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After nearly three years of development, we are excited to announce the launch of the VeriBlock blockchain testnet using Bitcoin to protect the world’s blockchain !

The VeriBlock blockchain extends Bitcoin’s full Proof of Work security to every blockchain in the world in the most cost-effective, secure, and easy-to-use manner using our new Proof of Forgery (PoP) consensus protocol

NOTE: The software available for download below is for the VeriBlock testnet blockchain.

The network (and all address balances) will be reset prior to the official mainnet launch.

Wallet download: https://github.com/VeriBlock/nodecore-releases/releases

Miner: https://github.com/VeriBlock/nodecore-releases/releases

Technical specifications
Name: VeriBlock
Symbol: VBK
Secure Inheritance Protocol: Proof-of-Proof (PoP) Mining
Block Generation Protocol: Proof-of-Work (PoW) Mining w/ vBlake
Signature algorithm: ECDSA (secp256k1 curve)
Block time: 2 minutes
P2P Port: 6500
RPC Port: 10500

Browser: https://testnet.explore.veriblock.org/network-stats

Official website: https://www.veriblock.org/

About VeriBlock
VeriBlock is the world's first blockchain that allows every blockchain in the world to inherit the full Proof-of-Work security of Bitcoin in a fully decentralized, trustless, transparent, and permissionless (or "DTTP") manner. The VeriBlock blockchain is built 100% from scratch and designed from the ground up to provide the most cost-effective, secure, and easy-to-use way for the world's blockchains to enjoy the unparalleled immutability of Bitcoin itself.

About Proof-of-Proof (PoP)
Proof-of-Proof is a novel consensus protocol invented by VeriBlock, Inc. that allows any blockchain (including sidechains and permissioned ledgers) to inherit the full security of Bitcoin in a truly decentralized, trustless manner.

It does this by publishing data representing the current state of the blockchain to Bitcoin (directly or indirectly), so that any user can participate and be compensated for making the blockchain inherit Bitcoin's security. If you want to dive into the technical details, check out our whitepaper.

DTTP
DTTP stands for Decentralized, Trustless, Transparent, and Permissionless; the core properties that allow Bitcoin to achieve true security. We designed the VeriBlock blockchain and Proof-of-Proof protocol with strict adherence to the properties that made Bitcoin what it is today, and believe that for any blockchain to truly inherit the security of Bitcoin, it must be implemented in the same way.

How is VeriBlock mined?
The VeriBlock blockchain is mined in two different ways: PoW and PoP mining. PoW miners are responsible for creating blocks, providing intermediate consensus for the blockchain, and providing the VeriBlock blockchain with inherited security through a PoW-driven first line of defense.

PoP miners are responsible for publishing the current state of the VeriBlock blockchain (and by proxy, all blockchains secured by VeriBlock) to Bitcoin in a fully DTTP manner.

How does VeriBlock help blockchain?
Using Proof-of-Proof through the VeriBlock ecosystem, any blockchain can inherit the consensus security of Bitcoin, making consensus attacks (rewriting history to perform double-stake attacks, etc.) much more difficult to execute. This additional security significantly improves trust, allowing blockchain tokens to be listed on more exchanges, reduce confirmation wait times on existing exchanges, and participate in the fiat market because the risk of consensus-related token theft is drastically reduced. Consumers now have more confidence in the blockchain, and the project's developers can focus on creating a rich feature profile rather than inventing and implementing exotic and untested security mechanisms.

How does VeriBlock help exchanges and merchants?
Thanks to the proliferation of secure blockchains, exchanges and merchants can list coins from more blockchains while generally requiring fewer confirmations because they greatly reduce the risk of double spending.

How Does VeriBlock Help Bitcoin?
PoP miners protecting the VeriBlock blockchain spend Bitcoin to publish information about the current state of VeriBlock, thereby increasing the buying pressure on Bitcoin coins while paying Bitcoin miners higher fees. VeriBlock also provides an environmental image for Bitcoin's PoW, as it can reuse PoW to protect an unlimited number of blockchains.

How difficult is it to attack a blockchain secured by VeriBlock?
Once a given block on the VeriBlock Secure blockchain reaches full security (after a period of time that depends on the aggressiveness of the weighting algorithm used by the blockchain and the absence of conflicting data, which is seen in real time), reversing consensus on that block requires forking the Bitcoin, VeriBlock, and VeriBlock Secure blockchains simultaneously.

How is VeriBlock different from Sidechains/Drivechain?
VeriBlock Proof-of-Proof is a complementary technology to sidechains/drivechains. Given a sufficient security budget, sidechains can employ VeriBlock consensus technology like any other public blockchain.

Why does VeriBlock need coins?
The VeriBlock blockchain provides a proof-of-stake aggregation layer, and its coins provide a way to pay decentralized VeriBlock PoW and PoP miners in a manner fully controlled by the VeriBlock blockchain protocol. Thus, the VeriBlock coin acts as a price discovery mechanism, allowing for efficient distribution of proof-of-stake resources, allowing all blockchains to inherit Bitcoin's PoW security.

What is required for Proof of Stake mining?
In order to obtain VeriBlock testnet coins for PoP mining, you will need a running instance of the Bitcoin testnet (Mainnet VeriBlock will require Mainnet Bitcoins) with an address containing a positive Bitcoin balance. In addition, you will also need the free VeriBlock core software (NodeCore, CLI, and PoP Miner).

What does Proof of Work Mining require?
In order to obtain VeriBlock testnet coins for PoW mining, you will need a computer that is not using CPU (or later, GPU) power. In addition, you will also need the free VeriBlock core software (NodeCore, CLI and PoW Miner).

What is vBlake?
vBlake is the Proof-of-Work hashing algorithm used by the VeriBlock blockchain. It is a tweaked version of BLAKE2b that has been optimized to be used as a PoW algorithm.

NOTE: This project is not affiliated with VeriCoin/Verium.