Cryptographically Sealed
Drug Test Records.
Litigation-Ready Documentation from Day One.
When a drug test result is disputed, the credibility of the documentation determines the outcome. TestLedger™ replaces fragile paper trails with cryptographically sealed records that can be independently verified by auditors, attorneys, and regulators.
a wrongful termination claim*
lack verifiable chain of custody*
When a result is disputed, paper records and spreadsheets cannot prove they haven't been altered.
Employers face litigation, regulatory audits, and employee disputes. When a positive test is challenged, the question isn't just what the result was , it's whether you can prove the record was never touched after the fact. Paper and spreadsheets can't answer that question.
Litigation Exposure from Disputed Results
When a terminated employee challenges a positive drug test, employers must produce documentation proving unbroken chain of custody. Paper forms often contain unverified signatures, missing timestamps, or inconsistent collector notes that create openings for wrongful termination claims.
No Proof Records Haven't Been Altered
Spreadsheets and basic HRIS modules store test results, but offer no cryptographic evidence that data has not been modified after the fact. In an audit or deposition, there is no mechanism to prove a record was not backdated, edited, or selectively deleted.
State-by-State Regulatory Variance
Cannabis legalization across 24+ states has created a patchwork of employer obligations. Organizations operating in multiple jurisdictions need documentation that captures policy-specific test panels, thresholds, and consent workflows to remain compliant in every state.
Inconsistent Multi-Site Documentation
Companies with distributed workforces rely on different collectors, clinics, and internal procedures across locations. Without a standardized digital workflow, documentation quality varies site to site, creating compliance gaps that surface during audits or legal discovery.
Workers' Comp and Insurance Exposure
Many state drug-free workplace programs offer workers' compensation premium reductions for employers with compliant testing programs. Inadequate documentation can jeopardize these benefits, and incomplete records weaken post-accident claim defenses.
MRO Review Bottlenecks
Medical Review Officers need clear, complete specimen documentation to process non-negative results efficiently. Missing collector information, unclear specimen IDs, or delayed paperwork extends the review cycle, creating liability windows and delayed hiring decisions.
Documentation failures are the number one reason drug test results get overturned.
Not lab errors. Not false positives. Procedural and documentation deficiencies give attorneys the leverage to challenge otherwise valid results, turning a $50 drug test into a six-figure legal exposure.
Market (2024)
Collect. Document.
CryptoSeal™. Verify.
Turn every workplace drug testing event into a tamper-evident, independently verifiable record. TestLedger replaces fragile paper trails with structured records verified by auditors, attorneys, and regulators.
- Every record SHA-256 sealed at the moment of collection
- PHI protected by design; identity never exposed by verification
- Structured for FRE 901 authentication requirements
- Full audit export in under 60 seconds
Collect
Authorized personnel capture the test authorization, donor identification, consent, and collection details in a structured digital form. Standardized fields create a clear, consistent evidentiary record from the start.
Document
Test results, MRO reviews, photographs, and supporting documents are attached before sealing. Each file is hashed and added to the evidence manifest, creating a complete, auditable record package.
Seal with CryptoSeal™
CryptoSeal™ generates a SHA-256 fingerprint over the sealed record, including structured fields, chain-of-custody data, and attached evidence. Any later change creates a hash mismatch and invalidates the seal.
Verify
Authorized parties can independently verify record integrity through the TestLedger verification engine. The current file hash is compared to the original sealed CryptoSeal™ fingerprint to confirm the record remains unchanged.
Customer records remain private and under the custody of the originating organization. TestLedger does not store or access the underlying files and operates solely as a cryptographic verification layer.
When documentation is challenged, what do you produce?
Two situations every drug testing program faces. The difference between a defensible record and an exposed one is whether the documentation was structured, timestamped, and cryptographically sealed at the time of the event.
Pre-Employment Screening Dispute
Candidate's offer was rescinded after a positive result. Three months later, an EEOC charge alleged discriminatory testing practices. During discovery, the employer was ordered to produce all documentation related to the test , including proof that records were created at the time of testing, not assembled after the charge was filed.
- No exact date on the test , only "Nov 2025"
- Consent box checked, no signed form on file
- No specimen ID or chain-of-custody record
- No way to prove record was not modified after the charge
- Exact consent timestamp: 2025-11-14 10:02 PST
- Digital consent attestation with operator ID
- Specimen ID and collection time recorded
- SHA-256 hash sealed same day , proves no modification
Multi-Site Insurance Audit
An insurance carrier audited the company's drug-free workplace program across four locations to determine eligibility for a workers' comp premium discount. The auditor requested 12 months of records from all sites. Inconsistent formats, missing fields, or unverifiable timestamps would disqualify the program entirely.
- Dallas: paper photocopies , name, date, result only
- Denver: Excel spreadsheet , partial fields
- Phoenix: email to HR , no standardized form
- Portland: Google Form , link expired, records unrecoverable
- 158 records across 4 sites , identical format, every field complete
- Every record SHA-256 sealed with operator ID and timestamp
- Full 12-month export delivered in under 60 seconds
- Independent hash verification available for any record
One record. One workflow. Cryptographically sealed.
The difference between a defensible record and a liability is whether the documentation was structured, timestamped, and cryptographically locked at the time of the event.
- Fragmented formats across locations , paper, email, spreadsheet
- No tamper evidence; records can be edited or backdated after the fact
- Audit assembly takes days; independent verification is not possible
- SHA-256 cryptographic seal on every record , tamper-evident by design
- Independent verification portal requires no account and exposes no PHI
- Structured, searchable data exportable in seconds for any audit
Defensible records for a fraction of the cost of one dispute.
Built for workforce drug testing programs. When documentation is challenged, structured, timestamped, and independently verifiable records can matter far more than the original test itself.
Core documentation controls for employers running straightforward testing programs with consistent recordkeeping needs.
- Drug Test Record forms
- Operator identification and timestamps
- Test panel and result documentation
- JSON record export
- Up to 3 users
CryptoSeal™ record sealing, chain-of-custody audit trails, and tamper-evident evidence storage for organizations that need dispute-ready records.
- Everything in Basic
- SHA-256 cryptographic record sealing
- Complete chain-of-custody audit trail
- Possession-based record verification portal
- S3 tamper-evident record storage
- Multi-location support, up to 10 users
- Administrative dashboard
Both plans include a free trial. No credit card required to start.
What employers ask before they start.
When the demand letter arrives,
your response is already prepared.
Every TestLedger record is timestamped, sealed, and tamper-evident at the moment of collection. When documentation is demanded, it is already structured, signed, and ready to verify.
Tel: (415) 882-4400 | Fax: (415) 882-4401
Acme Industrial Services, Inc.
Former Employee: Daniel Martinez • Matter No. HC-2026-0391
Our firm represents Mr. Daniel Martinez regarding his termination from Acme Industrial Services on May 22, 2026. Mr. Martinez disputes the basis for that action and has retained counsel to pursue employment-related claims.
This letter serves as formal notice that Acme Industrial Services must immediately preserve all records relating to Mr. Martinez's employment and drug testing history, including:
- Chain-of-custody documentation
- Laboratory reports and confirmed results
- Collector identification and timestamp records
- Consent and authorization records
- Electronic records related to the testing event
RESPONSE
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