I am a software developer based in Cambridge, UK. I develop several tools that help enhance the steem community especially the CN. I maintain a Steem Witness Node that supports the growth of the steem blockchain.

I am a Utopian Moderator. I review submissions in the development category.

I am currently the 7-th most delegated account - currently 329 delegators! on the STEEM Blockchain.

https://steemyy.com

Weekly Witness Update

As a witness, I feel it is useful to have a weekly report, which will be produced every weekend at the hashtag #witness-report

Last Report

@justyy's Weekly Witness Report - 28/July/2019

Witness Status

My Witness Page

Witness Server

• Running 21.0 now (Docker)
• Location: Germany
• 10 cores of Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz
• 60 GB RAM
• 1600 GB SSD
• 1300 Mbit/s port, Upstream 130 Gbits
• Ubuntu 18.04 bionic

Backup Server

• Running 21.0 now (Docker)
• Location: Germany
• 10 cores of Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz
• 60 GB RAM
• 1600 GB SSD
• 1300 Mbit/s port, Upstream 130 Gbits
• Ubuntu 18.04 bionic

Block produced in last 7 days

70 blocks produced in last 7 days and rewarded 165668 VESTS in total (approximately 82.0955 Steem Power).

Witness Summary

Rank 68 - Total Votes: 13831 MVs and 840 Voters (+2) . Total: Missed 37 Blocks. (1 - Miss since last update). Feed published every 2 hours smoothly.

Witness Updates (Steem Posts)

1. Both Main and Backup Witness Node Running on 21.0 !
2. Witness Update: Two Nodes are Currently Replaying
3. Witness Update: Node updated to 21.0 - prepare for HF21!
4. Online Hash Calculator for Strings using Different Algorithms

Delegation

@justyy is the 7-th most delegated (329 Delegators) project on steem blockchain (See below).

Delegation Rewards

In last 7 days, 113.8420 SP were given out to the 329 delegators. Thank you!

The steem price is low and hence more delegations to @justyy as his delegation return APR% still stays the same.

Revenue and Expenses

1. Monthly SteemSQL cost: 20 SBD roughly 90.865 STEEM at current price.
2. Monthly Costs for The Witness Nodes: around 100 USD
3. Monthly API server costs: around 150 USD
4. Monthly Domain Costs: 12 USD
   And not to mention time and efforts spent on: developing new tools, monitoring and upgrading the witness servers. It is profitable only (especially under such low STEEM price) if you are at Top 50, so please do support me by voting me as a witness or set as a witness proxy. Thanks.

I like STEEM and I do believe the STEEM - that is why I have been spending money and efforts on being a witness and promoting STEEM community via developing tools/applications, providing APIs, helping Utopian moderating work etc.

I am not giving up .. YET, and I will keep working hard to bring something unique to the community.

Utopian Moderations

NA - Utopian is currently offline

Blog posts

1. 4Sum – Find Unique Quadruplets that Sum to Target using O(N^3) Four Pointers Algorithm
2. The Subsequence Algorithm for Two Strings – How to Check if a String is Subsequence of Another?
3. Using Greedy Algorithm to Fix the Broken Calculator
4. Beginner’s Guide to the zip() function in Python3
5. Passengers Pick-up and Drop-off Algorithms (Car Pooling) via Greedy Algorithm
6. Maximize Sum Of Array After K Negations using Greedy Algorithm via Priority Queue/Min Element
7. The Variable Expansion Algorithm Using Regular Expression in Javascript
8. How to Compute the Number of Days in a Month?
9. How to Determine the Leap Year?
10. How to Determine the Armstrong Number?
11. How to Compute the Intersection of Two Arrays using Sorting + Two Pointer Algorithm?
12. How to Compute the N-th Tribonacci Number using Iterative Dynamic Programming Algorithm?
13. How to Find the Largest Unique Number in Array?
14. How to Find the K-diff Pairs in an Array with Two Pointer or Hash Map?
15. String Algorithm: Reverse the first k characters for every 2k characters
16. 离伦敦FACEBOOK最近的一次 – 记FACEBOOK伦敦终面经历
17. 英国HSBC汇丰银行因为房子钢筋结构不肯放贷
18. 不要生闷气
19. 面试后你不应该做的五件事
20. 北爱尔兰Northern Ireland贝尔法斯特Belfast卡里克索桥(Carrick-A-Rede Rope Bridge)
21. 拒了甲骨文(Oracle)的 Offer
22. 谷哥 Adsense 广告需要在域名根目录下配置 ads.txt 文件

XXX----------------

Enjoy and Steem On!

Delegate to @justyy

@justyy runs a automatic delegation service for a long time. Delegate to @justyy for at least 5 SP and start receiving daily payout as interests (from 8% to 10% APR). Also, as a supporter, the delegators will start to receive complimentary/curation upvotes (as a thank you) per day from e.g @justyy and a few other curation trails. For more information, read this. The voting weight algorithm is open source.

• Delegate to @justyy - at least 5 SP to join (automatically)
• Undelegate to @justyy (Quit) - SP returned by steem blockchain in 5 days
• View Current Delegators/Supporters

325 Delegators! Thank you!

@justyy is the 7-th delegated project on steem blockchain

Please note that the SP you enter is the final amount to delegate. For example, if you already delegate 10 SP and you want to delegate another 5 SP, you will need to enter 15 SP (instead of 5 SP) in the delegation form.

Vote for me or Set me as a witness Proxy - Every vote counts! - Thank you!

Your Vote is much appreciated, and every vote counts.

Check out My Witness Page

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My Witness Campagin

Support me and my work: my witness campagin:

1. One Year Witnessversary - A Great Start!
2. voting me here, or
3. voting me as a proxy

Some of my contributions:

1. SteemIt Tools, Bots, APIs and Tutorial
2. VPS Database
3. Video Downloader
4. Cryptocurrency Discord Bot
5. SteemIt Discord Bot

Join cnsteem Discord channel: https://discord.gg/SnNaaYS