# Hard finality means that Sequencer

By [Marion Welch](https://paragraph.com/@marion-welch) · 2022-12-06

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Hard finality means that Sequencer periodically publishes its sequences to the L1 network. Sequencer concatenates the group of transactions in the feed, compresses them for efficiency, and posts the result as calldata on Ethereum.

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*Originally published on [Marion Welch](https://paragraph.com/@marion-welch/hard-finality-means-that-sequencer)*