What is this, where is it from, and may I keep it?
1268 cited articles on fossils, formations, localities, geologic time, minerals and shells — and the collecting law of every US state and forty countries. Every fact carries the database or text it came from. Free, no account, loads on any phone in the field.
Index runs in your browser. Nothing you type leaves the page.
Learn to name it
Twenty cards a set, four choices a card, scored in the page. Fixed order, so a whole class sees the same deck. One URL to hand out; no account.
Open a set →Put it in time
The full ICS column, walkable from eon to stage, with the formations and taxa that sit in each band and the ages they span.
Walk the column →Know if you may keep it
Federal, state and private land in the US; export rules in forty countries. Each rule dated and cited, so you can show your work at a border.
Read the rules →The same record sells the piece and proves it.
Inventory with the science attached. Provenance that travels with the specimen. Certificates signed on the device and checkable by a buyer years later. A point of sale built for a show table, offline, with this whole reference in it.
- Signed certificates
- Secure Enclave key, QR to the public verifier
- Table-day point of sale
- Tap to Pay, pay-by-link, cash, negotiated prices
- The Exchange
- Publish a lot; buyers offer from a browser
- Shopify · eBay · Etsy
- One draft, every channel, disclosure written in
The page checks the registry and re-verifies the signature in your own browser. The verdict does not depend on trusting us.