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Tamper-evident, cryptographically chained evidence records

Chain of custody software for physical and digital evidence.

CustodyTrack.io is an evidence-tracking platform designed to support courtroom chain-of-custody requirements — informed by FRE 901, ISO/IEC 27037, and NIST SP 800-86 — for law enforcement, forensic labs, counsel, and independent examiners.

5 free Authenticated Chain of Custody Forms every month — no card required.

Not ready for an account? Build a chain of custody form free — no sign-up, printable PDF.

How it works

Authenticate, transfer, and verify — in three steps.

1

Authenticate

Create Authenticated Chain of Custody Forms to record any transaction of physical and digital evidence. Start from templates designed around the questions investigators, labs, and counsel ask about custody.

2

Transfer

Transfer custody to anyone in a verifiable 3-step process where both parties acknowledge the handoff — with proof sealed into a cryptographically chained record that reveals any later alteration.

3

Verify

Any third party can check that a record is unaltered using its verification code. Verification shows integrity information only — never the record's contents or the names in it.

Why CustodyTrack?

Improve transparency and accountability, enhance data security and efficiency, and strengthen the integrity record behind your evidence — all without having to develop your own blockchain or invest in expensive in-house computing resources.

  • Transparency & accountability

    Every custody event is recorded in a clear, ordered timeline that both parties acknowledge.

  • Data security & efficiency

    We store what you enter on a form and the hash values that seal it. The evidence itself never leaves your hands, and public verification never reveals what a record describes.

  • Integrity anyone can check

    Every record carries a verification code, so a recipient, an opposing expert, or a court can check its integrity without an account and without building any infrastructure of their own.

The tamper-evident seal

Think of it as a wax seal for digital records: if anything changes, the seal breaks and verification fails.

Record 1 — Created

prev
content hash
seal
9f2c…a41d

Record 2 — Transfer initiated

prev
9f2c…a41d
seal
4ab7…03ce

Record 3 — Transfer accepted

prev
4ab7…03ce
seal
d58e…7f19
Each record's seal incorporates the seal of the record before it. Alter any record — even one character — and every seal after it fails verification.

Simple, transparent pricing.

Pay per form or subscribe for monthly credits. There is no charge for transfers or verifications on any plan.

See all plans

Single Form

$4.99

one-time

1 form credit

Starter

$19.99

per month

10 forms / month

Most popular

Professional

$49.99

per month

40 forms / month

Enterprise

$99.99

per month

150 forms / month

Start sealing your chain of custody today.

5 free Authenticated Chain of Custody Forms every month — no card required.