Overview

Introduction

Compass-TSS is the off-chain client software for participating in MAP Protocol v2's TSS (Threshold Signature Scheme) network. It enables Validators to become Maintainers and participate in cross-chain signing operations.

What is Compass-TSS?

Compass-TSS is a node software that:

• Observes cross-chain events on multiple chains

• Participates in TSS key generation (KeyGen)

• Signs cross-chain transactions collaboratively (KeySign)

• Communicates with other Maintainer nodes via P2P network

System Requirements

Hardware Requirements

Component	Minimum	Recommended
CPU	4 cores	8+ cores
RAM	8 GB	16+ GB
Storage	100 GB SSD	500 GB SSD
Network	100 Mbps	1 Gbps

Network Requirements

• Static IP or reliable dynamic DNS

• Open ports for P2P communication

• Low latency connection to other Maintainers

Prerequisites

• Running MAP Relay Chain Validator node

• Registered as Validator with sufficient stake

• Registered as Maintainer on-chain

Architecture

┌─────────────────────────────────────────────────────────────────┐
│                      Compass-TSS Node                            │
│                                                                  │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐              │
│  │  Observer   │  │   Signer    │  │  P2P Node   │              │
│  │             │  │             │  │             │              │
│  │ - Watch     │  │ - KeyGen    │  │ - Discovery │              │
│  │   chains    │  │ - KeySign   │  │ - Messaging │              │
│  │ - Parse     │  │ - Key       │  │ - Broadcast │              │
│  │   events    │  │   storage   │  │             │              │
│  └─────────────┘  └─────────────┘  └─────────────┘              │
│         │                │                │                      │
│         └────────────────┼────────────────┘                      │
│                          │                                       │
│                   ┌──────┴──────┐                                │
│                   │   Database  │                                │
│                   │  (LevelDB)  │                                │
│                   └─────────────┘                                │
│                                                                  │
└─────────────────────────────────────────────────────────────────┘
         │                 │                 │
         ▼                 ▼                 ▼
   ┌──────────┐     ┌──────────┐     ┌──────────┐
   │  Source  │     │   MAP    │     │  Other   │
   │  Chains  │     │  Relay   │     │Maintainer│
   │          │     │  Chain   │     │  Nodes   │
   └──────────┘     └──────────┘     └──────────┘

Key Features

Multi-Chain Observation

• Monitors events on all connected chains

• Parses deposit and withdrawal events

• Submits observations to MAP Relay Chain

TSS Operations

• Participates in KeyGen when elected

• Signs transactions via TSS KeySign

• Securely stores key shares

P2P Network

• Discovers other Maintainer nodes

• Exchanges TSS protocol messages

• Maintains reliable connections

Rewards and Penalties

Rewards

• Share of cross-chain transaction fees

• Proportional to participation in signing

Penalties (Slashing)

Violation	Consequence
Offline during KeySign	Slash points
Failed KeyGen participation	Jail period
Double signing	Severe slash + jail
Invalid observations	Slash points

Comparison with Compass (v1)

Feature	Compass (v1)	Compass-TSS (v2)
Role	Maintainer + Messenger	TSS Maintainer
Function	Light client updates	TSS signing
Registration	Permissionless	Must be Validator
Key Management	No keys	TSS key shares
Consensus	Independent	Threshold (2/3)

Quick Start

1. Set up Validator: Run MAP Relay Chain validator node

2. Register: Register as Maintainer on-chain

3. Install: Install Compass-TSS software

4. Configure: Set up configuration file

5. Run: Start Compass-TSS node

Next Steps

• Requirements - Detailed hardware and network requirements

• Register as Maintainer - How to register on-chain

Support

For issues and questions:

• GitHub Issues: compass-tss repository

• Discord: MAP Protocol community