The Bitcoin address 1B4U28Yc1JmSQbpzzSfavEskTPMvBRphyD is attributed to 
Coinbase on Arkham. It is labeled "Cold Wallet". It is one of 69,962,549 addresses Arkham attributes to Coinbase. It holds $5 in priced tokens, including $5 of 
Bitcoin (BTC). Its latest transfer indexed by Arkham was on May 25, 2026.
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