GeoBlockchain.ai documents the history and evolution of the GeoBlockchain Framework — from its research origins and doctoral work to publications, public presentations, applied exploration, and related work entering the U.S. patent record.

# GeoBlockchain

GeoBlockchain.ai is an research-history website documenting the evolution of the **GeoBlockchain Framework**, a geospatial research framework developed through research led by **Constantinos Papantoniou, Ph.D.** The site traces the work from early exploration and public presentation through formal research, publications, application examples, and related U.S. patent records.

## What
GeoBlockchain explores how distributed-ledger records can be connected with geographic context and geographic information systems (GIS). The research focuses on spatial provenance, verification, traceability, authoritative information, and trusted geospatial systems.

## Why
A distributed ledger can support tamper-evident records. Geographic context adds the spatial dimension needed to understand where a transaction, asset, boundary, or event applies. The research asks how those capabilities can be combined in practical geospatial workflows.

## How
Published work describes combinations of distributed ledgers, spatial data, GIS workflows, REST APIs, and application-specific rules. Research prototypes and examples include land ownership and supply-chain workflows.

## Timeline
- **2018 — Public presentation:** GIS + blockchain research was presented at the Esri Business Summit. The presentation marked public discussion of work already underway.
- **2019 — Public discussion:** GeoBlockchain appeared in business and industry media, including supply-chain discussions.
- **2020 — Formal research:** Conference publications examined implementation criteria and spatial-analysis workflows.
- **2021 — Framework:** Doctoral research formally documented and evaluated the GeoBlockchain Framework, with related peer-reviewed research on enterprise criteria and use cases.
- **2022–2025 — Patent record:** Related work entered the U.S. patent record.

## Attribution and roles
- **GeoBlockchain Framework / research:** developed through research led and primarily authored by Constantinos Papantoniou, Ph.D.
- **Brian Hilton, Ph.D.:** doctoral chair, research collaborator, and co-author on relevant publications.
- Brian Hilton, Ph.D. — LinkedIn: https://www.linkedin.com/in/brian-hilton-ph-d/
- **Related patent records:** document related map-data authentication work.

The spelling **Constantinos Papantoniou** is used in the public patent record; **Constantinos Papantoniou, Ph.D.** is the name used on this research site.

## Core research

### GeoBlockchain: The Analysis, Design, and Evaluation of a Spatially Enabled Blockchain
- Author: Constantinos Papantoniou
- Year: 2021
- Type: Doctoral dissertation
- Institution: Claremont Graduate University
- Role: Formal documentation and evaluation of the GeoBlockchain Framework
- Source: https://scholarship.claremont.edu/cgu_etd/284/

### Enterprise Solutions Criteria in the Age of GeoBlockchain: Land Ownership and Supply Chain
- Authors: Constantinos Papantoniou and Brian Hilton
- Year: 2021
- Type: Conference paper
- Venue: Hawaii International Conference on System Sciences (HICSS-54)
- Source: https://aisel.aisnet.org/hicss-54/li/research/3/

### Selecting Implementation Criteria in the Age of GeoBlockchain
- Author: Constantinos Papantoniou
- Year: 2020
- Type: Conference paper
- Venue: Americas Conference on Information Systems (AMCIS 2020)
- Source: https://aisel.aisnet.org/amcis2020/data_science_analytics_for_decision_support/data_science_analytics_for_decision_support/15/

### Workflows and Spatial Analysis in the Age of GeoBlockchain: A Land Ownership Example
- Authors: Constantinos Papantoniou and Brian Hilton
- Year: 2020
- Type: Conference paper
- Venue: AutoCarto 2020
- Source: https://cartogis.org/docs/autocarto/2020/docs/abstracts/3e%20Workflows%20and%20Spatial%20Analysis%20in%20the%20Age%20of%20GeoBlockchain%20A%20Land.pdf

## Selected public references
- WhereNext Magazine, "Think Tank: Blockchain Evolves into Geoblockchain": https://www.esri.com/about/newsroom/publications/wherenext/geoblockchain-think-tank
- Forbes, "How the Modern Supply Chain Is Evolving": https://www.forbes.com/sites/yasamankazemi/2019/06/27/how-the-modern-supply-chain-is-evolving/
- WhereNext Magazine, "Geoblockchain Portends Better Supply Chain Management": https://www.esri.com/about/newsroom/publications/wherenext/food-spoilage-and-geoblockchain
- WhereNext Magazine, "Diamonds and Geoblockchain": https://www.esri.com/about/newsroom/publications/wherenext/diamonds-and-geoblockchain
- 2018 Esri Business Summit presentation: https://www.youtube.com/watch?v=3mSCd9QObko
- ISPRS Student Consortium interview: https://sc.isprs.org/media/3fdl0ton/vol17_issue2_final.pdf

## Patent record
Related work entered the U.S. patent record.

- Granted patent record: https://patents.google.com/patent/US12399028B2/en