Sahyadri Consensus: Proof-of-Work + DAG

Deterministic finality with parallel block processing — built for the sovereign digital economy.

Consensus is the mechanism that allows thousands of independent nodes across the world to agree on a single shared state without relying on any trusted authority. Sahyadri introduces a hybrid consensus model that combines the proven security of Proof-of-Work with the parallel processing capabilities of a Directed Acyclic Graph (DAG).

Instead of forcing miners to compete for a single block every block interval, Sahyadri allows multiple valid blocks to exist simultaneously. These blocks become part of the SahyadriDAG where they reference previous blocks through parent relationships while still contributing Proof-of-Work to the network. Every valid block is accepted — no wasted computation.

Why Proof-of-Work?

Proof-of-Work has demonstrated continuous security for over a decade in production blockchain networks. Sahyadri preserves these security guarantees while removing the throughput limitations of a strictly linear blockchain. The network remains permissionless — anyone with computational resources can participate in mining and contribute security.

SahyadriX PoW: Memory-hard algorithm requiring 16MB random-access memory per hash operation. ASIC-resistant by design, optimized for CPU and GPU mining.

Why SahyadriDAG?

Traditional blockchains discard competing blocks as orphan blocks whenever two miners discover blocks simultaneously. This results in wasted computational work and reduced throughput.

SahyadriDAG instead accepts multiple blocks generated during the same period. Every valid block contributes cumulative Proof-of-Work to the network and becomes part of the DAG structure.

Multiple blocks may exist simultaneously without conflict.
Zero orphan rate — every block contributes to security.
10,000 TPS throughput capacity.
1-second deterministic finality.
Reduced mining waste — no discarded work.
Optimal propagation across global nodes.

Consensus Flow

Transaction Broadcast

Users broadcast Dilithium3-signed transactions across the peer-to-peer network.

SahyadriX Mining

Miners collect transactions and perform memory-hard Proof-of-Work using current DAG tips.

Parallel Block Creation

Multiple blocks reference multiple parent blocks simultaneously — no orphaned blocks.

SahyadriDAG Ordering

The network calculates deterministic ordering based on cumulative work and parent relationships.

1-Second Finality

Transactions achieve BFT-equivalent deterministic finality within approximately 1 second.

Block Structure

struct SahyadriBlock {
    hash: [u8; 32],
    parents: Vec<[u8; 32]>,
    timestamp: u64,
    difficulty: u64,
    pow_nonce: u64,
    merkle_root: [u8; 32],
    transactions: Vec<Transaction>
}

Security Properties

Property	Description
Permissionless	Anyone with CPU or GPU can become a miner.
Sybil Resistant	Security derives from memory-hard computational work.
Fork Resistant	Deterministic ordering follows cumulative PoW across SahyadriDAG.
Double-Spend Protection	Four-layer defense: mempool lock, balance re-check, nonce sequence, DAG finality.
Post-Quantum Secure	CRYSTALS-Dilithium3 signatures protect against quantum attacks.
Decentralized	No validators, staking pools, or governance committees.

Why Sahyadri Consensus is Different

Feature	Traditional PoW	Sahyadri Consensus
Block Structure	Single linear chain	Parallel DAG
Orphan Blocks	Common (wasted work)	Zero (all contribute)
Finality	Probabilistic (minutes)	Deterministic (1 second)
Throughput	Limited	10,000 TPS
Mining Algorithm	ASIC-dominated	SahyadriX (ASIC-resistant)
Signatures	ECDSA (quantum vulnerable)	Dilithium3 (post-quantum)

Summary

Sahyadri Consensus combines the strongest characteristics of Proof-of-Work with modern DAG research to create a decentralized consensus mechanism that delivers 1-second deterministic finality, 10,000 TPS throughput, and post-quantum security — all without sacrificing permissionless participation or decentralization.