Tag: Leading

How do I find a hash with leading zeros?

I came across a similar question that was asked, but the answer did not seem quite complete. Coding is completely alien to me and I've spent some time trying unsuccessfully to solve it. I try to increase the difficulty by getting 8 leading zeros and the corresponding nonce for the initial hash (no previous blocks) in Python. Any direction here is appreciated

import hashlib

m = hashlib.sha256()
m.update(b'Your Name')
m.digest()
m.hexdigest()

'9cd26bee4d76694cb03cfee8c2355a83339157f2e9234fd1352c12597da72474'

google – Strange / http URL pattern leading to many 404s

I received very strange 404 values ​​from the Google Search Console. It shows me some kind of URL confusion and I can not pinpoint exactly where this pattern comes from. It's a WordPress installation.

https://example.com/blog/page/12/’https://go.example.com/20190620-Lyft-Livestream.html?ref=blog

https://example.com/blog/page/13/’https://go.example.com/Retail_Webinar_Registration.html?ref=blog

https://example.com/blog/page/14/’https://go.example.com/WBR190710AI_Registration.html?ref=blog

Do you know how these were produced?

Message Signature – How difficult is it to create an ECDSA (or Schnorr) signature with a certain number of leading zeros?

If both the public key and the private key are known anticipatory (public knowledge), and the goal is to select a message / nonce that generates a signature with, for example, a certain number of leading zeros, this is a computationally intensive task like the conventional "hard to find" but "relatively" easy to verify? "

Apparently, the answer should be "yes", because if the answer is "no" (I think?), This would mean that signatures for different messages are not pseudorandomly consistent.

Can a signature, perhaps more succinctly, also be used to provide specific proof of the work?

Finally, will you answer one of the above changes if the signature scheme used is Schnorr rather than ECSDA?

Analytical formula for leading eigenvector of $ uu ^ T + vv ^ T $?

To let $ u $ and $ v $ Be non-zero column vectors of size $ n $ and look at that $ n times n $ Positive Definitely matrix $ A: = uu ^ T + vv ^ T $, In this post https://math.stackexchange.com/a/112201/168758 are the eigenvalues ​​of $ A $ were calculated analytically.

question

I wonder if there is an analytic formula for the eigenvectors of $ A $,

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– Free Site Builder
– Free SEO Tools
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Yes that's right! Hostbazzar.com has now launched the leading free WordPress hosting service on the hosting market, which is completely free to all. The best part is that he is free for life. Currently we only offer this service for the first 1000 customers. However, increase the limit if customers are satisfied with the experience and want to share their experience in the form of a review after registering with our services.

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Features with free WordPress hosting:

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– cPanel as control panel
– One-click script installer
– E-mail accounts
– MySQL databases
– Subdomain and parked domain
– Auto SSL
– Free Site Builder
– Free SEO Tools
– Simple upgrades
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– Immediate Setup After verification
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Other shared / reseller hosting packages can also be ordered with a 40% recurring discount: Coupon Code: 40SRHOST

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Let's encrypt SSL certificate
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Unlimited monthly bandwidth
Unlimited domains are supported
Free Comodo SSL certificate
Unlimited MySQL / Mailboxes
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Unlimited monthly bandwidth
Unlimited domains are supported
Free Comodo SSL certificate
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Buy one of our offers on annual terms and get your domain registration / transfer for the first year for free!

Our webhosting guarantees:
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2] Safe, secure, trustworthy – Web hosting downtime can cause customers to lose confidence in your business and cost you money. Selecting a provider based on cost can be an absolute nightmare – data loss, site failures for days, and non-existent support. CanSpace has been recognized by Canada's largest companies as a provider of world-class, reliable web hosting for years.
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4] No overselling – Unlike our competitors, we do not offer unrealistic web hosting services with "unlimited storage and unlimited bandwidth for $ 1 a month" – resulting in slow loading and often inaccessible websites. You always get the level of webhosting service and reliability that CanSpace Canadians are used to.
5] We appreciate your business – We know that your website is the key to your business and we strive to make your website work smoothly, quickly and reliably. Our data centers are staffed 24 hours a day, and our support staff is available 24/7 to solve all your concerns and problems.
6] Daily backups – All webhosting accounts are backed up daily, so there is always a way to recover in an emergency. Unlike other vendors, we give our customers unrestricted access to their backups, so even in the case of a simple human error, old data can be restored in just a few clicks!

We recognize that hosting is about first-class service, support and reliability – and that you want to offer the same to your customers. We treat all our customers with the same level of service and professionalism – whether they are small startups or large companies. We are always happy to hear from you! At the CanSpace We are proud of our excellent customer service. We try to answer all inquiries within half an hour, though most will be answered in less than 10 minutes.

Existing customers can get one Unterstüzungsticket about our customer area. Our support technicians are available 24 hours a day, 7 days a week, We strongly encourage existing customers to use our ticket system so we can properly track your issue.

TEL: 1-888-99-DOT-CA
E-mail: [Email protected]
Like us on Facebook