# Missing Piece for BTC L2s?

*Author: Bankless*
*Published: Jun 19, 2024*
*Source: https://www.bankless.com/es/missing-piece-for-btc-l2s*

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[![](https://storage.ghost.io/c/e4/b7/e4b77544-5a37-4f0b-8824-8440aa348476/content/images/2024/06/Frame-50572--1--2.png)](https://www.bankless.com/sponsor/mantle-1706216729?ref=what-is-op_cat-toward-bitcoin-l2s-with-covenants&email=true)

  

Missing Piece for BTC L2s?
    
  

  
  Published on June 19, 2024

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[**Sponsor: Mantle**](https://www.bankless.com/sponsor/mantle-1706216729?ref=what-is-op_cat-toward-bitcoin-l2s-with-covenants&email=true) — Mass adoption of decentralized & token-governed technologies.

[Visit mantle.xyz to Learn More](https://www.bankless.com/sponsor/mantle-1706216729?ref=what-is-op_cat-toward-bitcoin-l2s-with-covenants&email=true)

.  .  .

 
  
    
      
      NEED TO KNOW
    
    
  
  
    
LayerZero Token Coming
  

  

 

[![](https://storage.ghost.io/c/e4/b7/e4b77544-5a37-4f0b-8824-8440aa348476/content/images/2024/06/Group-15--53-.png)](https://www.bankless.com/dashboard)- 0️⃣ **LayerZero Drops its Token Checker.** The LayerZero token is almost here, and the team has already [dropped a tool](https://x.com/LayerZero_Fndn/status/1803294040068165809) for users to check whether a wallet will be eligible.
- 🧬 **Kraken Exploited for $3M by Security Firm.** Security firm Certik disclosed a bug to the CEX, but not before researchers at the firm exploited the network for $3M in crypto, [Kraken says](https://x.com/c7five/status/1803403565865771370). Certik [disputes](https://x.com/CertiK/status/1803450205389402215) Kraken's version of events and says funds are being returned.
- **🗣️ DJT Trump Token Drama Continues.** The alleged official Trump Solana memecoin was created by Martin Shkreli, Crypto Twitter sleuth ZachXBT [discovered](https://x.com/zachxbt/status/1803240784436797871).

.  .  .

 
  
    

    MARKET VIBES

  
  

  Altcoins Rebound
  
  
   
     
   
     
    
 

**📸 Daily Market Snapshot: ***Altcoins finally had a good day Wednesday after a June filled with doom and gloom. While BTC stayed mostly flat on the day, ETH was up 4.5% and remained one of few tokens that were flat on a very challenging week for crypto markets*

Prices as of 3pm ET
24hr
7d

 

       ![](https://banklesspublic.b-cdn.net/cmc.png)
    

  **Crypto**
   
          $2.37T
       

  
    
    ↗ 2.1%
    
  

   
    
    ↘ 6.0%
    
  

       ![](https://banklesspublic.b-cdn.net/btc.png)
    

  **BTC**
   
          $65,051
       

  
    
    ↗ 0.5%
    
  

   
    
    ↘ 5.6%
    
  

       ![](https://banklesspublic.b-cdn.net/eth.png)
    

  **ETH**
   
          $3,567
       

  
    
    ↗ 4.7%
    
  

   
    
    ↘ 0.2%
    
  

  

.  .  .

 
  
    

ANALYSIS

  
  
    
   
OP_CAT: The Missing Piece for BTC L2s? 
  
  
   
     
     Bankless Author: 
     
       [
       
       William M. Peaster](https://x.com/WPeaster)
     
    
 

[![](https://storage.ghost.io/c/e4/b7/e4b77544-5a37-4f0b-8824-8440aa348476/content/images/2024/06/Screenshot-2024-06-18-at-5.14.23-PM-2.png)](https://www.bankless.com/what-is-op_cat-toward-bitcoin-l2s-with-covenants)**Bitcoin L2s are the talk of the town**, but not much of their promise has been realized yet.

*What are Bitcoin's builders waiting for?* One significant proposal could help mature the Bitcoin L2 landscape: the reintroduction of OP_CAT. This opcode, which was disabled early in Bitcoin's history, could unlock new capabilities and pave the way for more sophisticated and trustless Bitcoin L2 solutions.

*Let's dig into why this opcode could be so transformative for BTC* 👇

[Read the Analysis](https://www.bankless.com/what-is-op_cat-toward-bitcoin-l2s-with-covenants)
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