Crypto 101 📚 The Cancun upgrade and blobs
The Fusaka upgrade in December 2025 introduced PeerDAS, allowing nodes to sample only part of the blob data. The blob limit was increased afterward as well.
Ethereum’s Cancun upgrade (Dencun) went live on March 13, 2024. Its key change was EIP-4844, also known as Proto-Danksharding.
Don’t laugh—I only learned this after getting burned myself.
When layer 2 networks submit blob data to the mainnet, blob fees are also paid using $ETH .
The Fusaka upgrade in December 2025 introduced PeerDAS, allowing nodes to sample only part of the blob data. The blob limit was increased afterward as well.
Ethereum’s Cancun upgrade (Dencun) went live on March 13, 2024. Its key change was EIP-4844, also known as Proto-Danksharding.
Don’t laugh—I only learned this after getting burned myself.
When layer 2 networks submit blob data to the mainnet, blob fees are also paid using $ETH .