This is The Guardian.

Hey, it's Babberton de Alessi here.

I've just got back from an epic road trip around the island of Ireland.

From exploring natural wonders and stunning cost of views to chilling in a seaweed bath.

It's a vibe.

Best of all, you don't have to pick between the Causeway coastal routes and the Wild Atlantic Way.

You can experience both iconic routes in one unforgettable trip.

Explore everything Ireland has to offer at the Guardian.com forward slash tourism island.

This message was paid for by Tourism Island.

The Guardian Archive Longread. Longeranian. Hi, this is Saman Subramanian.

I'm here to introduce food fraud and counterfeit cotton, the detectives untangling the global

supply chain, which was a Guardian Long Read, published in 2021.

Somewhere in the Daily Press, or maybe in a business paper, I'd read about this company called Auditaine, a company that was based in New Zealand, and that was testing organic food

materials, organic textiles, anything that was made from nature or grown locally anywhere,

they were testing these products for their chemical composition. And apparently these tests have

grown so advanced over the last 20 years that you can determine virtually to within a square

kilometer where a particular grape was grown or where coffee comes from.

And that got me thinking why there was this need in the first place to test these products,

why companies and governments and nonprofits wanted to test these products and why provenance

matters so much. We value providence a lot in other kinds of domains. We value providence a lot in other kinds of

domains. We value provenance in art because we want to know who's held a particular artwork

or who has sold it and bought it in the past. But we rarely think about provenance except in the

...