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Chain of custody (CoC) preservation is essential to ensure the integrity and authenticity of digital evidence in legal and forensic settings. This review article examines how Blockchain-based solutions address the requirements of ISO 27037, which regulates the identification, collection, acquisition and preservation of digital evidence. An initial taxonomy is also proposed to classify blockchain-based solutions. The analysis reveals significant shortcomings in aspects such as auditability, scalability and legal admissibility. Finally, key recommendations are presented to strengthen the integration between Blockchain and ISO 27037 guidelines, fostering more robust solutions aligned with international forensic standards.

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An Analysis of Blockchain Solutions for Digital Evidence Chain of Custody

  • 会议论文

  • 发表日期：

    2026年

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  • Irene Lavín,
  • Diego R. Llanos

摘要

Chain of custody (CoC) preservation is essential to ensure the integrity and authenticity of digital evidence in legal and forensic settings. This review article examines how Blockchain-based solutions address the requirements of ISO 27037, which regulates the identification, collection, acquisition and preservation of digital evidence. An initial taxonomy is also proposed to classify blockchain-based solutions. The analysis reveals significant shortcomings in aspects such as auditability, scalability and legal admissibility. Finally, key recommendations are presented to strengthen the integration between Blockchain and ISO 27037 guidelines, fostering more robust solutions aligned with international forensic standards.