
Captain's CDR Log #151: Three tools launched this week show developers building their own integrity stack
Captain Drawdown’s daily logbook on every CDR story, paper, and expert voice — so you don’t have to read them all. The CDR registry stack is bifurcating. Project developers are building their own pre-issuance integrity tools, while traditional registries quietly retreat to scheduling and certification. This week made the split impossible to miss. Three launches, read together, tell the story. Mati Carbon released a free app for stress-testing enhanced rock weathering data. The tool sits upstream of any registry. It is open-sourced. It is built by a developer answering the integrity question before a methodology asks it. EW (enhanced rock weathering, the practice of spreading crushed silicate rock on fields to accelerate natural CO2 mineralization) has a measurement problem, and Mati is solving it on its own terms. For background on the pathway, see our primer on enhanced weathering. ...








