Each completed phone collection can have an authenticity certificate that documents the collection's integrity, chain of custody, and collection method.

Once generated, the certificate appears with three action buttons: PDF, Verify, and Remove.

Click PDF to download the full Authenticity Certificate as a PDF file.

The certificate opens with a Collection Summary, Source Device details, and a Conversations summary.

The Data Integrity section contains a SHA-256 cryptographic hash recorded at the point of acquisition and verified again at upload, confirming that no data was altered between collection and storage. A Certification statement confirms the certificate was generated automatically by the Hearsay platform and has not been manually edited.

The certificate includes a Verification section with a QR code and a link to portal.usehearsay.com/verify/

for independent online verification.

Four appendices follow. Appendix A: Chain of Custody provides a timestamped log of every event from extraction code creation through certificate generation. Appendix B: Data Integrity shows the full SHA-256 hashes at acquisition and upload, with a match confirmation. Appendix C: Collection Method Statement contains a plain-language description, a technical description, and a non-alteration statement explaining how the data was collected. Appendix D: Message Breakdown provides a per-conversation breakdown showing conversation name, platform, message count, and date range.

Click Verify to open the public certificate verification page at portal.usehearsay.com/verify/

.

Anyone with the verification link or QR code can confirm the certificate is authentic without needing access to the case.

Click Remove to delete the certificate from the case.