YACoin Resurrection – Heliopolis

YACoin is moving up! It now has NFTs!

https://ipfs.io/ipfs/QmTng9sJqspRNoG5hVyd9RhKvsAsNf8scopK1CGpA2eAqh

The first 10 people to reply or PM me will get 21 of the genesis YACoin NFT. Only 2100 exist, and they are NOT reissuable. These are main assets or newly dubbed 'YA-tokens'



You can view the details in the yacoind terminal:
./yacoind listtokens "*" true
        "BRINGBACKTHEYAK" : {
        "name" : "BRINGBACKTHEYAK",
        "token_type" : "YA-token",
        "amount" : "2100.00",
        "units" : 2,
        "reissuable" : 0,
        "has_ipfs" : 1,
        "block_height" : 1911481,
        "blockhash" : "00000bfd8796fd3cfbdd19bd5901ebeb0666548c95e70d180ac69e1b78af3e82",
        "ipfs_hash" : "QmTng9sJqspRNoG5hVyd9RhKvsAsNf8scopK1CGpA2eAqh"

You can also view the timelocked coins required to create the token: http://explore.yacoin.org/timelock

YACoin is/will come back!

It appears there was a new wallet (v1.1) released today.

https://github.com/yacoin/yacoin/releases/tag/v1.1.0

Just a quick update, and a clarification.

First, to clarify as it seems there was a lot of confusion by the Yacoin team and perhaps some others, and assumptions here and there seem to overtake the simple act of asking a question    I AM NOT WORKING ON A REPLACEMENT FOR YACOIN I am working on a fork of the original Yacoin protocol, similar to Bitcoin Cash or SPV.

Your Yacoin wallet and coins will be valid until the fork on this chain, and then it will become it's own thing. I encourage anyone that was looking forward to Heliopolis to continue to look forward to it, download, install, what have you. I have changed the network port on the coin I'm working on, so you'll be able to run both on the same machine if you wish.

As far as the update goes, I am likely NOT going to be finished before the Yacoin fork at 1900000. In fact, I may never release it unless I can fix the terrible design flaw that has plagued Yacoin since day one. That is, using the PoW hash for EVERYTHING. This, as you know makes the client use more and more resources to run and gets worse for every Nf change. It shouldn't take a coin 15 days to sync and a  non mining client shouldn't run at a high CPU and Memory rate. That's the main reason Yacoin is not on any exchanges.

There are 2 options I see to fix this.

1) My solution, which I'm not entirely sure is even feasible is to REHASH the Yacoin blockchain. In theory I believe it will work as the underlying data is not changing, just switching the hash field in LevelDB from the ever increasing (in resources) Nf hash with the normal 256 hash. The proof of work will still work, just the hash will be sha256. The client will then be able to sync, from 0 in a few hours. It's interesting to me that Pakapaka used the correct hashing for testnet... if only they would have switched that around!

2) Figure out the best way to transfer all coins to a new block-chain that starts out using the correct 256(256,block) hashing for all but PoW which would still of course use Nfactor.  

This, in my opinion, is the ONLY thing the Yacoin team should be working on. There is one of me and many of you, I'm sure you could devise a solution quicker than I can, but either way (in my opinion) it needs to be done.

I am also happy to have any help from programmers that are extremely familiar with databases, especially LevelDB.

YACoin Resurrection Hard Fork – Heliopolis

YACoin is getting an upgrade (finally)! At block height 1,890,000, a hardfork will occur. Here is a list of main features of the upgraded chain:


-PoW ONLY – No more Proof of Stake. Proof of Work is the innovation of Bitcoin.

-2% annualized supply inflation max. Fees are destroyed, which can cause supply deflation with increased economic activity. The block reward is calculated off of the total money supply. First PoW coin to do so.

-Unique algorithm. Sticking to its roots, YAC will maintain the inventive scrypt-chacha (aka scrypt-jane). NFactor will be set at 21 to be ASIC resistance but also mineable for many CPUs and GPUs.

-Intelligent Block Size Increase. Block size will increase over time at no more than 2%--dependent on the total money supply.

 -Set epoch lengths. At 21,000 blocks for each epoch, the ‘compounding bad luck’ problem faced by the mining ecosystem is addressed. The system incentivizes more decentralization, smaller miners/pools.

-Timelock and atomic swap/loans capabilities.

Upgrade includes many bug fixes (incl. txid malleability bug, UTC timestamp bug) as well as other features and more to come. [/color]

Download/compile the latest YACoin 1.0.0 repo build at the public github repo: https://github.com/yacoin/yacoin/

I have two questions.
1 - Why someone with new v1.0 already on block 1917342 but all others nodes on old versions and block explorer http://explore.grokonet.com/ only on block 1888070.
2 - Why last hard checkpoint in new version still from 2014 year?

I was hoping to better understand this.

Currently (pre hard-fork) the N-factor was set to be increase on a fixed schedule.  After the hard-fork I believe it will be "set" to 21. 

What are the plans to increase the N-factor over time?  As technology improves so will the mining capabilities.  Litecoin for example - was "GPU proof" and shortly after home graphic cards became powerful enough to mine.  Following that the "scrypt" algorithm became ASIC territory.  I'm sure we don't want something similar to occur to YAC down the road.  And to increase the N-factor when 'ASICs seem to be getting close' seems arbitrary.

Is there something in the protocol to handle N-factor increases?  Or can it be included?

Now I have been changed to use wallet v1.0.0 already.
Another question , I'd like to ask you about my YAC at Yobit. At present time , I can't withdraw them from Yobit. ( due to the status of wallet is maintenance ).How to do about this matter?
I don't know that I have to withdraw them from Yobit to my desktop wallet or not.

I'm wondering how it was decided to convert YAC to POW only.  I don't recall seeing a discussion here, in GitHub, or miners voting with their hashrate.