Taraxa Weekly Tech Update: 2019 Week 44

This week was both SF Blockchain Week and also the week we released our second monthly update, “Aphrogenes”, to our Taraxa testnet. I encourage you to read more about it.

Taraxa Explorer

• Added check for missing data due to interruption in connection to node
• Enhanced logging system
• Fixed integration bugs in dockerized deployment
• Added corresponding DAG graph in Block page and highlight selected block in DAG
• Added segmentation lines for levels in DAG graph
• Added segmentation lines for periods in DAG graph
• Removed ancestor nodes in DAG graph if missing data in explorer
• Fixed connection status
• Fixed layout bugs in mobile

Taraxa Full Node Codebase

• Added persistent mapping from DAG blocks to PBFT period to correctly report period on any RPC request for a block
• Added persistent mapping from PBFT period to PBFT schedule blocks
• Created new RPC method fro pulling schedule blocks per period
• Refactored database access to only use lower level interface
• Modified block and transactions memory cache implementation for new database interface
• Integrated VDF (Verifiable Delay Function) into node codebase
• Created VDF unit tests
• Began implementation of VDF + VRF Proof-of-Stake based DAG block proposer scheme

PBFT Consensus and Execution Schedule Layer

• Implemented PBFT chain syncing with bundles of cert votes
• Added cert votes into database when syncing PBFT chain
• Implemented cert vote verification during PBFT chain syncing
• Modified database access to only use lower level interface
• Worked on new replay protection scheme to extend Ethereum based transaction nonces

Stay tuned.

• website: taraxa.io
• blog: medium.com/taraxa-project
• discord: discord.gg/WaXnwUb
• reddit: www.reddit.com/r/Taraxa_Project/
• telegram: t.me/taraxa_project
• twitter: twitter.com/taraxa_project