Data

1) On the 1st of October, during a price dip, tx fees on most Layer 2s increased. On @arbitrum we saw the biggest outlier around $0.07 (funny this is an outlier now)

It is common to see a tx fee increase during price swings but we could also see what appears to be some contracts spamming the @arbitrum network

Official account of the Arbitrum Foundation.

https://arbitrum.io/

2) To dive into this outlier we can simply select this value in the outlier table at the top of the Layer 2 Transactions Fees dashboard by clicking "Explore 🔎"

🔗 https://dune.com/Marcov/layer-2-transaction-cost

Blockchain Data Analyst 🔎

dune.com/Marcov

3) On the Transaction Fee Explorer, we can see that around 17:20 the number txs rapidly increased to over 19K in one minute 📈 

Which caused the base fee to increase to 2.3 on average

4) This seems to be caused by some contracts doing a lot of txs, with no events or value being transferred, curious is someone knows what some of these contracts are doing?

0xfa149ed27c36505ed9f3b2a14645eba6e541128a
with 5001 txs in one minute
https://arbiscan.io/address/0xfa149ed27c36505ed9f3b2a14645eba6e541128a

0xE5d84Ad22EF6B4d7A2a081F503Eb5fe16066Faa6
with 2000 txs in one minute

5) As a result other users are paying a higher fee for a longer period of time because of this spike which you can see in the chart below 💰

You can explore this outlier yourself via this link: https://dune.com/Marcov/layer2-transaction-fee-explorer?START_TIME=2024-10-01%2016%3A00%3A00&END_TIME=2024-10-01%2017%3A00%3A00&BLOCKCHAIN=arbitrum

Or select any other outlier on the Layer 2 Transaction Fee Dashboard:

You can explore this outlier yourself via this link: https://dune.com/Marcov/layer2-transaction-fee-explorer?START_TIME=2024-10-01%2016%3A00%3A00&END_TIME=2024-10-01%2017%3A00%3A00&BLOCKCHAIN=arbitrum

Or select any other outlier on the Layer 2 Transaction Fee Dashboard:
https://dune.com/Marcov/layer-2-transaction-cost

4) This seems to be caused by some contracts doing a lot of txs, with no events or value being transferred, curious is someone knows what some of these contracts are doing?

0xfa149ed27c36505ed9f3b2a14645eba6e541128a
with 5001 txs in one minute
https://arbiscan.io/address/0xfa149ed27c36505ed9f3b2a14645eba6e541128a

0xE5d84Ad22EF6B4d7A2a081F503Eb5fe16066Faa6
with 2000 txs in one minute
https://arbiscan.io/address/0xe5d84ad22ef6b4d7a2a081f503eb5fe16066faa6