US tuna giant Bumble Bee is using blockchain technology to trace yellowfin tuna from landing to the marketplace, reports Fortune.

The San Diego-based seafood giant has been running the program for about a month on its “fair trade” certified frozen tuna brand, Natural Blue by Anova.

The tuna is sourced from small-scale fishing operations based on east Indonesian islands and it is set to go on sale in the US in the coming weeks.

“We’ve been doing traceability for a long time and we decided to leverage new technologies to make it even more secure,” said Tony Costa, Bumble Bee’s chief information officer.