May/June 2019 issue of acmqueue The May/June 2019 issue of acmqueue is out now

Subscribers and ACM Professional members login here


  Download PDF version of this article PDF

Error 526 Ray ID: 50bcbb7c7ea3ccd6 • 2019-08-25 10:02:47 UTC

Invalid SSL certificate








What happened?

The origin web server does not have a valid SSL certificate.

What can I do?

If you're a visitor of this website:

Please try again in a few minutes.

If you're the owner of this website:

The SSL certificate presented by the server did not pass validation. This could indicate an expired SSL certificate or a certificate that does not include the requested domain name. Please contact your hosting provider to ensure that an up-to-date and valid SSL certificate issued by a Certificate Authority is configured for this domain name on the origin server. Additional troubleshooting information here.


Originally published in Queue vol. 17, no. 1
see this item in the ACM Digital Library



Jim Waldo - A Hitchhiker's Guide to the Blockchain Universe
Blockchain remains a mystery, despite its growing acceptance.

Yonatan Sompolinsky, Aviv Zohar - Bitcoin's Underlying Incentives
The unseen economic forces that govern the Bitcoin protocol

Antony Alappatt - Network Applications Are Interactive
The network era requires new models, with interactions instead of algorithms.

Jacob Loveless - Cache Me If You Can
Building a decentralized web-delivery model


(newest first)

TracyM | Sat, 06 Apr 2019 16:00:48 UTC

Compliment: A very good summary of blockchain at the level a network-literate non-math person can understand. Observation: The fees paid for mining are built-in inflation, which hurts the vast majority of the population of the planet. There is no social good coming from blockchain.

In the U.S., a "normal" expectation for Federal Reserve Board policy is 2% inflation, which hurts every single retired person living on an essentially fixed income, and also all the less well-paid members of society that are unable to save a penny for retirement, yet make it possible for others to earn more, especially those making millions and billions.

| Sat, 06 Apr 2019 07:02:25 UTC

The idea seems interesting enough to focus on the transport layer of the Internet and utilize the cloud networks for scalability but more study may be needed to study the block size vs consensus. Also the idea of a single cloud farm or BDN is contrary to the decentralized nature of the protocol. In that case what would be the need of miners or validators ? Why not let end users be the validators like in some DAG systems ?

Leave this field empty

Post a Comment:

© 2019 ACM, Inc. All Rights Reserved.