The rise of distributed storage track, inventory of popular POC hard disk mining projects

The popularity of Chia has once again brought POC hard disk mining to the stage. PoC (Proof of Capacity) is a consensus mechanism that allows mining equipment to use idle hard disk space to participate in mining. Compared with PoW's computing power mining and PoS's pledged token mining, PoC mining has the advantages of low threshold and low energy consumption.

Today we will talk about the representative projects in the current POC hard drive mining ecosystem.

Burst is a pioneer in the PoC field.

The mainnet was launched on August 11, 2014.

In August 2015, the anonymous founding team disappeared, and the community took over afterwards, with no substantial progress.

In August 2017, the takeover of the POCC (PoC Consortium) alliance injected vitality into Burst. After more than two years of mainnet testing and code optimization, the PoCC team upgraded the zero test coverage of the original version code to full coverage of the underlying code. This part of the core code is very mature. Almost all subsequent PoC currencies such as BHD, BooM, LHD, etc. are developed based on this consensus specification.

In January 2019, the PoCC team withdrew from the community due to a scandal, and the Burst App Team (BAT) took over, and development entered a slow pace.

Today, Burst's total network computing power has dropped back to 200P (the average total network computing power in the past 30 days), which is significantly behind similar PoC tokens such as BHD.

In terms of technology, Burst pioneered the PoC field and laid a solid foundation for the accumulation of technology in the PoC field. It can be said that the latecomer BHD has benefited from Burst's exploration results.

The current price is 0.012 USD, and the circulating market value is about 24.4 million USD.

BHD is a new cryptocurrency based on Conditioned Proof Of Capacity. Its main innovation is the adoption of a new conditional capacity proof consensus mechanism, using hard disks as consensus participants, so that everyone can mine cryptocurrency. Hard disk mining makes BHD more decentralized, and credit and value are generated through mathematical algorithms and distributed mining. BHD will be committed to building a valuable financial system that changes the way cryptocurrency is produced.

BHD started in August 2018. Its technical architecture has been upgraded on top of Burst and BTC. BHD is a project that truly brings POC capacity proof into the public eye. The conditional capacity proof mining adopted by BHD has subverted the original economic model of Brust. BHD's unique economic model ensures the self-circulation of BHD's internal ecology, making its internal ecological business closely linked.

The current computing power of the BHD network has exceeded 500PB and remains above 500PB. The total mining equipment in the network is estimated to exceed 300 million RMB. When BHD was launched on the exchange in 2018, the price was 1 US dollar, and the highest price exceeded 50 US dollars, an increase of more than 5000%!

The current price is around US$4.3, and the circulating market value is about US$40 million.

The MASS consensus engine is committed to becoming the infrastructure of the blockchain consensus layer. Based on the capacity proof consensus protocol, the MASS consensus engine builds a permissionless, fair, energy-saving, secure, and universal consensus layer to ensure the fundamental security of the public chain during operation.

The MASS consensus engine is universal and can provide consensus services for multiple public chains at the same time. Nodes participating in the maintenance of the consensus engine can run the MASS consensus protocol through storage space without permission. The operation process of the MASS consensus engine is green and fair - consuming only very little computing resources means that everyone can participate.

MASS Net is the first public chain to use the MASS consensus engine. It is the value store of the MASS consensus engine and will also become a value anchor within the MASS ecosystem.

The MASS community is a non-profit online community that was launched in 2017 with the mission of promoting the popularization of blockchain.

The current price of MASS is 1.2 USD, and the circulating market value is about 130 million USD.

Chia was founded by the founder of BitTorrent. It uses the Proof of Space and Time consensus algorithm, which combines the two consensus mechanisms of "Proof of Space" and "Proof of Time".

Chia has received $3 million in seed round financing from well-known venture capital firms such as A16Z. It plans to complete an IPO registered with the U.S. Securities and Exchange Commission (SEC) before the product is officially launched. Therefore, Chia's tokens will be divided into two parts, one part is similar to stocks that can receive dividends, and the other part is produced through mining. For the specific output model, please refer to: This article understands the Chia mining economic model.

Chia introduces a verifiable delay function (VDF) based on the traditional Proof Of Space. The calculation result of VDF must take a certain amount of time and can be quickly verified by anyone in the network. This result can increase the probability of PoS obtaining the right to produce blocks. Since the time parameter of VDF is linear, the optimal quality can be finalized first.

Chia's consensus process is divided into two steps. After the Proof of Space (PoS) phase, the three best proof results are propagated to the network, and the PoT nodes begin to process them. The blocks verified by PoT will be synchronized to the entire network. The better the quality of PoS, the faster the PoT process. The PoST proof algorithm can effectively avoid malicious attacks such as rewrite attacks, DDoS, and spam.

In addition to the innovations in the consensus layer, Chia also provides a programming language, Chialisp, that can better build smart contract transactions, supporting smart contract instances for atomic swaps, authorized payees, recoverable wallets, multi-signature wallets, and price-limit wallets.

It is not currently listed on the exchange and the price is unknown.

Spacemesh is a PoC blockchain that hopes to realize Satoshi Nakamoto's original intention in the Bitcoin white paper through hard disk mining - a truly decentralized peer-to-peer electronic cash network. According to official data: In a simulated real stress test, Spacemesh's TPS is 90 transactions per second.

The total number of Spacemesh cryptocurrencies is 7 million, with 1 million produced in the first year, and then decreasing by 100,000 per year until all are mined. Its economic model is similar to Zcash and Grin, with a high inflation rate in the early stage to prevent speculators from entering, hoping to control the growth rate of the coin price in this way and turn it into "BetterMoney".

In September 2018, Spacemesh completed a $15 million Series A financing round led by Polychain.

In terms of technological innovation, it uses the DAG topology to replace the chain structure, allowing the entire network to reach 400 blocks in 10 minutes.

Its consensus algorithm uses two sub-protocols, the "rabbit protocol" that uses Byzantine fault-tolerant consensus and the "tortoise protocol" that determines whether a block is valid, to determine the security of the ledger. The difficulty coefficient is adjusted through the POET node (the POET node is a software service that connects to each mining node, adjusts the difficulty coefficient, and distributes Standard rewards to prevent witch attacks), realizing the anti-ASIC mechanism of hard disk mining.

Not listed on the exchange, price unknown

POC hard disk mining is being accepted by the public because of its low threshold for participation, low energy consumption, green environmental protection, simplicity and convenience. Mainstream POW mining and DEFI mining have become independent games for big capitalists. Hard disk mining may be another market opportunity for small and medium-sized users!