https://pressroom.prlog.org/HorizonShield/ About The Horizons Co., Ltd. - HORIZON SHIELD: AI-powered construction cost diagnostic whose methodology is permanently anchored to Bitcoin Block #949356 via OpenTimestamps. Built by a 30-year construction veteran turned AI engineer to close Japan's construction information gap. https://www.prlog.org/13146199-30-year-construction-veteran-launches-bitcoin-anchored-ai-diagnostic-for-japanese-renovation-market.html Tokyo-based AI engineer with three decades of carpentry experience publishes diagnostic methodology to Bitcoin Block #949356; technical documentation available open-access via Zenodo and engrXivSat, 16 May 2026 03:18:37 GMT