sn38-chrono-2016-b

Candidate B for Bittensor SN38 ChronoLLM round 7 / cutoff year 2016.

• Architecture: sn38-nanochrono (registered in chronollm/sn38)
• Params: 2,018,511,234 (< 2.2B)
• Init: anacoluthe89/chrono-2015@3062e6d078e69c5b3079f126851d30531fef1665
• Same training setup as Candidate A (echoctx/sn38-chrono-2016), seed=123
• Data: 2016-safe quality pairs only (no post-cutoff dumps)
• Method: SV uniqueness σ=0.08 + packed completion SFT + leak-aware goldmix
• Greedy generation_config max_new_tokens=50, no chat_template

HF upload is not a subnet registration.