BlockchainAnddistributedledger.adoc

Blockchain and distributed ledger

Meta Trend	Software Development and Patterns
Title	Blockchain and distributed ledger
Description	Distributed ledger technology based on cryptographic systems that manage, verify and publicly record transaction data; the basis of "cryptocurrencies" such as bitcoin - (World Economic Forum).
What is new or emerging?	Over recent years, there has been a steady increase in the level of industry interest in distributed ledgers. Propelled by the apparent success of cryptographic currencies such as Bitcoin.
Why might it matter?	Distributed ledger technologies such as Blockchain are now being explored in application areas such as land registration [1], law enforcement trust models for sharing digital evidence (e.g. collected from body-worn cameras) [2], the next generation of space technologies [3] and several others.
Horizon	Next: Developments are underway in OGC Standards Program.
Impact	Disruptive: Distributed ledger technologies change the market place and institutional policy regarding trust.
Gartner Hype Curve phase
Technology Readiness Level	TRL-3 in OGC activities.
Discussion Issue	Discussion of Trend on GitHub
References	- 1. The Land Registry in the blockchain - 2. FOAM–The Consensus Driven Map of the World - 3. Beyond Bitcoin Leveraging the Blockchain for Space 4.0
Examples	URL to technology implementation examples
Geospatial Tech Category	Databases, Data models, Semantics, Mark-up Languages
OGC Working Groups	An OGC Ad-hoc Session was held on Geospatial Standardization for Distributed Ledger Technologies