What mindset should you have when buying an NFT in this module?

As a collecting and learning exercise, with a small amount. The NFT market is volatile and illiquid. You buy to collect, be part of a community and learn self-custody — never as a return-bearing investment.

What should you NEVER do with your external wallet's seed phrase?

Type it on a website or share it with a "support" agent. The seed phrase is the master key to your wallet. No legitimate support will ever ask for it. Never type it on a site, never photograph it, never share it.

How do you gain levels (XP) with a Bursted Bubble?

By locking it in your Deblock wallet to accumulate levels over time. Locking your Bursted Bubble in Deblock earns you levels over time. The associated perks will be communicated later by Deblock — with no quantified promise.

What does the Moving Block NFT grant?

Only the "Native" status, with no leveling mechanic. The Moving Block grants only the "Native" status (a belonging badge), with no leveling system or progressive perks. It's the Bursted Bubble that unlocks levels.

How to buy an NFT on Blur: step-by-step tutorial

Introduction

Buying an NFT is a great hands-on exercise to truly understand wallets, network fees and self-custody — far more telling than a long theory lesson. This module walks you through it step by step: create an external wallet, secure it properly, buy an NFT on Blur (the most used NFT marketplace on Ethereum), and understand the Bursted Bubbles leveling system via Deblock. Important: we treat the NFT as a collectible and a learning object, never as a financial bet. Only spend what you're willing to use for learning.

Before you start: the mindset

An NFT (non-fungible token) is a unique digital object recorded on the blockchain: an image, a collectible card, access to a community. Its value is above all cultural and community-driven, not a guaranteed return. The NFT market is extremely volatile and illiquid: many NFTs lose most of their value. Here, you buy to learn and collect, not to speculate.

The golden rule: only spend a small amount you're prepared to see disappear. The goal of this module is educational — you'll handle a real wallet, sign a real transaction, and understand self-custody from the inside.

Common belief

Buying an NFT is a good way to make money quickly.

Actually : No. The vast majority of NFTs lose value, and the market is very illiquid (hard to resell). You buy an NFT for what it represents — collection, community, learning — not as a return-bearing investment. No gain promises here.

Step 1 — Create an external wallet

To buy an NFT on a decentralized marketplace, you need an external non-custodial wallet: one whose keys only you hold. The most common on Ethereum are MetaMask and Rabby. Install the browser extension (or mobile app) from the OFFICIAL website only — never via an ad or a link you received.

On creation, the wallet generates a seed phrase of 12 or 24 words. It's the master key to your wallet: whoever holds it holds your funds. Write it on paper, offline, and store it safely. Never take a photo of it, never type it on a website, never share it with anyone — no legitimate support will ever ask for it.

Install MetaMask or Rabby from the official website only.
Write your seed phrase (12/24 words) on paper, offline.
Never a photo, never on a website, never shared.
Check the URL (https) on every connection.

Key insight

The riskiest moment

90% of NFT losses come from phishing at the wallet creation/connection step: fake site, fake extension, fake support. Take your time on this step — it's the most important of the whole module.

Step 2 — Fund the wallet with ETH

On Blur (a marketplace on Ethereum), you pay in ETH, and every transaction costs network fees ("gas"). So you need some ETH in your external wallet, both for the NFT price and for gas.

This is where Deblock comes in handy: you can buy ETH inside Deblock, then send it to your external wallet's address. ALWAYS copy-paste the address (never type it by hand), and first do a small test send of a few euros to confirm everything arrives before sending the full amount.

Buy ETH on Deblock (NFT price + margin for gas).
Send the ETH to your external wallet's address (copy-paste).
Do a small test send of a few euros first.
Gas varies with network activity — check before confirming.

Try it on Deblock

Buy your ETH effortlessly

Deblock lets you buy ETH in euros easily, then send it to your external wallet for your NFT purchase. You keep control of your key at every step.

Open my Deblock account

Step 3 — Buy the NFT on Blur

Go to Blur (double-check the official URL), then connect your external wallet by clicking "Connect Wallet" and approving the connection in MetaMask/Rabby. Connecting a wallet gives no access to your funds: you only authorize the display and signing of transactions that YOU approve.

Search for the collection you want — for example Bursted Bubbles — and open the collection page. Pick an available NFT, click "Buy", check the total price (price + gas) shown in your wallet, then confirm the transaction. A few seconds later, the NFT appears in your wallet. Congrats: you've just done a real on-chain, self-custody operation.

Connect your wallet ("Connect Wallet") — check the URL first.
Open the collection (e.g. Bursted Bubbles) and pick an NFT.
Check the total (price + gas) BEFORE confirming.
Confirm in your wallet: the NFT arrives in seconds.

BlurExternal partner

View the Blur marketplace

Blur is one of the leading NFT marketplaces on Ethereum. Connect your external wallet and explore collections. Reminder: buy to collect and learn, never as a financial bet.

Open Blur

Bursted Bubbles: the leveling system via Deblock

Bursted Bubbles aren't just a collectible image. By locking your Bursted Bubble in your Deblock wallet, you take part in a leveling (XP) system: the longer you keep it locked, the more levels you gain, which will unlock community perks.

Important and transparent: the exact nature of those perks (and a possible future airdrop) will be communicated later by Deblock. So it's neither a gain promise nor a quantified return — it's a community engagement mechanism whose benefits will be specified later. You can verify and follow your Bursted Bubble via the collection page.

You can also simply lock your Bubble in Deblock to keep it safe and accumulate levels, expecting nothing more than the pleasure of collecting and being part of the community.

Key insight

Bursted Bubbles levels, plainly

Locking your Bursted Bubble in Deblock = gaining levels (XP) over time. The associated perks will be communicated later by Deblock: no quantified promise, just a transparent community mechanism.

Bursted BubblesExternal partner

Verify my Bursted Bubble

Check the Bursted Bubbles collection page to verify your NFT and follow the collection. Remember to lock your Bubble in Deblock to start accumulating levels.

View the collection

What about the Moving Block NFT?

The Moving Block NFT is different. It does not give access to the Bursted Bubbles leveling (XP) system. Holding a Moving Block grants only the "Native" status — a mark of belonging to the first Deblock community, with no leveling mechanic or progressive perks.

In other words: if you're after the leveling system, it's the Bursted Bubble you need to lock in Deblock. The Moving Block is a "Native" status badge, with symbolic and community value.

Moving Block = "Native" status only.
No leveling (XP) system or progressive perks.
Bursted Bubble = the NFT to lock to gain levels.

Key takeaways

What you should remember

01An NFT is bought to collect and learn, never as a financial bet.
02External wallet (MetaMask/Rabby): the seed phrase is the key — paper, offline, never shared.
03On Blur you pay in ETH + gas: fund your wallet via Deblock, with a test send first.
04Bursted Bubble locked in Deblock = levels (XP), perks communicated later; Moving Block = "Native" status only.