
4. All app services fully verifiable via ROFL
None of this exists anywhere else in DeFi.
Arnab Kar retweeted
Our first Challenge Hub season with the Slovenian Cycling Federation, in numbers:
112,800 visitors
15,310 new sign ups
5,801 players
20,000+ raffle tickets
10 winners
Plus a prize draw you can check for yourself. Check out the full season review:
oasis.net/blog/oasis-x-slove…
Arnab Kar retweeted
1/ Data rarely leaks from the system everyone is worried about, it rather leaks at the seams between systems.
The database is encrypted and access controlled, then the same records get copied into logs, analytics tools, support tickets and vendor dashboards, each with its own rules.
Arnab Kar retweeted
- 5 races
- 6,000 players
- 35,000+ predictions
One season with @KZS_cycling, built by everyone who showed up. Thank you 💙
Arnab Kar retweeted
The Challenge Hub season is over, and the winners have been drawn 🥳🥳🥳
One lucky winner takes home the Canyon Endurance CF 5, but there are more surprises across the prize list. Thank you to everyone who spent the season picking podiums with us and the Slovenian Cycling Federation 💙
Here is the draw, start to finish ⏬
Arnab Kar retweeted
1/ Decoded: connecting rooms.
Most privacy in crypto lives inside one app such as a private token, a private pool or a private vote.
The moment you want to use that with anything else, you step back out into public, which is a bit like a hotel with soundproof rooms and glass corridors.
Arnab Kar retweeted
1/ Decoded: the envelope.
Run an auction on a public blockchain and every bid is visible the moment it is sent.
The winning strategy becomes waiting until the last second and bidding one unit more than the last person, which works well for snipers and badly for everyone else.
























