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Description
Emercoin began as a hybrid of NameCoin and PPCoin. The software was released on December 11, 2013 without any premine.
Emercoin is more focused on the production of coins by PoS than PoW. The mining has a bonus on the interval 1-512 difficulty for high initial issue of coins.
Further difficulty will gradually increase, increasing the focus on PoS mining.

The Emercoin Name-Value Storage (NVS) feature for storing name->value pairs in the blockchain, is a key component in many of the Emercoin services.
 
Quick Facts
PoW Algorithm: SHA-256.
PoS reward: approx. 6% pa
PoS coin maturity: 30 days
PoS max stake-weight: 90 days.
Total Supply: Algorithmically increasing at approx. 6% per year.
Block speed: 10 minute average.
Initial PoW block reward: 5020 EMC, decreasing depending on difficulty.
PoW difficulty is recalculated each block.
Confirmations for new block: 32

Emercoin Blockchain Engine on the Microsoft Azure Platform
Emercoin's Blockchain Engine is offered within the Microsoft Azure platform where it can be deployed using CentOS or Ubuntu in the cloud.
It can be managed with the easy to use JSON-RPC as well as a web interface.
Blockchain Engine is a functional and robust, yet simple to use system for designing applications and services based around the Emercoin blockchain.
It contains an expansive suite of tools that can be used to create an entirely new project, or to improve upon an existing application already in operation.
More Information on Microsoft Azure Website

Release History

v 0.7.10
1) Added PoS spam protection to the testnet.
2) Sped up blockchain loading by optimizing the NVS database.
3) Fixed an API bug for the name_scan_address method.
4) Added more STUN servers, to a total of 701, allowing clients to anonymously find out their external IP addresses.
5) Removed PoW miner code, which some antivirus programs identified as malicious software. You can turn on the miner in the debug mode.
6) Brought back the safe mode, which can be activated by a special developer message. You can turn off this option by adding “disablesafemode=1” to emercoin.conf, but we do not recommend doing this.
7) Fixed a formatting bug for the TXT field in EmerDNS.
Removed the custom “EMCSSL” root certificate from the *.p12 installation package.
9) Disabled the broadcasting of banned peers by the wallet.
10) Completely rebuilt PoS spam protection, making it more reliable and accurate than ever


v 0.7.9
1) Fxed another bug in PoS filter. Upgrade required!

v 0.7.8
1) Security: Improved PoS spam filter and checkpoint sync function.

v 0.7.7
1) Fixes PoS spam vulnerability. Upgrade is mandatory.
2) Fix wallet locking.
3) qt: updated EasyRabbit exchange interface.

v 0.7.6
Minor release. Upgrade is optional.
1) emercoin-qt: some fixes to minting table, so that it updates when receiving new transactions.
2) emercoin-qt: added CoinSwitch and EasyRabbit exchanges.
3) rpc: names can be signed with signrawtransaction.
4) rpc: walletpassphrase can now have unlimited timer by setting timeout to 0.

v 0.7.5
A minor release (upgrade not needed).
1. emercoin-qt: can now execute with s-bit (SUID) in linux systems.
2. emercoin-qt: misc gui fixes.
3. rpc: enabled randpay commands.
4. emerDNS: added IPv6 support.


v 0.7.4
1. Added switch RPC server on/off.
2. Added gui for minting propabilities.
3. Added support RFC6891 EDNS0 in built-in DNS server.
4. rpc: Fix createrawtransaction when using data field.
5. Added interface to coinswitch.co for "Pay in another crypto".
6. Added Randpay engine.
7. Fixed bug with Randpay.

v 0.7.3
Security & GUI update release. It is recommended to upgrade if you constantly run your node on some server.
Client will reindex itself 1 time upon upgrading to this version.

1. Fixed potential proof of stake spam.
2. Increased -reindex speed significantly.
3. Added buttons for Trusted Diploma and Digital Proof of Ownership widgets in emercoin-qt.


v 0.7.2
1. Fix crash bug with duplicate inputs within a transaction (from btc 0.16.3).
2. BIP68 transactions (tx.nVersion=2) are created by default.
3. config: fixed -disablewallet option.
4. rpc & config: fix settxfee and other options where you can set fee.
5. rpc: replaced gettxlistfor with scantxoutset (from btc 0.17)
6. rpc: added name_indexinfo that prints checksums of nameindexes similarly to gettxoutsetinfo.

v 0.6.2
1) Added GUI for exchanges.
2) Added -alertpubkey and -checkpointpubkey config options.
3) Switched to QT 5.5.0.
4) Fixed 2 bugs when disconnecting blocks.

v 0.5.2
1) Merged with bitcoin 0.10.4. This allows to create transactions that cannot be spent until certain time/height.
2) QT and CLI now has unicode support by default (Univalue lib). This will display Unicode symbols in name value, but please note: do not use it for binary data.
3) RPC can also enable unicode, but you need to specify "-legacyrpc=0" in your emercoin.conf.
4) Name commands now have parameter for binary input/output as a hex or base64 encoded strings.
5) Some minor bugfixes (emercoin-cli could crash client during client startup).
6) More info about wallet lock state in getinfo ("encrypted": true, "mintonly": true)
7) Added ENUM support.

v 0.5.1
A new bitcoin 10.2 core

v 0.3.4
Added alternative seed search mechanism, based on emcDNS system. Improved PoS minting. Added and activated config option -walletnotify

v 0.3.3
Added improvements PoS - reduced load on the CPU

v 0.3.2
Added DNS NVS Subdomain control system, add new domain zones - * .lib, * .bazar

v 0.3.0
Lot of changes, read about - DO NOT POST SESC LINKS

v 0.2.4
add comand:
deletetransaction <Tx ID>
gettxlistfor <from block> <to block> <address> [type=0] [verbose=0]

v 0.2.3
Fixed a bug (stop downloading the chain) in a 32-bit version of Linux

v 0.2.2
Advanced dynamic IP protocol STUN added

v 0.2.1
Fixed SSL vulnerability (Heartbleed)

v 0.2.0
If you have any problems with synchronization on 19080 block - download and install version 0.2.0 - http://emercoin.com/downloads/
All data will be saved, none of the coins will not be a loss.

v 0.1.5
Add QT Debug window

v 0.1.2-0.1.4
Now payment links open correctly as in qt-Bitcoin client.
You can integrate EMC reception on their sites using the links format emercoin:EMCAdress?Amount=x (where x - number of coins).
Also available in the source code of the payment gateway - https://github.com/A...mercoin_payment
Test Gateway - http://192.241.241.153/emercoin

v 0.1.1
add comand:
+    { "getrawtransaction",      &getrawtransaction,      false},
+    { "listunspent",            &listunspent,            false},
+    { "createrawtransaction",   &createrawtransaction,   false},
+    { "signrawtransaction",     &signrawtransaction,     false},
+    { "sendrawtransaction",     &sendrawtransaction,     false},
+    { "decoderawtransaction",   &decoderawtransaction,   false},