Who contributed

“The Semiyarka survey selected 35 metallurgical samples and found evidence of copper and tin-bronze production, including processes reaching up to 12 wt% tin.” · 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.