I built a tool to help clean up unused Solana accounts, and today we hit a milestone: over 200 unused accounts closed with 0.48 SOL total volume reclaimed!

Why This Matters

• Get Your SOL Back: Reclaim locked funds from unused token accounts

• Network Optimization: Reduce blockchain state bloat

• Better Performance: Help validators run more efficiently

How It Works

Visit claimyoursols.app:

1. Connect your wallet

2. Scan for closeable accounts

3. Close unused accounts (empty accounts, unwanted tokens, mint tokens you created and you don’t want anymore)

4. Reclaim your locked SOL

What you can close:

• Empty token accounts

• Tokens you no longer need

• Test tokens you created during development

• Unwanted airdropped tokens

For Developers

// Account closure process
const closeInstruction = createCloseAccountInstruction(
  accountToClose,
  destination, 
  owner
);

Open Source

The entire project is open source at github.com/dawar2151/claimyoursols.app - full transparency and community contributions welcome. You can audit the code, submit improvements, and verify exactly what it does before connecting your wallet.

⭐ If you try it or like the project, please star it on GitHub! ⭐

Join the Movement

• Clean up your unused accounts

• Help optimize the Solana network

• Reclaim your locked SOL

Let's keep the momentum going! 🌟

What does that actually mean? And is the contract truly verified in such cases?

Let’s break it down below.

let's start with some context:

The concept of upgradable smart contracts on Ethereum began emerging around 2017, with more formal and secure patterns being adopted by 2018.

Many decentralized applications (DApps) started using this pattern to prevent and mitigate vulnerabilities that could appear in the future.

What Are Upgradable Smart Contracts?

Upgradable smart contracts follow a simple architecture:

• A proxy contract holds the data (storage)

• An implementation contract contains the business logic

When you deploy the proxy, it stays fixed. However, you can upgrade the implementation contract at any time—without changing the proxy address or notifying users. This makes upgrades seamless, but also potentially dangerous: a malicious owner could swap in harmful logic without anyone noticing.

As shown above, users always interact with the proxy. This proxy stores both the data and the reference to the implementation address.

The issue is: most users only check if the proxy is verified, and ignore the implementation. This gives a false sense of security, as the real logic could be unverified or even malicious.

Real-World Examples

I checked several popular token tools. Most of them only verify the proxy but not the implementation contract.

BulkSender.app

The proxy contract is verified, but the implementation is not:

CryptoSender.com

Same story: the proxy is verified, the implementation is not.

BulkSendTokens.xyz

✅ In this case, both the proxy and implementation are verified, which is how it should be:

Why This Matters

When the implementation contract is unverified, users can't see what logic is being executed. That means:

• Hidden service fees could be added

• Backdoors might exist

• Logic could be changed at any time

If both contracts are verified, everything becomes transparent: you can inspect the code, see the upgrade logic, and ensure there's no malicious behavior.

✅ Stay Safe

• Always check both proxy and implementation contracts are verified

• Don’t trust a verified proxy alone—it holds no logic

• Be cautious with tools that don’t verify everything

Follow My Work

I'm building secure tools in the blockchain space—follow me for updates:

🐦 X (Twitter): @TheBlockExperts

🛠️ Blockchain Developer Tools I Built

• X-Wallet: An Airdrop & Asset Management Ethereum Wallet

• Bulk Sender for Ethereum

• Bulk Sender for Solana

Stay safe out there 👊

Originally published on https://bulksendtokens.xyz

What does that actually mean? And is the contract truly verified in such cases?

Let’s break it down below.

let's start with some context:

The concept of upgradable smart contracts on Ethereum began emerging around 2017, with more formal and secure patterns being adopted by 2018.

Many decentralized applications (DApps) started using this pattern to prevent and mitigate vulnerabilities that could appear in the future.

What Are Upgradable Smart Contracts?

Upgradable smart contracts follow a simple architecture:

• A proxy contract holds the data (storage)

• An implementation contract contains the business logic

When you deploy the proxy, it stays fixed. However, you can upgrade the implementation contract at any time—without changing the proxy address or notifying users. This makes upgrades seamless, but also potentially dangerous: a malicious owner could swap in harmful logic without anyone noticing.

As shown above, users always interact with the proxy. This proxy stores both the data and the reference to the implementation address.

The issue is: most users only check if the proxy is verified, and ignore the implementation. This gives a false sense of security, as the real logic could be unverified or even malicious.

Real-World Examples

I checked several popular token tools. Most of them only verify the proxy but not the implementation contract.

BulkSender.app

The proxy contract is verified, but the implementation is not:

CryptoSender.com

Same story: the proxy is verified, the implementation is not.

BulkSendTokens.xyz

✅ In this case, both the proxy and implementation are verified, which is how it should be:

Why This Matters

When the implementation contract is unverified, users can't see what logic is being executed. That means:

• Hidden service fees could be added

• Backdoors might exist

• Logic could be changed at any time

If both contracts are verified, everything becomes transparent: you can inspect the code, see the upgrade logic, and ensure there's no malicious behavior.

✅ Stay Safe

• Always check both proxy and implementation contracts are verified

• Don’t trust a verified proxy alone—it holds no logic

• Be cautious with tools that don’t verify everything

Follow My Work

I'm building secure tools in the blockchain space—follow me for updates:

🐦 X (Twitter): @TheBlockExperts

🛠️ Blockchain Developer Tools I Built

• X-Wallet: An Airdrop & Asset Management Ethereum Wallet

• Bulk Sender for Ethereum

• Bulk Sender for Solana

Stay safe out there 👊

Originally published on https://blog.bulksendtokens.xyz