The document discusses blockchain technology, detailing the differences between permissioned and permissionless blockchains, including their features, use cases, and selection criteria. It highlights examples of projects in various sectors, such as government and banking, and outlines potential future directions for blockchain development. Key considerations for implementing blockchain include problem solving, participant governance, and ensuring immutability and provenance.

1. Blockchain: Beyond the Hype
- Permissioned & Permissionless
Feb-2019, Amsterdam
https://github.com/vikpande

2. Agenda
- Types
- Key features
- Purist view
- Criteria to choose
- Use cases
- Examples

3. Types of Blockchain
Permissioned -
A blockchain which restricts who can join the network and what transactions can
be performed ( read,write on the ledger).
Permissionless -
No restrictions on who can join the blockchain network, meaning that anyone can
read, write, or participate within the blockchain network.

4. A deeper look :
Private
Public
Permissionles
s
Permissioned
Anonymity
Trust
Permissionless
Public
Permissioned
Public
Permissionless
Private
Permissioned
Private
Anyone can validate
the protocol - POW
Anyone who meets criteria can
validate the protocol - POS
FBA protocol
Consortium members can
valadiate the protocol - PBFT

5. Permissioned
➔ Faster
Due to size of network
➔ Private or consortium owned
➔ Management of networks
➔ Trust bound
➔ Speed & low energy consumption
➔ Verified
Permissionless
➔ Slower
Due to size of network
➔ Open to public
➔ Public ownership
➔ Trust-free
➔ Slow but eliminate middlemen
➔ Anonymous/Pseudonymous

6. The Purist view
Public & Open
Private & Open
Public & Closed
Private & Closed
Write data - Anyone
Read data -
Selective
Write data - Anyone
Read data - Anyone
Write data - Selective
Read data - Federated
Write data - Selective
Read data - Anyone in the
network

7. Few use cases
Public & Closed
Private & Closed
Public & Open
Private & Open
● Voting - general Public
● Voting records- Officials
● Consortium
● Military
● Government/ Law
● Currencies
● Betting
● Video Games
● Supply Chain
● Government financial info
● Corporate revenue

8. Criteria to
choose
Based on :
- Problem to solve
- Read &/Or Write
- Participants in the network
- Benefits you want to achieve
- Governance
- ..more

9. Criteria based on problems BC solves
Consensus
Participants able to
agree on validity of
transaction
* These benefits can be combined based on use case.
Finality
Shared ledger to
prove ownership &
transaction
completion
Immutability
Avoid tampering of
records/transactions
Provenance
Track & trace
assets

10. Examples of Production projects
➔ Food
IBM food truck - Hyperledger Fabric & Cambio coffee - Hyperledger Sawtooth.
➔ Airline
NIIT Technologies. Chain.m - Hyperledger Fabric
➔ Government
Government of Canada ( British Columbia) Data Exchange - Hyperledger Indy.
➔ Banking
Commonwealth bank of Australia. Bonds - Ethereum.
➔ Data privacy
Humanity.co. Personal data ownership - Hyperledger Indy

11. Possible future direction
2020 2020- 2025 2025 2030 >
<2 years
Interoperability
2-5 years
Key platforms and players
prove the possibility
Decentralized Identity
5+ years
Goes Mainstream - World
trading on blockchain
Quantum introduction

12. Guide on choosing blockchain

13. Contact me
● vikpande@gmail.com
● https://nl.linkedin.com/in/vikpande
● https://github.com/vikpande