Sergej N. Sakac

Founder, Master Union
Exploring real world validation systems
Bridging physical and digital worlds

[Sergej N. Sakac @sergejns_]

The encrypted file is public. The ability to understand it is not.

SoverStore Drops: paid digital releases where a contract records who paid and cryptography determines who can open the file.

No backend. No accounts. No server-side access gate.

Live on the @Polkadot Products Devnet.

[Sergej N. Sakac @sergejns_]

@KusamaShield @Polkadot The bytes live on collators somewhere, and they’re public anyway.

What doesn’t exist anywhere is the plaintext, the keys, or a customer list.

Confiscating the encrypted blob gets you exactly what anyone can already download.😎

[Sergej N. Sakac @sergejns_]

Worth saying what this demo did not need.

No server. No database. No account system. No key-management service. No centralized frontend. No app store review. No conventional hosting stack.

That list of absences is the real value of @Polkadot Products capabilities.

The same capabilities could support paid research, private reports, event access, software releases, premium documents, and other one-off digital products where access belongs directly to the buyer.

SoverStore Drops is simply one application of those capabilities.

[Sergej N. Sakac @sergejns_]

The encrypted file is public. The ability to understand it is not.

SoverStore Drops: paid digital releases where a contract records who paid and cryptography determines who can open the file.

No backend. No accounts. No server-side access gate.

Live on the @Polkadot Products Devnet.

[Sergej N. Sakac @sergejns_]

@Polkadot Working demo:

https://t.co/2ymFCfARN3 - open in the Polkadot Desktop App
https://t.co/TNBgvWN8iR - open in a regular browser

To buy a Drop, claim test PAS from the Paseo faucet and fund your connected wallet.

[Sergej N. Sakac @sergejns_]

@Polkadot SoverStore Drops is currently a working demo on the Polkadot Products Devnet.

You can try it through the Polkadot Desktop App at https://t.co/2ymFCfARN3.

To purchase a Drop, claim test PAS from the Paseo faucet and fund your connected wallet.

[Sergej N. Sakac @sergejns_]

The encrypted file is public. The ability to understand it is not.

SoverStore Drops: paid digital releases where a contract records who paid and cryptography determines who can open the file.

No backend. No accounts. No server-side access gate.

Live on the @Polkadot Products Devnet.

[Polkadot @Polkadot]

Aren't we all tired of the gazillion logins, installs, and new accounts demanded by every single service we use?

Gavin Wood recently presented a paradigm shift in how everyday technology could look:
Owned by yourself, smooth and simple UX, app previews before you download, and no logins.

In the next step, Gavin Wood will lead the technical side of delivery directly at @paritytech, taking the proofs of concept the Parity team has laboured over and hardening them into robust, open-source software that people can actually use.

Learn more about the Polkadot and Human Web3 vision below. 📺

[Polkadot @Polkadot]

Have you browsed through the apps deployed on the Polkadot Products Devnet?
Every developer building on the devnet has the option to either keep their build unlisted or publish it to 'Browse'.

1. Open https://t.co/3L2M0RpulC
2. Which application is smiling at you? Yes, open that one.
3. A few to try: DotNS to register your own .dot domain, Playground to build a sample app in a guided environment or Mercado, a dummy marketplace.

See what's possible for yourself.

Next step: Link your builds in the comments 👇

[Sergej N. Sakac @sergejns_]

@paritytech I’ve already used several of these capabilities in my own application.

They are clearly explained, modular, and surprisingly easy to integrate. This is what product infrastructure should feel like: powerful underneath, simple for developers.

[Sergej N. Sakac @sergejns_]

@Polkadot https://t.co/5WVnBxWGwI - a demo showcasing the capabilities of Levity.

[Sergej N. Sakac @sergejns_]

SoverStore stores encrypted files on the @Polkadot Bulletin Devnet.

Uploading requires the Polkadot Desktop App paired with the Polkadot Mobile App, plus PAS for network fees.

Recovery is simpler: scan the QR code with any phone, retrieve and decrypt the file locally, then preview or download it.

No wallet required.

[Parity Technologies @paritytech]

Most "decentralized" apps store their files on S3 and host their front ends on Vercel. IPFS gets closer but content disappears when nobody is pinning it.

Levity is @Polkadot's decentralized hosting and storage layer for Products, comprising Bulletin Chain and HOP Content addressed by hash. Authorized writes. Peer-to-peer reads. No CDN. No central host decides what stays up.

Web3 apps cannot compete with Web2 on experience if the infrastructure beneath them is centralized. Levity is the missing layer.

https://t.co/qIdqryZwrp

[Sergej N. Sakac @sergejns_]

@NontonF2086 @captain_m1k @Polkadot Clearly, one of us is missing the bigger picture.

Let’s revisit this in a year.

[Sergej N. Sakac @sergejns_]

@Blank_Oncha1n @Polkadot Ask the media industry.

Models ingested twenty years of their output, and by the time they reached for copyright, the value had already moved.

Realisation moves slower than extraction.

That is why the solution must be architectural, not merely legal.

[Sergej N. Sakac @sergejns_]

The advantage is the context, feedback and processes that make AI better.

If they accumulate on someone else’s infrastructure, so does your advantage.

@Polkadot's new Devnet points elsewhere: sandboxed apps, local keys and decentralised storage.

Not your chain, not your context.

[Sergej N. Sakac @sergejns_]

Try the working demo:
https://t.co/mlQ2TRbjBj

[Sergej N. Sakac @sergejns_]

SoverStore, the decentralized private data storage project, is now live on the @Polkadot Products Devnet.

Not a single part of the application is centralized.

Publish an encrypted file and share the QR code with anyone to recover it.

[Polkadot @Polkadot]

https://t.co/yitjmZw3gJ

[Polkadot @Polkadot]

https://t.co/yitjmZw3gJ

[Sergej N. Sakac @sergejns_]

@RepublikLabs I stored the file. You can access it easily by scanning the QR code.

[Sergej N. Sakac @sergejns_]

@RepublikLabs Scan this QR code with your iPhone to instantly preview a file stored on Bulletin Chain.