KeldrionBlog
Notes from the fairs we attend and the work in between.
2026-09-18
Kaimeter v0.1.0: the aluminium rule bundle
The first release of the implementation encodes the CBAM methodology for primary aluminium as executable, hash-identified Rust. No prover yet.
2026-09-16
Prove, Don't Disclose: a working paper, and a Kaimeter rewrite
We published a working paper on verifiable CBAM compliance - rules as code plus zero-knowledge proofs - and we're rebuilding Kaimeter from scratch to become its reference implementation.
2026-09-04
Kaimeter 0.1.2 is available on GitHub
The open-source CBAM compliance toolkit for EU importers: one record per consignment, the 50-tonne line watched, certificate cost projected, and a declaration-ready export. Free, offline, and auditable.