Blockchain forensics platform Arkham Intelligence has sparked outrage in the crypto community after posting a new update claiming it can now track Zcash transactions, apparently including shielded ones.
In an X thread on Monday afternoon, Dec. 8, Arkham said it has identified more than half of Zcash transactions, including "shielded and unshielded transactions," representing $420 billion in ZEC-related volume. The firm said it has linked half of Zcash transactions to “known individuals and institutions.” Arkham specified that now 53% of all Zcash transactions are labeled, 48% of inputs and outputs are linked to entities, and 37% of balances are tagged.
The backlash to Arkham’s post was nearly immediate. Helius CEO Mert Mumtaz called out the firm for using a “scummy clickbait title.” Mumtaz said in replies to Arkham’s announcement that the blockchain analytics firm hasn’t been able “to do jack all to shielded txns but you include in there for a few clicks.”
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