The Bitcoin address 3KbWiPRCgWkQNW7QKE3mkJtBcFD6cSsQE6 is attributed to 
MARA on Arkham. It is labeled "Fidelity Custody Deposit". It is one of 216 addresses Arkham attributes to MARA. It holds $5 in priced tokens, including $5 of 
Bitcoin (BTC). Its latest transfer indexed by Arkham was on October 31, 2025.
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