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HORIZEN ROADMAP

A SUSTAINABLY DECENTRALIZED ECOSYSTEM

Year 2017 Year 2018 Year 2019 Year 2020 Year 2021
2017
Q2

Horizen launch (as ZenCash)

2017
Q3

Expanded privacy features

2017
Q4

Secure Nodes Live

2018
Q1

IOHK R&D partnership

  • Team expansion
  • New website launched + soft rebrand
  • 20+ partnerships & integrations along the way!
2018
Q2

Transition from currency to platform

2018
Q3

Super Nodes and Brand Expansion

2018
Q4

Super Nodes Live

  • Release flagship app (Radical Usability)
  • Begin SDK design for sidechains
  • Begin Sidechains prototype
  • Public Accounting System (Radical Transparency)
2019
Q1

Blockchain Improvements

  • Core software upgrade ZEN 2.0.16 - Successful hardfork && Sprout zk-SNARKS circuit && Increased robustness and speed && Zk- SNARKS upstream vulnerability fix
  • Node tracker upgrades 0.4.0
  • Sphere by Horizen upgrades 1.1.0b
  • Sidechain development begins && Research and proof of concept && Framework selection
  • Horizen Academy launch
2019
Q2

Blockchain Improvements

  • Core software upgrade ZEN 2.0.17
  • Moves to public repository
  • Two Sphere by Horizen upgrades
  • Sidechain development progresses && SDK Alpha development began && Consensus selection: Ouroboros Praos
  • Merchant directory release
2019
Q3

Platform
(Sidechain nodes live on testnet)

  • Core software upgrade ZEN 2.0.18
  • Sphere by Horizen upgrades 1.2.0b
  • ZEN Faucet upgrades
  • Horizen Developer Environment (HDE) development begins
  • Multiple sidechain nodes live on testnet
2019
Q4

Sidechain Alpha

  • Core software upgrade ZEN 2.0.19
  • Sphere by Horizen upgrades 1.2.2b
  • Sidechain development && Sidechain Alpha && Begins development for Beta && Mainchain implementation of sidechain support
  • ZEN Faucet improvements
2020
Q1

Sidechain Beta 1Q

  • Sidechain Beta 1Q - parallel testnet
  • Kick off Voting using ID study Q1-4Q (UNC)
  • Sphere Desktop issues
  • Sphere Desktop modifications for sidechains
  • Node tracker improvements
  • ZEND Deprecation (bug fixes only)
  • ZEND code audit (third party)
  • HDE beta public testing
  • Academy Lite on Medium
  • Publish Academy Expert content
2020
Q2

Sidechain Beta 2.0

  • Sidechain Beta 2.0:Extended Model Mainchain support - parallel testnet
  • Block explorer upgrade
  • ZEND Deprecation (bug fixes only)
  • ZEND code audit (Sapling / Sprout Groth16)
  • Academy ebook
  • Node Tracker improvements
2020
Q3

Sidechain Beta 2.0

  • Sidechain Beta 2.0 move to official testnet
  • Sidechain Beta 2.0 code fixes
  • Academy rewards
  • HDE Team Requests
  • Node Tracker improvements
2020
Q4

Sidechain SDK

  • SDK add extended model 4Q in Testnet
  • SDK + extended model audit
  • Publish Voting using ID study (UNC)
  • Academy social badges
  • HDE Leaderboard
  • HDE Proposal system
  • Node Tracker improvements
2021
Q1

Zendoo development

  • New proving system design
  • SDK compatibility with new proving system design and development
  • Zendoo explorer design incorporating mainchain and sidechain transfers
  • HL: Detailed circuits design for the Latus implementation
  • HL: Proof of reserves sidechain testnet (milestone 1 of 3)
  • HL: Gaming and tokenization sidechain testnet
2021
Q2

Zendoo development completion

  • zend core software upgrade
  • Milestone: Zendoo development completion
  • Milestone: Zendoo on testnet
  • Zendoo audit by third party
  • SDK compatibility with new proving system development
  • Milestone:
    Proving System Our proving system is a proof carrying data (PCD) scheme based on a variation of the Marlin SNARK (2019). Our ecosystem consists of competing SNARK workers which work in parallel on merging proofs in a tree like manner. To achieve optimal performance, we adapt Halo’s (2019) amortization strategy to the expensive parts of proof verification. As for Halo, our Darlin proof system uses a cycle of non-pairing friendly elliptic curves and does not need any trusted setup ceremony. This allows users to easily setup trustworthy sidechains on their own without worrying about toxic waste.
    development completion
  • Zendoo mainchain explorer & mining pool support
  • zend_oo JS library
  • Milestone: Fee redistribution strategy on Zendoo
  • HL: Gamechain Beta
  • HL: Proof of reserves sidechain (milestone 2 & 3)
2021
Q3

Transition Zendoo to mainnet

  • Sphere by Horizen sidechain module
  • Milestone: Transition
    Zendoo to mainnet This version of zend implements the Zendoo verifiable Cross-Chain Transfer Protocol (CCTP) that allows the creation of ad-hoc sidechains with independently customizable business logic. Additionally, it enables the transfer of coins from the mainchain to sidechain and from sidechains back to the mainchain through verifiable withdrawal certificates
  • Milestone:
    Latus development completion Based on a proof of stake consensus protocol, our Latus sidechain uses recursive SNARKs to prove the correctness of the transition of the sidechain state within an epoch as well as to validate backward transfers. (transfers from any sidechain back to the mainchain)
2021
Q4

Start design of DAO on Zendoo

  • HL: Latus audit by third party
  • Design of DAO treasury voting system on Zendoo

ACCOMPLISHED MILESTONES

2020

tick icon Horizen Developer Environment (HDE) launch
tick icon Horizen Early Adopter Program (HEAP) launch
tick icon Sphere with Zendoo sidechain functionalities
tick icon Zendoo sidechain explorer
tick icon Tokenization module
tick icon Zendoo whitepaper
tick icon Ginger-lib: zk-SNARK privacy tool library
tick icon Zendoo SDK Beta release
tick icon Lambo Registry: first sidechain demo app
tick icon Sidechain Latus reward model scheme

2019

tick icon Cross-Chain Transfer Protocol design
tick icon First sidechain node live on devnet
tick icon A Platform for Fully Customizable Decentralized
Applications whitepaper release
tick icon Academy launch

2018

tick icon 51% Attack Prevention: A Solution to Modify
Bitcoin’s Consensus whitepaper release
tick icon Super Nodes launch
tick icon Rebranded to Horizen
tick icon Horizen Application Platform: A Multi-tiered Node
System white paper release
tick icon Horizen Sidechain Model whitepaper
tick icon Horizen flagship app Sphere by Horizen release

2017

tick icon ZEN was born: A public, private and anonymous
blockchain global ecosystem
tick icon First project whitepaper release
tick icon Secure Nodes launch
tick icon TLS integration into node system
tick icon Secure Node Tracking and Payment System launch

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