@rjs
How many EC20 tokens on Base are implemented with proxies?
I'm not aware of an easy way to determine this precisely, but a quick approximation is to try finding the token symbol in its code. So I took the top 1000 Base tokens by Dune trading volume (which is subject to price manipulation), and checked if the token symbol was present in the contract code.
Results: 81.6% have the token symbol in the code.
18.4% did not: USDC, EURC, Zora creator coins, Virtuals agents, etc. Manual inspection confirms these tokens DO use proxies.
Note: Not all proxies support upgrades, so this isn't to say all these token implementations can change. Answering that question would require additional analysis.
Sauce: https://dune.com/queries/6309892/10049463
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