Reproducible proof example

Verify a complete RFC 3161 timestamp credential yourself

Download the fixed sample and its real .lanveris credential, recalculate the fingerprint, then verify the Merkle root, timestamp signature, and certificate chain with the CLI. This is a technical demonstration, not a customer case or copyright claim.

Download sample fileDownload .lanveris credential

Published facts

File
lanveris-fingerprint-example.txt
Size
164 B
Expected SHA-256
e88ca3a71d63412ac1f2c141dcdb03793310ba6c93d8879c5c3f22155cd9dca6
Timestamped Merkle root
dd34bd7baae87d65f1c503034e865916ab9361985c6257029bd2a0293f085ff5
Trusted timestamp
2026-07-15T09:13:27Z
Timestamp authority
DigiCert · RFC 3161

Verify the complete credential

Lanveris CLI

lanveris verify lanveris-fingerprint-example.txt lanveris-fingerprint-example.txt.lanveris

A successful result reports that the file existed no later than 2026-07-15T09:13:27Z and that DigiCert issued the timestamp. Verification uses the credential itself and does not depend on this page's claim.

Reproduce locally

macOS / Linux

shasum -a 256 lanveris-fingerprint-example.txt

Windows PowerShell

Get-FileHash .\lanveris-fingerprint-example.txt -Algorithm SHA256

The output must exactly equal the expected SHA-256 above. Renaming the unchanged file keeps the result; editing even one byte normally changes it.

Continue with the complete proof method

Read the proof method →Download Merkle test vectors →Open the public verifier →