Proof of Proof Graphic

Proof of Proof

PoP mining enables blockchains to inherit and leverage the Proof of Work from a superior blockchain such as Bitcoin. As a result, the reinforced security provided by PoP will encourage further adoption of these alternative blockchains.

The transition of transactions from Bitcoin to alternative blockchains will also facilitate Bitcoin scaling, while continuing to drive value back to Bitcoin miners.

Veriblock™ Blockchain

The VeriBlock™ blockchain enables rapid, widespread, and secure adoption of PoP security for other blockchains.

Progress 70%

VeriBlock™ blockchain is in private testnet: collaborating with high-market-cap blockchains to roll out VeriBlock™ and VeriBlock™-secured blockchains.

Blockchain of Custody™

Blockchain of Custody™ provides high-volume data integrity services for law enforcement, healthcare, and beyond.

Progress 60%

Blockchain of Custody™ has evolved from a Bitcoin-based API to an in-early-development blockchain to facilitate high-volume data integrity services.

Grand Central

A mini-blockchain designed for cross-chain payment channels, atomic transactions & post-quantum signatures.

Progress 15%

The Grand Central whitepaper is currently being written as we develop limited-functionality smart contracts on a mini-blockchain.

Our Team

Maxwell Sanchez


Justin Fisher


Flip Filipowski


Jeff Roschman


Tim Stall


Jeff Garzik

Tech Expert

Matthew Roszak


Our Advisors

Bill Shihara


Anthony Di Iorio

Ethereum, Jaxx

Bo Shen

Fenbushi, Blockasset

Dev Team

Josh Rack
Josh Schlesinger
Casey Kettler
Carlo Vicari
Ayrton Travina
To contact the VeriBlock team, please email us at