Quote from: Protus on August 23, 2017, 06:28:37 PM

Creativechains new core is now ready for being updated to version 1.2.0.0

The main purpose of this update is to secure the network making it more efficient, achieve greater decentralization and protect it from the power of multiple mining pools and its asymmetric hashing power.

In order to achieve this, it has been added the new and advanced SHA-3 Keccak algorithm for the proof-of-work (POW) and DigiShield, whose technology has implemented a more dynamic retarget system to regulate the mining difficulty.

The fork, that will implement these updates, will be activated automatically in block number 46368 and, to do this process, users who have their CREA in the wallet simply need to update it as soon as possible.

UPDATE YOUR WALLETS NOW

So that your CREA can continue to operate correctly in this fork you will need to update all your wallets (Android, Linux, MacOS or Windows)

As simple as:

For Linux, MacOS, or Windows:

If you havent done it yet, it is recommended to always keep a copy of wallet.dat in a safe place. File / Save copy of the wallet.
Download the new QT wallet.
Install the wallet.
Wallet CREA Qt Linux 64
Wallet CREA Qt Win 32
Wallet CREA Qt Win 64
Wallet CREA Qt Mac OS
Wallet Lite CREA Android
BINARIES

Exchanges wallets.

All exchanges where CREA is available (Cryptopia, Coinexchange, Novaexchange and Bitgrail) have confirmed that they have updated their wallets to support the new update. In this case you dont need to do anything.

It is possible that the exchanges may leave the wallet in maintenance for some minutes.

Creativechain.org does not control the services offered by exchanges so we are not responsible for its management. If you prefer to update your wallet yourself we recommend downloading the new wallet and sending your coins there before the fork.

* We remind you that once the fork is made, it wont be possible to make transactions to the exchanges from wallets that are not updated. Then, we insist that the update should be done as soon as possible.

*If any user has pending CREA transactions, he must wait until they are completed before the Wallet upgrade.

TESTNET

We have also released a testnet version of the core that is ready for being used.

Add this node using the terminal: creativecoin-cli addnode 5.189.152.67 add

TESTNET POOL

Creativecoin [CREA] Testnet Pool

Test your mining equipment with the new SHA-3 Keccak algorithm and get ready to activate the update on the mainnet.

INNOVATIONS THAT WILL PROVIDE THIS UPDATE

DigiShield

It is a technology that implements a more dynamic recalculation of the mining difficulty.

Currently any cryptocurrency may have problems with large mining pools and high hashing power, once large pools increase the difficulty they automatically stop mining the coin, deposit the coins into the market, and they leave leaving the rest of the more dedicated miners with a very high difficulty and very few new coins to be mined. This situation discourages some miners as it would not be profitable to mine and eventually abandon mining. This scenario can lead to double-spending attempts or 51% attacks. At the same time it can slow down the blockchain until the next recalculation is reached.

DigiShield protects CREA against this threat and helps ensure greater confidence in any currency that implements it, allowing the difficulty to rise and fall almost perfectly synchronized with increases or decreases in the net hash of a currency.

DigiShield is an asymmetric approach to re-targeting difficulty. With DigiShield, it is possible to decrease the difficulty in movements larger than allowed to increase from block to block. This prevents a blockchain from being stuck, that is, it does not find the next block for several hours after a significant drop in the net currency hash. Its all about balance. It should allow the difficulty to increase enough between blocks to achieve a sudden increase in the net hash, but not enough to accidentally send the difficulty to very high levels. The same happens when the difficulty decreases. Since it takes much longer to find the next block, you need to allow it to drop faster than it increases.

Currently the difficulty is recalculated every 720 blocks; with this implementation the recalculation will happen to be made each block (120 seconds).

Some projects such as DigiByte, Dogecoin, Z-Cash have recently successfully implemented DigiShield, providing robustness and protection to their coins.

Without a doubt, it will be a system that will give greater security to the ecosystem of the network of Creativechain.

New SHA-3 KECCAK algorithm (POW)

The SHA-3 Keccak is an algorithm approved and certified by NIST (National Institute of Standards and Technology). They have literally called it a next-generation tool for securing the integrity of electronic information. The SHA-3 algorithm Keccak has been the winner of several cryptographic contests becoming one of the algorithms best appreciated by experts. It is the improved evolution of the SHA-2 algorithm and has been developed as a safe-conduct to anticipate a possible future weakness that might appear in the SHA-2 algorithm.

The reason for changing the current algorithm (Scrypt) to SHA-3 is not only to increase security and modernize CREA technology. The implementation of this algorithm also brings other qualities to the POW as the possibility of mining with CPU or GPU to the detriment of ASIC. The possibility of mining with GPU and CPU will increase the distribution of hashing power in more workers and it will reduce the energy expenditure to secure the network.

At the same time, the option of mining with CPU allows the coin to be mined from any computer, opening the possibility of integrating in the platform client a mining software so that users can participate in securing the network while they earn CREA.

Sha-3 Keccak in github

+INFO

niice! side note coinexchange love CREA volume has been getting bigger there every day