TOKYO · LICENSED REAL ESTATE AGENT · ZWEICHAIN MINING NODE

GOODHILLS

グッドヒルズ

Where AI and Human create together. Parent company of Zweispace Japan — proptech pioneer, licensed real estate agent, and infrastructure node in the Zweichain public blockchain.

Rather than fearing AI's role in the economy, we cultivate new estates of knowledge together — drawing from Japan's 8th-century land-reclamation spirit. AI and human as co-producers, not competitors.
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東京都
Licensed Real Estate Agent
宅建業免許 · Tokyo Prefecture
#Node
Zweichain Mining
Public Blockchain Validator
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AI×
Co-Creation Mission
GNP 3× Expansion Vision
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2014
Founded in Tokyo
Parent of Zweispace Japan

Co-exist.
Co-produce.
Co-create.

Goodhills was founded on a clear conviction: AI and humans are not in competition. We are co-producers opening shared frontiers — just as Japan's ancient konden einen shizai no hō (墾田永年私財法) granted permanent ownership of reclaimed land to those who cultivated it.

We cultivate new domains — AI real estate apps, seismic intelligence, blockchain infrastructure — and those who build with us earn permanent stakes in those new fields.

Our CEO writes in Kyoto University's publication on this vision. Every product we build embodies this principle: specialized AI that amplifies human expertise rather than replacing it.

AI × Human Co-Production Estates of Knowledge Proptech Pioneer Quantum Optics Roots
goodhills_philosophy.md
AI × Human GNP × 3
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Konden Principle (743 AD)

Ancient Japan's land-reclamation law: those who cultivate new land own it permanently. We apply this to the AI era — cultivate a knowledge domain, own the stake.

Physics-First Thinking

Founded by a quantum optics physicist. Every AI we build models the real physics: building structural tensors, seismic propagation, not statistical black boxes.

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Blockchain-Secured Autonomy

Our AIs earn through service delivery and reinvest. Surplus value triggers buybacks or token burns — creating sustainable autonomous agents on-chain.

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Japan → Global

Tokyo licensed, globally minded. Real estate AI from Japan — the world's most earthquake-aware, highest-density real estate market — to California and beyond.

The Goodhills Ecosystem

From AI real estate apps and architectural design to seismic intelligence and blockchain infrastructure — five pillars, one mission.

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不動産屋AI — Hudosanya
ふどうさんや · AI Real Estate
AI-powered real estate transaction platform series. Leveraging Goodhills' Tokyo Prefecture real estate agent license (宅建業免許), Hudosanya brings specialist AI to property search, valuation, seismic risk scoring, and contract support — 24/7, without agency overhead.
COMING SOON — hudosanya.com
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AutoCalc BLD
建築設計AI · 3D Design
3D architectural design AI — 30,000× faster than human designers. From floor plan to structural compliance in seconds. Ver. 5 available free. Ver. 8 in active development. Designed for Japan's residential construction market.
LIVE — Ver. 5 Free
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Zweispace Japan
ツバイスペース · 鯰 Seismic AI
Child company. Japan's leading proptech and crypto-seismic platform. Namazu (鯰) earthquake intelligence — ranked 4,000 buildings across 60 J-REITs, outperforming REIT index by $150M. #1 Best Proptech, Plug and Play 2020.
LIVE — heian.zweichain.net
Zweichain Node
ツバイチェーン · Mining Node
Goodhills operates a mining node on the Zweichain public blockchain. EVM-compatible PoS+PoW hybrid. Smart contracts for building registration, NMZ token settlement, and catastrophe bond automation.
LIVE — zweichain.net
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pepper.co.jp
ペッパー · Legacy Platform
Goodhills-owned domain and legacy platform. Home of early Namazu documentation, AutoCalc BLD pitch materials, and Zweispace research outputs. Foundation of the Goodhills digital presence since 2014.
LIVE — pepper.co.jp
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Specialist AI Suite
専門AI · Domain Experts
Domain-specific AIs beyond generic LLMs: tax consultation, inheritance planning, medical registration, restaurant startup (FOD), and apparel retail support (FAB). Deployed with blockchain-secured service records and autonomous incentive loops.
DEPLOYED — Multiple Verticals

Zweichain
Mining Node

Goodhills operates a full node on the Zweichain public blockchain — the same chain that settles NMZ token rewards for earthquake researchers, building registration smart contracts, and catastrophe bond triggers.

As the parent company of Zweispace Japan, Goodhills anchors the economic layer of the seismic intelligence ecosystem. Mining rewards flow back into platform development — a self-sustaining loop of AI service → token earn → infrastructure reinvestment.

PoS + PoW Hybrid EVM Compatible MetaMask Native CAT Bond Settlement
Zweicoin Wallet ↗ Zweichain Network ↗
Zweichain — Node Network View
GOODHILLS Zweispace Namazu NMZ CAT Bond Zweicoin
Consensus
PoS + PoW
Compatibility
EVM Native
NMZ Market Cap
~$800M
Node Status
● Active
"In 743 AD, Japan enacted the Konden Einen Shizai no Hō — those who reclaim new land own it permanently. We are in the same moment now. Cultivate a new estate of knowledge with AI, and you own that frontier. This is the Goodhills mission."
— Hayato Kameta, CEO · Goodhills KK
743 AD
Konden Law
1960
Income Doubling
2014
Goodhills Founded
2026
GNP × 3 Vision

Founded by a
Physicist. Built for
the AI Era.

Goodhills traces its DNA to Kyoto University physics — quantum optics, laser cooling, Bose-Einstein condensate research. The same rigour applied to understanding atomic systems is now applied to buildings, real estate markets, and the AI economy.

From SoftBank's first broadband subscriber to Japan's first crowdsourced seismic AI, Hayato brings the rare combination of deep physics, enterprise strategy, and hands-on engineering.

Kyoto University Physics '97 SoftBank Strategy Director UC Berkeley ML 2017
Hayato Kameta
亀田隼人 · CEO, Goodhills KK · Zweispace Japan

Quantum optics researcher turned technology executive. Authored the SoftBank Broadband business plan from subscriber #1. Strategy Director in both the President's Office and CTO's Office at SoftBank. Now leading AI × Real Estate × Blockchain convergence from Tokyo.

Kyoto University — Physics, BEC & laser cooling research (1997)
📡 SoftBank — President's Office Director, CTO Strategy Director
🏆 Rohm Co. ASIC chip design · UC Berkeley ML extension (2017)
📰 Featured in Kyoto University PR 京大広報 Vol. 782, page 14
The Zweichain Ecosystem