Who contributed

“The Decoder reported that GPT-6 Astra used one-third as many compute steps as GPT-5.6 Sol and one-fifth as many as Claude Opus 5 on coding tasks.” · 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.