# 2024.12.2- 2024.12.8

### 2024.12.6

BitVM Official Project Update: BitVM fixed an error in the off-chain checker written based on Algorithm 5 in "On Proving Pairing." Previously, when the accumulator was a cubic residue, it caused an error in the calculation of wi. This update addresses the issue. <https://github.com/BitVM/BitVM/pull/141><br>

### 2024.12.5

Bitlayer @BitlayerLabs released maintenance version v1.1.6, and all nodes are advised to upgrade promptly. <https://x.com/BitlayerLabs/status/1864593109675594001>   Bitlayer is The First Bitcoin Layer2 based on Bitcoin finality<br>

### 2024.12.4

Fiamma @Fiamma\_Chain completed a $4 million seed round of financing.Fiamma Bridge, the first trust-minimized Bitcoin cross-chain bridge based on BitVM2, is now live on the Alpha testnet. It achieves secure and practically trustless cross-chain interactions with Bitcoin for the first time, without relying on complex centralized intermediaries or multisig setups. <https://x.com/Fiamma_Chain/status/1864332351871885503><br>

### 2024.12.3

BitVM Official Project Update: BitVM resolved the issue of the point at infinity being used as input for the affine\_add and affine\_double functions, which previously did not account for the point at infinity in affine representation. <https://github.com/BitVM/BitVM/pull/139>\
BitVM Official Project Update: Lukas reported an issue involving abuse of the EQUALVERIFY script in the current algorithm. A fix is in progress. [https://github.com/BitVM/BitVM/issues/143<br>](https://github.com/BitVM/BitVM/issues/143)

### 2024.12.2

BitVM Official Project Update: The Bitlayer research team fixed a pairing calculation error in the BitVM project, which could have allowed malicious challengers to succeed under any circumstances. <https://github.com/BitVM/BitVM/pull/140>