Basic ttlink — human-followable links from outputs to sources
Not TTLLM
Open weights with closed data and closed training code
Marketing claims without re-hashable artefacts
Paywalled verification of public-core claims
Prior art
We stand on Ai2 OLMo / OLMoTrace, LLM360, and related process-open work. Credit them. Differentiate with artefacts: free-core covenant, org transparency domains 1–10, and usable ttlink.