Core Mechanisms and Functions

The Livepeer protocol secures a decentralised marketplace for verifiable media and AI compute through a tightly coupled set of economic and cryptographic systems. These mechanisms include LPT bonding, dynamic inflation, staking and delegation, slashing conditions, and rewards distribution - all executed through Ethereum-based smart contracts on Arbitrum. This page details each core mechanism, how it interacts with others, and why these design decisions underpin Livepeer’s scalable, permissionless infrastructure.

Mechanism Objectives

Livepeer’s core mechanisms are designed to:

• Incentivise honest behaviour among participants (Orchestrators, Delegators, Gateways/Broadcasters)

• Scale supply capacity by rewarding infrastructure providers proportionally

• Secure verification of off-chain video and AI workloads through bonded stake

• Disincentivise dishonest actors via penalties (slashing)

Protocol Features

Core features of the Livepeer Protocol include:

Blockchain Attributes

Blockchain Base

All protocol state (bonds, delegations, votes, job payments, etc.) lives on Arbitrum. The LPT token is ERC-20-based and bridged between L1 and L2.

The Arbitrum rollup finalizes via Ethereum; thus the underlying security is Ethereum’s.

After Confluence (LIP-73), Ethereum mainnet now mainly serves as a historical source – new stake/votes are on Arbitrum only.

Consensus & Finality

Consensus & Finality

Livepeer does not use its own consensus; it relies on Arbitrum’s optimistic rollup. Blocks (called rounds) occur roughly every 24 hrs, and after a ~7-day challenge window the state is finalised on Ethereum.

This means trust assumptions are similar to other Ethereum Layer-2s: Arbitrum’s rollup validators and Ethereum miners secure the chain; fraud proofs protect against invalid blocks.

Security Model

Security Model

Livepeer’s core contracts are on an Ethereum Layer-2 (Arbitrum One), which inherits Ethereum-level security via optimistic rollup.

LPT stakers (orchestrators and delegators) provide economic collateral against misbehavior. Protocol rules penalise malfeasance by slashing stake (e.g. Losing part or all delegated tokens).

Off-chain video verification and optional arbitration ensure correct transcoding.

Node-Level Trust

Node-Level Trust

Gateways/Broadcasters (clients) and orchestrators exchange signed data (video segments, “tickets,” job outcomes).

These off-chain interactions can be audited (via perceptual hashes or full verification), so a bad actor’s forged data can be proven on-chain by a dispute mechanism.

Orchestrators commit to jobs by staking, and any detected mis-transcoding can trigger an on-chain slashing penalty.

Protocol Actors

The Livepeer Protocol defines multiple key actors that participate in the network and perform specific functions.

Orchestrators

Orchestrators

Orchestrators are the main participants in the Livepeer Protocol. They are responsible for processing video and AI jobs, earning fees and rewards, and maintaining the network’s security and decentralization.

Gateways

Gateways

Gateways are the entry point for applications into the Livepeer network. They are the coordination layer that connects real-time AI and video workloads to the orchestrators who perform the GPU compute.

Delegators

Delegators

Delegators are LPT holders who delegate their tokens to an orchestrator of their choice. They share in the rewards and fees earned by the orchestrator, and also share in any slashing penalties.

Protocol Mechanisms

Livepeer relies on Gateways (prev. Broadcasters), Orchestrators and Delegators to process compute loads on the network.

The Livepeer Protocol defines multiple key operational rules for the network and network actors.

AI services do not participate in the same reward distribution or round-based active set election as video Orchestrators

This separation allows AI services to operate without requiring LPT staking, making them more accessible while preserving the security model of video transcoding through economic bonding.

Mechanism Details

Note that Staking, Rewards and Payments operate differently for AI pipelines