Chain of custody for tattoo supplies
Track inks, needles, and cartridges from manufacturer through distributor to studio session. Modeled after cannabis seed-to-sale systems, built for EU REACH and incoming FDA MoCRA compliance.
Article 33 already requires manufacturers to track and communicate substance information. Studios need proof of compliance.
The Modernization of Cosmetics Regulation is setting mandatory supply chain traceability for cosmetics — tattoo ink is next.
Without a chain, manufacturers can't notify downstream studios of contaminated lots, and studios can't identify affected clients.
Publish lot data: ID, product, produced date, expiry.
Log transfer: receive lots, track inventory, downstream visibility.
Log session: which lots were used in today's appointment.
Consent form: client signs, chain closes, traceability complete.
Publish lot data via webhook. Receive recall broadcasts. Demonstrate regulatory compliance to distributors and regulatory bodies.
$99–$199/month. Downstream lot visibility, recall query API, one-click downstream notifications. Competitive edge with studios.
Free tier. Consent form feeds the chain automatically. No extra data entry. Regulatory compliance built in.
Open standard
BatchPath is an open chain-of-custody specification. Anyone can implement it. The spec defines entities, events, and queries — not a proprietary platform. Manufacturers, distributors, studios, and third-party developers build on the standard.
View spec v0.1BatchPath's data model and event architecture are adapted from Metrc, the cannabis seed-to-sale tracking system used across US regulated markets. The core insight: supply chain traceability is infrastructure, not proprietary IP. Same principle applies to tattoo supplies under REACH and MoCRA.