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Bitcoin Transactions

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Close-up of bitcoin coins and US dollar bills in a small shopping cart, symbolizing online shopping and cryptocurrency investment.
NEWSAUG 5, 2026
Coldcard Hacker’s $36 Million Bitcoin Wallet Becomes a Blockchain Message Board
A bitcoin wallet linked to the Coldcard hacker is receiving small deposits carrying permanent on-chain messages, ranging from pleas for refunds to opportunistic pitches. The activity highlights how Bitcoin’s OP_RETURN function can turn a theft address into a public, immutable message board.