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2. Intermediate Course

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  1. 1. What is Layer 0 in Blockchain technology?
  2. 2. What is layer 1 in Blockchain?
  3. 3. Second layer (layer 2) - what is it? 
  4. 4. Blockchain and its layers - What is layer three in Blockchain (L3)?
  5. 5. Ethereum 2.0 - What is it? 
  6. 6. Ethereum Proof-of-Stake (PoS) - what should you know?
  7. 7. Ethereum London Hard Fork - what is it ? 
  8. 8. What is the Ethereum Name Service (ENS) and how does it work?
  9. 9. Arbitrum: Ethereum scaling solution - everything you need to know
  10. 10. Polygon 2.0 - the value layer for the Internet
  11. 11. Ethereum ERC-4337 - what is it and how does this standard work?
  12. 12. What is an ERC20 token and how is it created?
  13. 13. The ERC-721X VS ERC-721 Standard – Key Differences!
  14. 14. What is cryptocurrency burning?
  15. 15. Examples of the use of WEB3 on the blockchain
  16. 16. What is Web5? 
  17. 17. Blockchain Oracle - what are oracles? 
  18. 18. Polkadot - Decentralized blockchain and DOT cryptocurrency
  19. 19. Polkadot Parachain - Next-generation blockchain
  20. 20. Interoperability in the world of cryptocurrencies and blockchain
  21. 21. What is Blockchain sharding?
  22. 22. Mainnet versus Testnet on the Blockchain. The complete guide!
  23. 23. MINA Protocol: the lightest blockchain in the world!
  24. 24. Sustainable Blockchain - Proof of Useful Work & Flux
  25. 25. Cosmos SDK: Building the Blockchain Ecosystem
  26. 26. What is cross-chain interoperability in Blockchain technology?
  27. 27. Blockchain trilemma - explanation of the problem. What is the impact on cryptocurrency payments?
  28. 28. Non-fungible tokens and NFT exchanges
  29. 29. How to make money with NFT?
  30. 30. What is the NFT licence fee?
  31. 31. NFT Gas Fee - what is it? How can you reduce your gas fee?
  32. 32. The main differences between static NFT and dynamic NFT
  33. 33. What is minting an NFT?
  34. 34. What are NFT Ordinals? A guide to Bitcoin NFT.
  35. 35. What is KnowOrigin NFT, and how does it work?
  36. 36. ERC-6551 - the new NFT standard. What does it bring to the non-exchangeable token sector?
  37. 37. What is NFT Lending all about? An innovative solution in the world of cryptocurrencies!
  38. 38. The Metaverse – a new virtual world
  39. 39. Metaverse – TOP 15 virtual reality projects
  40. 40. Technical analysis – is it worth using?
  41. 41. Trading order types: stop loss, trailing stop loss, LIMIT
  42. 42. Market Cap versus Fully Diluted Market Cap - the most important differences you should know!
  43. 43. Set up of Stop Loss and Take Profit orders
  44. 44. What are DeFi liquidity pools?
  45. 45. Real Yield in DeFi - what is this trend? What does it consist of?
  46. 46. Vampire Attacks in Decentralized Finance (DeFi): Explanation and Examples
  47. 47. What are wrapped tokens 
  48. 48. What are security tokens?
  49. 49. What are Social Tokens? 
  50. 50. Liquidity Provider Tokens (LPs). What are they, and why are they so important?
  51. 51. What is the Lightning Network, and how does it work?
  52. 52. What is Play-to-Earn (P2E) and how does it work?
  53. 53. Cryptocurrency steps - What is move to earn M2E?
  54. 54. Segregated Witness - what is Segwit Bitcoin all about?
  55. 55. What are Decentralized Cryptocurrency DEX Exchanges?
  56. 56. What is Curve Finance?
  57. 57. What is GameFi and how does it work?
  58. 58. What is Proof of Reserves (PoR)? How does it work?
  59. 59. DAO Investment: A revolution in the world of finance and investment
  60. 60. What is MakerDAO and DAI Stablecoin?
  61. 61. What is the SubDAO protocol, and how does it work?
  62. 62. How to Create Your Own Decentralized Autonomous Organization (DAO)?
  63. 63. Atomic Swap: What is an atomic swap, and how does it work with cryptocurrencies?
  64. 64. What Is Cryptocurrency Vesting? What Are Its Advantages?
  65. 65. What Is the Metaplex Candy Machine Protocol? How Does It Work?
  66. 66. What Is the BNB Greenfield Ecosystem?
  67. 67. What Is Slashing in Cryptocurrencies?
  68. 68. Royalties – What Are They? How Does This Type of Licensing Fee Work?
  69. 69. What is TradFi? The importance for cryptocurrencies!
  70. 70. What is the Real World Asset (RWA) trend in cryptocurrencies? Explanation and examples!
  71. 71. Pyth Network: a powerful oracle harnessing the power of Solana!
  72. 72. What are stables in the world of cryptocurrencies?
  73. 73. What Is Binance Oracle?
  74. 74. Shibarium: A new era in the Shiba Inu ecosystem?
  75. 75. What is an ETF? How will an exchange-traded fund on bitcoin work?
  76. 76. Symmetric and asymmetric encryption - key cryptography techniques!
  77. 77. Hedging in cryptocurrencies - great portfolio protection against risk!
  78. 78. How to create your own cryptocurrency? 
  79. 79. What is a Dusting Attack in cryptocurrencies? How to protect against it?
  80. 80. What is a Black Swan?
Lesson 31 of 80
In Progress

31. NFT Gas Fee – what is it? How can you reduce your gas fee?

Whether you own an NFT or have only heard of them, you know that the gas fee is an essential part of it. The fees are often very expensive. But for the NFT developer and user – and most are – they are just annoying. What exactly are these NFT gas charges? Why are they even necessary? In today’s lesson, we will take a closer look at this topic!

NFT gas fee – what is it?

NFT gas is a charge for validators who work to maintain security on the blockchain network. Without such a fee, validators would not be willing to use their ETH and maintain the security of the network.

Every transaction, including coining, buying, selling or transferring NFTs and cryptocurrencies, involves a fee. So, you can see that this is very similar to how credit cards work – they also charge transaction fees for transferring money to different accounts or paying bills.

What else should you know about these pesky fees? We most often talk about gas fees when we mention the Ethereum blockchain. Currently, it is the one with the most expensive fees, ranging from $5 to $500. It all depends on the type of transaction and the current demand on the network.

As mentioned earlier, the transaction fees and gas fees are paid to the validators. This is their reward for securing the network. Without this remuneration, there would be no reason to become such a validator and stake their ETH. In this context, some interesting facts about the total transaction fee should be mentioned.

The total transaction fee is the product of the gas limit and the gas price. If the transaction fee is equal to the gas limit, our transaction will be executed and the blockchain will be updated. Conversely, if the transaction fee is greater than the gas limit, our transaction is reversed.

How are gas fees calculated on the blockchain network?

Gas fees are determined by the current supply and demand on the network. The formula for the gas fee in Ethereum is as follows:

Gas unit x base fee + tip

When the demand for transactions is high, more miners and validators are needed to do the work. More work also means more energy consumption. Consequently, gas charges increase. However, if the gas price does not reach a certain threshold, miners may refuse to process the transaction.

Remember that gas is a basic charge on the Ethereum network. It is assigned a market price based on the demand of the network at a given time. This approach is to ensure efficiency and the best possible use of computing power. The amount of the gas fee also depends on the size of the transaction or even the speed at which it is to be executed.

Why do NFTs need a gas fee?

To reward validators and miners for their hard work. Not only when mining non-convertible tokens, but also when validating transactions. Remember, miners and validators use their own computing power. In return, like any other worker, they expect to be paid for their time and resources.

Gas fees also contribute to the functioning of the blockchain. If miners and validators are paid for their work, they will want to earn more gas fees, which increases the security of the entire network. A bigger incentive is a greater willingness of miners to devote resources to validating transactions to secure the blockchain. At the same time, this optimizes transaction speed as more computing resources are used for mining operations.

How can you reduce your gas costs?

  1. Only carry out transactions when the demand for transactions on the network is low.

There is no specific time for this. You need to monitor the network and do a transaction when demand is low on the network. It’s a good idea to use the Ethereum Gas Price for this – it allows you to estimate what time of day transactions are ‘cheapest’ or beat NFT.

  1. Set your own gas limit!

In your cryptocurrency wallet, you can change the maximum Gwei fee and set how much NFT gas you can pay as a maximum. Then no transactions will be processed unless the fees fall below the limit you set. As long as you have set a limit, you cannot start a new trade or reject a new NFT. So, this is not the best option for those who want to get things done quickly.

  1. Edit your transaction priority.

This is a very simple way to reduce fees. In your portfolio, literally ‘in the register’, you can set a particular trade to “low”, “market” or “aggressive”. Low priority is the cheapest and the slowest. Aggressive, on the other hand, is the most expensive, but also the fastest.

  1. Take advantage of Ethereum’s Layer 2 solutions!

Layer 2 is designed to help you scale by processing transactions outside the main Ethereum network. At the same time, the same security measures and decentralization are maintained as on the main network. For certain transactions – selling or buying NFTs – it makes sense to use a different blockchain. For some chains, the fees are very low, for others not at all.


The popularity of NFTs has skyrocketed recently. Technology offers them new markets where creators or NFT artists can practice their craft. However, everything comes at a price. If an artist is not aware of the costs involved in making and selling them from the start, he will lose out.

Every artist can set a gas limit or trade because there is little demand in the market. Those who know these tricks are perfectly capable of making money with non-exchangeable tokens!