We Built a 3-Layer Audit Trail (AI + GPS + Blockchain) to Eliminate Greenwashing in Ocean Conservation

Most environmental charities ask you to trust them. We built a system so you don't have to. I'm Valentin, co-founder of Thriving Planet Association, a Swiss nonprofit that recovers ocean plastic. But this isn't a fundraising post dressed up as a tech article. It's about a real engineering problem we had to solve: how do you make environmental impact verifiable, tamper-proof, and visible to anyone who funds it? Here's what we built and why it matters for anyone working at the intersection of technology and social good.