# Important Concepts

This section contains important concepts related to Merlin Chain that users, especially beginners, need to understand.

<table><thead><tr><th width="143">Concepts</th><th>Resource</th></tr></thead><tbody><tr><td>BTC Layer2</td><td><a data-mention href="important-concepts/btc-layer2">btc-layer2</a></td></tr><tr><td>UTXO</td><td><a data-mention href="important-concepts/utxo">utxo</a></td></tr><tr><td>M-Point</td><td><a data-mention href="how-to/staking-and-unstaking/staking-merlins-seal-already-concluded/m-points-rewards-and-team-rules">m-points-rewards-and-team-rules</a></td></tr><tr><td>AA Wallet</td><td><a data-mention href="important-concepts/aa-wallet">aa-wallet</a></td></tr><tr><td>M-Token</td><td><a data-mention href="how-to/m-token">m-token</a></td></tr><tr><td>Merlin_BTC</td><td><a data-mention href="important-concepts/merlin_btc">merlin_btc</a></td></tr><tr><td>MERL</td><td><a href="../about-merlin/tokenomics">Tokenomics</a> and <a href="how-to/merl">Related Operations</a></td></tr></tbody></table>