Automated Scientific Data Validation Pipeline with Checksum Verification

Design a robust Bash script that automatically validates large scientific datasets from multiple instrument sources by implementing multi-stage checksum verification. The script must support MD5, SHA256, and custom cryptographic hash algorithms. Create a workflow that logs all validation events, generates comprehensive validation reports, and can handle file collections ranging from gigabytes to multiple terabytes. Include error handling for network interruptions, partial file transfers, and implement a retry mechanism for failed validation attempts.