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Mysterious string etched into Bitcoin for three weeks; Galaxy Digital says unlikely to be ciphertext

An unidentified string repeatedly recorded on the Bitcoin blockchain for three weeks is more likely data used to test automated tools than a genuine encrypted message, an analysis said. Galaxy Research, part of Galaxy Digital, reviewed the activity and found patterns consistent with automation and text characteristics that did not match common ciphers. The strings were written via OP_RETURN, enabled by relaxed Bitcoin Core v30 rules. Funding was traced to 0.033 bitcoin, but the operator was not identified.