Origin Document

This is the first milestone taken from the V1 Roadmap.

Goals

• Cosmos SDK (i.e Tendermint) equivalent for a proof-of-stake blockchain custom-built for Pocket
• Basic LocalNet development environment

Deliverables

Client / Interface

• Keybase - MVP functionality to interact with keys (e.g. import, create, export, etc...)
• CLI - MVP to interact with a PoS blockchain (e.g. send, stake, unstake, set param, etc...)
• RPC - MVP to receive and process commands from the CLI

Tooling

• LocalNet infrastructure - enable local development
• Logging infrastructure - standardized logging with basic visibility into telemetry

Utility

• PoS Logic - for each protocol level actor (stake, unstake, pause, unpause, jail, etc…)
• Account logic - send & receive funds

Utility - Validator rewards

• Slashing & jailing for unsigned blocks
• Slashing & jailing for double signing blocks
• Reward Validators for producing a block

Consensus

Consensus - BFT

• HotPOKT - Hotstuff implementation w/ pacemaker module
• Safety & liveness - tests and logging for visibility
• Validation - replica block validation

Consensus - Leader election

• Primary - VRF leader selection
• Secondary - Round robin leader selection
• Validators voting power proportional to stake_tokens/total_stake_tokens

Consensus - State Sync

• Block-by-block - MVP implementation of a state sync w/ block replay
• Snapshot - basic sync from a prior snapshot
• Node types - validators, other protocol actors, and full nodes

P2P

P2P - RainTree

• MVP RainTree implementation
• Addressbook management
• Direct P2P message sending
• Message gossip

P2P - Networking

• Basic network communication (retry, send, receive, etc…)
• Network security (TLS, etc…)
• Networking issues debugging & functionality

P2P - Configuration

• Peer discovery
• Dynamic peer addition / removal

Persistence

Persistence - State Storage

• Postgres infrastructure
• SQL - logic & implementation for basic PoS read/write operations

Persistence - State Commitment

• Commitment for Postgres based state storage
• State hash - Merkle tree-based implementation for state storage
• Block store - key-value block store

Block Production (cross-module)

• Mempool reaping
• Tx de-duplication
• Tx Indexing
• Tx validation
• Block production

Non-goals

• Pocket-specific utility
• Devnet infrastructure
• Extensive E2E automated testing