Table 3 Comparison of DHC with previous research considering security attacks.

From: A lightweight scalable and dynamic blockchain-based model for storing and retrieving patient healthcare records

No.

Research

DDoS

Eclipse

Sybil

Forks

1

DChain28, 2024

-

-

-

-

2

BCLOD21, 2025

√

√

√

√

3

DHC

√

√

√

√

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