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News:

Latest Stable Nxt Client: Nxt 1.12.1 Upgrade before block 2870000 is mandatory!

Pages: [1] 2 3 ... 10
 1 
 on: Today at 08:16:01 am 
Started by Jelurida - Last post by Jose
Nice features added! Thanks!

I find this one specially interesting:
Quote
Asset Dividends payment by asset or currency, allowing paying asset dividends not only in NXT, but also in any asset or monetary system currency.

 2 
 on: February 27, 2020, 12:32:58 pm 
Started by Jelurida - Last post by Jelurida
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Release 1.12.1

https://www.jelurida.com/nxt/downloads

sha256 checksums:

d5d48729a1f32b8c11066bcdb203dd7760a582896afe8d2506feb93cf833f606  nxt-client-1.12.1.zip

e674acd327f09af56c8dc4bad8aee56b1c67301a97015ccc589ef516ee0b7248  nxt-client-1.12.1.sh

The exe and dmg packages must have a digital signature by "Jelurida Swiss SA".


Change log:

This stable release is a mandatory upgrade for all mainnet Nxt nodes.

A hardfork to activate several new features that have already been enabled on
testnet in 1.12.0e has been scheduled for block 2870000, expected around April
15, 2020. The following new features will be activated on mainnet:

    Asset Dividends payment by asset or currency, allowing paying asset
    dividends not only in NXT, but also in any asset or monetary system
    currency.

    Asset Properties, setting arbitrary name/value metadata on assets.

    Asset Increase transaction, allowing asset issuers to increase the total
    number of asset shares available.

More details about the above features were published in the previous 1.12.0e
changelog.

Optimize checkpoint calculation by using hash of checkpoint block bytes
instead of hashing all intermediate transactions.

Simplified setting up https on a public node without the need for a reverse
proxy. The new pem.to.pkcs12.keystore.certbot.hook.sh script can be used to
convert an SSL certificate issued by Let's Encrypt to a keystore file that
the Nxt node can use. The run.sh script now supports authbind, if started with
the --authbind modified, to allow the Nxt software to listen on port 443
without having to run it as root.

A new managePeersNetworking API has been added, to allow disabling or
enabling the node peer networking at runtime. It takes a single "operation"
parameter, with possible values: "enable", "disable", and "query", and
requires the adminPassword when run on a public node.

Added a new GetEpochTime API, to return the blockchain epoch time given a unix
timestamp.

Added a new property nxt.stopDownloadHeight to allow forcing the blockchain
download to stop once a certain height is reached.

The compact.sh script has been improved to better reduce the database size.
A new property has been added, nxt.disableCompactOnShutdown=false to allow
disabling database compact on shutdown, for faster restarts during development.

A new property has been added, nxt.deleteProcessedVotes=true, to optionally
disable the deletion of votes records when trimming the votes table. Note
that even if votes are not deleted, re-calculation of poll results may require
data that are no longer available (such as account or asset balances at the
time of poll finish), unless a blockchain rescan is done, this is why the
default is still to delete old votes records.

Various UI fixes and improvements.

Updated Jetty to version 9.3.28, H2 to 1.4.200. If using a custom nxt.dbParams
or nxt.dbUrl properties, remove any MVCC settings from them, MVCC is now the
default and not configurable.


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 3 
 on: February 27, 2020, 08:18:08 am 
Started by Jose - Last post by Jose
Nxt technical documentation updated and reorganized
https://twitter.com/NxtCommunity/status/1232632047123955712
Website: https://nxtdocs.jelurida.com

 4 
 on: February 26, 2020, 04:34:25 am 
Started by Jose - Last post by Right.Here
Proof-of-Stake Isn’t Broken. Why Are So Many People Trying to Fix It?
Full article - https://cryptodaily.co.uk/2020/02/proof-stake-broken-fix-it


Q: Why Are So Many People Trying to Fix It?
A: because the "more you have more you get" rule is an adoption killer... is the economic model what is broken... not codes or a tech thing...

my amateur in action solution published here work and make the forging very democratic (there is more java files to modify for implementing this solution but the idea is here...)
https://nxtforum.org/nrs-releases/nrs-v1-12-0e/msg244385/#msg244385

Quote
PoS Attacks – Theoretical, But Not Practical ...
with my modest solution PoS Attacks have 0 chance because even if you have 51% of the stack... your forging power (effective balance) is less than a guy or lady forging with 700 tokens!... and is more hard to predict the next forgers...

the RobinHood forging kung-fu ;D ;D ;D

 5 
 on: February 24, 2020, 09:10:00 am 
Started by Jose - Last post by Jose
Weekly Wins - 24th of February, 2020
https://twitter.com/Jelurida/status/1231845001094713344
Detailed info: https://www.jelurida.com/news/weekly-update-2020-02-24

 6 
 on: February 23, 2020, 04:58:12 pm 
Started by Birdlance.com - Last post by Birdlance.com
Our blockchain API capabilities have been extended with a reverse image search developers API.

Calculate Image Hash
Calculate a perceptual hash of an image by using an URL to the image.

Request:
requestType is calculateImageHash
url is the URL to the image

Response:
hash (S) is the perceptual hash of the image located on the URL
requestProcessingTime (N) is the API request processing time (in millisec)

Example:

Request:
http://18.197.116.35:9085/nxt?requestType=calculateImageHash&url=http://ogsteviestrow.com/wp-content/uploads/2017/09/Patreon-320-320-300x159.png

Response:
{
"imageHash":"f01b07f82fe6f8073a116aac87cb877bfdf86c9a783707e487cc7031044b8c0f","requestProcessingTime":993
}
Perform Image Search

Perform a search by using an image’s perceptual hash or URL.

Request:
requestType is performImageSearch
hash is the perceptual hash of the image; or
secretPhrase is the secret phrase of the funding account
5 BLNC is needed for this request, 4 BLNC gets send to forger of the last block.

Response:
imageSearch (B) is true if the operation completed successfully
requestProcessingTime (N) is the API request processing time (in millisec)

Example:

Request:
http://18.197.116.35:9085/nxt?requestType=performImageSearch&hash=f01b07f82fe6f8073a116aac87cb877bfdf86c9a783707e487cc7031044b8c0f&secretPhrase=IWontTellYou
or
http://18.197.116.35:9085/nxt?requestType=performImageSearch&url=http://www.domain.com/path_to_image.jpg&secretPhrase=IWontTellYou

Response:
{
  "requestProcessingTime": 6396,
  "imageSearch": [
    {
      "image_uri": "http:\/\/ogsteviestrow.com\/wp-content\/uploads\/2017\/09\/Patreon-320-320-300x159.png",
      "phash": "f01b07f82fe6f8073a116aac87cb877bfdf86c9a783707e487cc7031044b8c0f",
      "base_uri": "http:\/\/ogsteviestrow.com"
    }
  ]
}

Whats next?
  • Integrate our reverse image search with each node. Each node will crawl the web to improve our reversed image search. This means that the more nodes the birdlance blockchain network has, the more powerful our reverse image search will become. We will contineously work on improvements to the blockchain to make our reversed image search smarter and self-sustainable.
  • Our indexed data (hash and image url) is too big to store on chain. To be truely succesful we need around 40 billion of crawled image data. Right now this data is centralized. We are working on an OrbitDB(P2P database) to make this decentralized.
  • Integrate our reversed image search APIs in the next node update. Everyone will then be able to use his/her own node for our reversed image search APIs by simply enabling the API functionalities of their node (setting in the properties file).

Read full here:https://medium.com/birdlance/decentralized-reverse-image-search-blockchain-api-8b5f261f0fbf


 7 
 on: February 21, 2020, 03:33:44 pm 
Started by Jose - Last post by Jose
The Future of Crypto: The Latest Cryptography Advances Set to Change Blockchain
https://cointelegraph.com/news/the-future-of-crypto-the-latest-cryptography-advances-set-to-change-blockchain
Quote
Lior Yaffe the co-founder and managing director at Jelurida — the firm behind blockchains NXT, Ardor and Ignis — also said that ZK-Proofs can have a very positive influence on scalability. He explained:

    “Instead of generating large blocks of transactions and propagating them through the network miners can use ZKP to generate small data sets only showing the account balance changes plus a cryptographic proof that no double spend occurred.”
Full article: https://cointelegraph.com/news/the-future-of-crypto-the-latest-cryptography-advances-set-to-change-blockchain

 8 
 on: February 20, 2020, 03:07:08 pm 
Started by Jose - Last post by Jose
New Nxt Peer Explorer
https://twitter.com/NxtCommunity/status/1230434304011968512
Website: https://explorer.jelurida.com/nxt

 9 
 on: February 18, 2020, 03:31:22 pm 
Started by Jose - Last post by Jose
Proof-of-Stake Isn’t Broken. Why Are So Many People Trying to Fix It?
Full article - https://cryptodaily.co.uk/2020/02/proof-stake-broken-fix-it

 10 
 on: February 17, 2020, 08:56:59 am 
Started by Jose - Last post by Jose
Weekly Wins - 17th of February, 2020
https://twitter.com/Jelurida/status/1229323943229689857
More details here https://www.jelurida.com/news/weekly-update-2020-02-17

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