Delayed Proof of Work

Komodo’s delayed Proof of Work (dPoW) security is a secondary consensus mechanism that recycles the giant hash rate of the Bitcoin network through a series of cross-chain notarizations.

A Second-Layer Consensus Mechanism

Delayed Proof of Work (dPoW) does not act as a blockchain’s primary consensus mechanism. Every dPoW-protected blockchain’s decentralized network still validates each transaction. 

dPoW is a second-layer mechanism that provides an extremely high level of security in addition to a blockchain’s normal consensus rules. It is available to both PoW and PoS blockchains.

Cross-Chain Notarizations

dPoW security protects every integrated blockchain with the power of the Bitcoin network. A series of cross-chain notarizations make leveraging Bitcoin’s hash rate possible.

These cross-chain notarizations are carried out by Komodo’s Notary Node network. Notary Nodes are dedicated servers that perform notarization transactions for the Komodo ecosystem.

dPoW Security in 7 Steps

The dPoW process is rather straightforward. While it provides an incredibly high level of security, dPoW is an elegant and simple security solution that can be explained in 7 steps.

An Industry-Wide Security Solution


Komodo’s globally-distributed network of 64 community-elected Notary Nodes perform the technical work required for dPoW to function. Each dPoW-protected chain's network approves notarizations.


dPoW is currently securing over 30 production blockchains, protecting several hundred million dollars in value. dPoW has successfully defended against real 51% attack attempts.


dPoW security is available for all UTXO-based blockchains, whether or not they were created with Komodo’s technology. Annual fees are marginal compared to the level of security provided.