ChainVault Ledger | Evidence Chain of Custody Terminal
ChainVault Ledger is a secure, offline evidence chain-of-custody terminal for law enforcement, featuring immutable audit logs, QR labels, and PDF reports.
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About ChainVault Ledger | Evidence Chain of Custody Terminal
ChainVault Ledger is a purpose-built, single-file HTML application designed to manage the chain of custody for physical evidence in law enforcement and legal environments. It provides a comprehensive, tamper-evident system for logging evidence intake, transfers, and sealing, ensuring every handoff is documented with unique IDs, timestamps, and authorized signatures. The application operates entirely offline, storing data in an encrypted IndexedDB, which guarantees that sensitive evidence records remain secure and private, with no cloud dependency or risk of data leaks.
For police officers, evidence custodians, and legal professionals, ChainVault Ledger replaces error-prone paper logs and spreadsheets with a streamlined digital workflow. Each evidence item receives a unique identifier and can be labeled with a QR code for quick scanning and tracking. The system supports multiple storage locations, allowing officers to assign evidence to specific rooms, lockers, or facilities. Transfers between officers or departments are recorded with full audit trails, including dates, times, and digital signatures, ensuring full accountability at every step.
What sets ChainVault Ledger apart is its immutable audit history. Every action is logged in a blockchain-like structure that cannot be altered or deleted, providing a verifiable record that stands up to scrutiny in court. The application also generates professional PDF chain-of-custody reports, which can be printed or shared digitally, saving time and reducing administrative burden. With its intuitive interface, real-time dashboards, and robust search capabilities, ChainVault Ledger empowers agencies to maintain the highest standards of evidence integrity.
The application is designed for rapid deployment in any department, requiring no installation, sign-up, or external servers. It runs directly in a web browser, making it accessible on any device, from desktop computers to tablets used in the field. The encrypted storage ensures that even if a device is lost or stolen, the data remains protected. ChainVault Ledger is the ultimate tool for modern evidence management, combining security, efficiency, and legal compliance in one powerful package.
Key features
- ✦ Immutable audit trail with blockchain-like integrity
- ✦ Unique evidence IDs with printable QR labels
- ✦ Encrypted offline storage using IndexedDB
- ✦ PDF chain-of-custody report generation
- ✦ Multi-location storage tracking and transfers
- ✦ Authorized digital signatures for custody actions
- ✦ Real-time dashboard with KPIs and alerts
- ✦ Search and filter across all evidence records
Use cases
- → Logging evidence at a crime scene
- → Transferring evidence between officers or departments
- → Managing evidence storage in multiple facilities
- → Sealing evidence for secure transport
- → Generating court-ready chain-of-custody reports
- → Auditing evidence handling for compliance
FAQ
Does ChainVault Ledger require an internet connection?
No, ChainVault Ledger works entirely offline. All data is stored locally in an encrypted IndexedDB, ensuring you can access and update evidence records even in remote locations without connectivity.
How does the immutable audit trail work?
Every action in ChainVault Ledger is recorded in an append-only log that cannot be altered or deleted. This creates a permanent, verifiable history of each evidence item, ensuring full accountability and integrity.
Can I generate QR labels for evidence items?
Yes, ChainVault Ledger allows you to print QR labels for each evidence item. These labels can be scanned to quickly retrieve item details and update status, reducing errors and speeding up workflows.
Is my data secure?
Absolutely. All data is encrypted at rest in your browser's IndexedDB. No data is sent to any server, so your evidence records remain confidential and protected from unauthorized access.
What formats are available for reports?
ChainVault Ledger can generate PDF chain-of-custody reports that are formatted for legal use. You can also export data to CSV for further analysis in spreadsheet software.
Can multiple users access the same data?
Since the app is single-file and stores data locally, it is designed for single-device use. However, you can export/import data or share the HTML file with others, but real-time collaboration is not supported.
Is there a sign-up or subscription fee?
No, ChainVault Ledger is completely free to use. It is a single HTML file that you can download and run in any modern web browser without any registration or subscription.