🕯 Cryptocurrency exchange rates 03.09:

BTC: $110 770
ETH: $4 323
XRP: $2,83
BNB: $851
SOL: $209
TON: $3,13

Russian | Turkish | Website

🔔 Why “webhooks” matter — and how they keep apps in sync

Webhooks are the quiet messengers between apps.
When an event happens in one system (like a payment confirmation),the webhook instantly notifies another system.

This means:

• Apps update in real time
• No need for constant polling
• Smoother experience for users and businesses

We also provide webhooks — so you can test events and see how everything reacts before fully implementing.

Russian | Turkish | Website

🕯 Cryptocurrency exchange rates 09.09:

BTC: $112 074
ETH: $4 314
XRP: $2,96
BNB: $876
SOL: $215
TON: $3,12

Russian | Turkish | Website

💡 How crypto prevents double spending

Double spending means trying to spend the same money twice. In crypto, that would be sending the same coins to two different people.

Here’s how it’s stopped:

• Every transaction is recorded on the blockchain.
• Miners (or validators) confirm transactions in blocks.
• Once a transaction is confirmed, it becomes part of the chain — it can’t be reused.
• Trying to spend the same coins again will be rejected by the network.

In other words, the blockchain acts like a public ledger everyone trusts — making fraud almost impossible.

Russian | Turkish | Website

🕯 Cryptocurrency exchange rates 12.09:

BTC: $115 639
ETH: $4 544
XRP: $3,07
BNB: $909
SOL: $239
TON: $3,2

Russian | Turkish | Website

🌐 Crypto market cap nears $4T again

Bitcoin surged past $115K for the first time since August.
Ethereum trades above $4,500, while BNB hit a new all-time high over $900.
Solana climbed to $240 — its highest since January — and overtook BNB by market cap.

Meanwhile, short sellers faced $235M in liquidations in the past 24h, mostly on ETH.
The largest single liquidation: $5M on Bybit in BTC/USD.

Growing prices and liquidations show rising volatility — a sign of both renewed market strength and higher risks for traders.
The rising market cap also signals fresh inflows of capital and growing investor interest across crypto.

Russian | Turkish | Website

⌛ What “wrapped tokens” are — and why they exist

Ever seen WBTC or WETH and wondered what the “W” means?
It stands for wrapped — a token that represents another asset on a different blockchain.

Example: Bitcoin can’t move on Ethereum. But with Wrapped BTC (WBTC), you can use BTC inside Ethereum apps like DeFi.
It’s like putting your coin in a “wrapper” so it works on another chain.

Why it exists:

• To use assets across blockchains that don’t normally talk to each other
• To bring liquidity (like BTC) into ecosystems like Ethereum
• To give users more flexibility without leaving their favorite chain

Wrapped tokens aren’t new coins — they’re bridges that let existing coins travel further.

Russian | Turkish | Website

🔒 Why private keys can’t just be “reset” like passwords

In crypto, your private key is the one thing that proves you own your funds.
Lose it — and there’s no “Forgot password?” button.

Why?

Because blockchains don’t have central administrators.
There’s no support team holding a spare copy.
The private key is the only way to sign transactions from your wallet.

That’s why seed phrases exist: a human-readable backup of your private key.
If you lose both — the funds are gone, permanently.

Crypto gives full control.
But with it comes full responsibility.

Russian | Turkish | Website

👀Why block size matters — and how it affects transaction speed

Every blockchain groups transactions into blocks.
But blocks can only fit so much.

If the block size is small → fewer transactions per block → network fills up quickly.

If the block size is larger → more transactions fit → confirmations are faster (but storage grows heavier).

Bitcoin, for example, keeps blocks relatively small to stay decentralized. Other blockchains raise the limit to handle higher throughput.

Block size isn’t just a number — it’s a trade-off between speed, cost, and decentralization.

Russian | Turkish | Website

💵 What “mass payouts” are — and why businesses use them

Imagine needing to send payments to 100 people at once.
Doing it one by one would take forever.

That’s where mass payouts come in.
They let businesses send many payments in one go — quickly, reliably, and with fewer errors.

For companies, this means:
• Faster payroll or partner rewards
• Less manual work
• Better user experience for recipients

In crypto, mass payouts add another benefit: global reach.
One action — and funds arrive across borders, without banking delays.

📌 Why fee precision matters in crypto payments

In crypto, even tiny differences in payment amounts can cause problems.
If a customer sends slightly less (or more) than required, the payment may not go through automatically.

That’s why fee precision matters.
By setting exact precision for payments, businesses:
• Increase conversion (fewer failed payments)
• Reduce manual corrections
• Give customers a smoother experience

For users, it means no guessing, no confusion — just a clear amount to send.
Accuracy in payments = higher trust and fewer errors.

And with us, all fees are fully transparent — you can always check yours anytime.

📊Why does gas change every minute — and how does it work?

Let's say you make a transaction and see a $5 fee. An hour later, the same operation costs $20. What happened?

The fact is that cryptocurrency transactions are measured by computational effort, which is measured in gas.

How it works:
• Each transaction requires a certain amount of gas to execute.
• The fee is independent of the asset you're sending, and changes only based on how actively users are transacting.
• Transactions with higher fees are confirmed faster than those with lower fees.

When the network is congested (for example, during the launch of an NFT collection), everyone starts bidding for more gas to ensure their transaction goes through first. The price skyrockets.

At night, when there's less activity, fees drop.
Plan large transactions for quiet times or switch to blockchains with fixed fees.

Gas fees are not malicious. This is the market price for a place in a block.

💱Why can't you spend the same money twice in a blockchain?

In the real world, you can send the same file to two people. But you can't do that with money—it's fraud.
This problem is called double spending. And here's how blockchain solves it.

What prevents you from sending 1 BTC to a seller and then immediately sending the same 1 BTC to yourself in another wallet?
In the digital world, it's easy to copy data. But you can't copy money.

To prevent double spending, it has been proposed to combine transactions into blocks, which are then arranged into continuous chains—a blockchain.
The blockchain verifies every transaction added to the chain to ensure that the funds contained in it have not been previously spent.

Security mechanism:
• All network nodes store transaction history
• Each new transaction is checked for double-spending
• If someone tries to spend twice, the network rejects the second transaction
• Blocks are chained together, making it impossible to change the past

When accepting crypto payments, wait for confirmations (usually 3-6 blocks). Only then is the transaction irreversible, and double-spending is physically impossible.

📈$3.2 trillion: Cryptocurrency market breaks records

The total capitalization of the cryptocurrency market has reached $3.2 trillion for the first time.

Let's compare with the real economy:
• $3.2 trillion — entire cryptocurrency market
• $3.3 trillion — market capitalization of Apple and Microsoft combined
• $2.9 trillion — annual GDP of the United Kingdom

In other words, the crypto market is already comparable to the economies of entire countries.

Market structure:
• Bitcoin — $1.6 trillion (about 50% of the market)
• Ethereum — $400+ billion
• Stablecoins — $200+ billion
• Others — $1 trillion

Back in 2020, the entire market was worth $200 billion. In 5 years, it has grown 16 times.

For business, this signals that cryptocurrency is no longer a niche. It is a full-fledged segment of the global financial system that cannot be ignored.

🚀 Introducing Heleket Virtual Cards

Paying for services and subscriptions just got easier: top up your card with crypto and pay in fiat — no banks, no limits, no third-party platforms.

What the Heleket Card offers:
• Funded with crypto, pays in fiat
• Works with most services — AI services, Netflix, Spotify, ads, hosting, and more
• Top-up fee — only 3.5%
• Real-time transaction tracking
• Perfect for both personal and business expenses

How to get one:
You can issue a card online — right from your Heleket dashboard. The process takes just a few minutes.

🖥 We’ve prepared a short video guide — see how it works in action.

❤️ Learn more and get your card: heleket.com/card

👀Reminder: Heleket virtual cards are now available!

Pay for services the way that’s most convenient for you — completely anonymously and without limits.

A Heleket virtual card allows you to:

Top up your balance with crypto and pay in fiat

Pay for subscriptions and services: AI services, Netflix, Spotify, ads, hosting, and much more

Use one card for both personal and business expenses

View all transactions in real time

How to get started?

You can issue a card online in just a couple of minutes — directly in your Heleket personal account.

🔥 Details and card issuance: heleket.com/card

🛍Why are crypto fees so important for business?

Imagine: a customer wants to buy a $50 product, but the transaction fee is $15. What will they do? Exactly — they’ll cancel.

High fees kill conversion in crypto acquiring.

Compare fees:
Bank cards — 2–3%
Most crypto acquiring services — 1–1.5%
Heleket — starting from just 0.4%

Let’s calculate the real savings with a monthly turnover of $100,000:
Banks take $2,000–3,000
Crypto competitors — $1,000–1,500
Heleket — only $400

Savings up to $2,600 per month — that’s extra profit or the ability to lower prices and become more competitive.

Low fees = more happy customers = more sales.

Heleket — crypto acquiring that increases your profit.

🌛 Dark mode on Heleket is now available!

One of your most frequent requests - done! The interface is now available in dark mode.

How to enable it?
Click on the ☀️ icon in the main menu and let the magic happen!

⚠️ It’s still in beta. If you notice any bugs, write to our support - we’ll improve it together!

⭐️ Try it right now in your account: heleket.com

⚠️Dear users!

- On December 31, support is available until 9:00 PM (UTC+3).

- On January 1 — from 12:00 PM (UTC+3).

❗️The AML team will switch to a holiday schedule, so request processing may take a bit longer.

✨Happy New Year!

🎉Happy New Year 2026!🎉

Thank you - over 10,000 businesses and freelancers worldwide have chosen Heleket!
Your trust is the key factor in our development.

In 2026, we will continue improving the service: introducing new features, enhancing interface convenience, and ensuring greater platform reliability.

We hope that in the New Year our partnership will become even stronger and more productive.

Heleket Team

heleket.com