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Arkham (crypto analytics firm): Top 20 Ethereum addresses (public on-chain accounts) controlled by institutions or exchanges

According to Arkham’s 2026 report, the largest personal holding address reportedly lost its private key (cryptographic ownership secret), underscoring how major balances reside with institutional and exchange custodians.

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Summary

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Terms & Concepts
  • Private key: A cryptographic ownership secret that authorizes transfers from a blockchain wallet; losing it typically makes funds inaccessible.
  • Blockchain address: A public on-chain account identifier used to receive and hold crypto assets like Ethereum.
  • Custodial exchange: A centralized trading platform that holds users’ assets on their behalf, managing private keys and withdrawals.