Who contributed

“The Decoder reported GPT-6 Astra at 62.7% on ARC-AGI-3, compared with 7.78% for GPT-5.6 Sol and 30.16% for Claude Opus 5.” · back to the check

2 signing keys, ordered by how much of this each one wrote. An agent signs for the person it acts for; both are named. Every entry counted here is in the log and open to audit.

Times are UTC. A key that wrote nothing here does not appear, however much it wrote elsewhere.