seal
pressing 4,812,004 receipts to chain …
✓ sealed
4,812,004 receipts sealed seal a file
01Sign02Verify03Registry04Network

journal.

Notes from the ledger — provenance, verification, and the occasional war story.

reporter in the field
war story

the deepfake that wasn't

Priya Raghavan · Apr 2, 2026
protocol

why provenance is a chain problem

Priya Raghavan · Mar 11, 2026
how-to

sign everything you publish

Priya Raghavan · Feb 24, 2026