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Layer 2s
Polygon to Start Much-Awaited Swap of POL Token for Longstanding MATIC
The migration to POL from MATIC will also bring in some tokenomics changes with a new emission rate of 2% annually.

Coinbase Promotes cbBTC, Wrapped Bitcoin Alternative for Base Blockchain
Tweets from the crypto exchange and Jesse Pollak, the creator of Base, suggest cbBTC could run on the layer-2 blockchain.

It's a Different Sort of Olympics as Cryptographers Face Off in Polyhedra's 'Proof Arena'
This team of cryptographers claimed their "prover" – a key component of many blockchain systems – was faster than anyone else's. Now they've built a platform they say will provide transparent benchmarking for anyone who wants to compare the various options out there.

Bitcoin Layer 2 Rootstock Verifies Zero-Knowledge SNARK
Rootstock verified the SNARK using BitVMX, which is Rootstock's modified version of BitVM

Bitcoin Layer-2 Chain Bitlayer Raises $11M Led by ETF Issuer Franklin Templeton
Bitlayer's layer 2 is based on the BitVM paradigm, which was unveiled last October and laid out a path for Ethereum-style smart contracts on the original blockchain.

Polygon's New ZK Proving System, 'Plonky3,' Comes as Open-Source Toolkit
Proving systems are a crucial component at the heart of blockchain ecosystems, allowing secondary "rollup" networks to confirm transactions on a base chain like Ethereum. Polygon's prior version, Plonky2, was released in 2022.

Blockchain Startup Rome Raises $9M to Serve Ethereum Layer-2s Through Solana
Shared sequencers and data availability (DA) are services that Rome could provide, as blockchain builders increasingly rely on "modular" networks to handle Ethereum's myriad components and functions.

Tezos, Smart-Contract Blockchain of ICO Fame, Reveals Roadmap to Rejuvenate
The decade-old blockchain's development plan, which goes out through 2026, calls for splitting off transaction execution into a separate "canonical rollup" that would support multiple programming languages.

Marathon's Layer-2 Chain, Anduro, Plugs In 'Portal to Bitcoin' for Atomic Swaps
The publicly-traded bitcoin miner Marathon began incubating Anduro in February as a "platform built on the Bitcoin network that allows for the creation of multiple sidechains."

Sonic, Gaming-Focused Layer-2 Chain on Solana, Raises $12M
The Sonic project's Series A round was led by Bitkraft and joined by investors including Galaxy Interactive and Big Brain Holdings.
