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Achieving Food Security in Africa South of the Sahara Through Food Value Chains

Time: 
12:15 pm to 1:45 pm EDT (Please join us for lunch beginning at 11:45 am); Live webcast coming up at the scheduled time.

Presenter(s): 
Moderator: Rajul Pandya-Lorch, IFPRI | Welcome: Astrid Jakobs de Pádua, Embassy of the Federal Republic of Germany | Paul Mwafongo, Embassy of the United Republic of Tanzania | Speakers: Khamaldin Mutabazi, Sokoine University of Agriculture SUA in Morogoro, Tanzania | Ephraim Nkonya, IFPRI | Stefan Sieber, Leibniz Centre for Agricultural Landscape Research ZALF
Contact/RSVP: 

RSVP to Simone Hill-Lee - s.hill-lee@cgiar.org, 202-862-8107.

Location: 

International Food Policy Research Institute
2033 K Street, NW, Washington, DC
Fourth Floor Conference Facility

This seminar will present findings of food and nutrition security research projects in Africa south of the Sahara (SSA) funded by German federal ministries. The presentations will highlight results of the projects, share success stories of food value chains, and outline key policies required to achieve food and nutrition security through the value chain approach.

Stefan Sieber will present an overview of German research programs and related projects conducted in SSA. Khamaldin Mutabazi and Ephraim Nkonya will present empirical evidence of both success stories and challenges of the value chain approach in Tanzania, as well as discuss policies that enhance or pose challenges for market development in SSA.




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Re: [manrs-community] Implementing Decentralized RPKI with Blockchain Technology

Posted by Brandon Z. on Nov 13

Hi guys,

In technical terms, RIRs can indeed configure IPs to become RPKI invalid.
However, my point is not to remove RPKI but to make it invalid.

This could happen; for example, RIPE was required to remove all IRRs
related to Russia (I'm glad RIPE has not done this).

Decentralization can address this issue; it's not just a hype concept.

Best,
*Brandon Z.*
HUIZE LTD
www.huize.asia <https://huize.asia/>| www.ixp.su | Twitter...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Roman Tatarnikov on Nov 13

Brandon, I blockchain and BGP were discussed on NANOG some years ago, back
when the deployment of RPKI was brought up. Short answer - it won't solve jack
and will use tons of computation power.

I'm not really going to go into details, but essentially adding a band-aid
instead of adopting RPKI and addressing the issues with RIR is not the best
course of action.




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Francis Booth via NANOG on Nov 13

In such a scenario I’d argue for less automation to prevent such a rogue RIR from being able to cause such a disruption
to the Internet.

To expand on what Tom mentioned, Networks are not yet rejecting announcements with a NotFound validation. Even if such
an event did occur I’d be willing to bet most network operators are going to be leaning on their interpersonal
connections rather than automation to reestablish peering with networks....




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

Hi Brandon,

That's not how blockchain works. Validation is time-bound and
irrevocable. Only the current key-holder can transfer the validated
material to another entity. Effecting such transfers requires minimal
computation, on the order of a few HTTPS transfers.

Under block chain, an RIR would not be able to revoke number
resources, not even for non-payment or fraud. And if the keys
associated with an address block were lost or stolen,...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Jason Iannone on Nov 13

Imagine decentralizing x.509.

On Wed, Nov 13, 2024 at 11:42 AM Roman Tatarnikov <r.tatarnikov () intlos org>
wrote:




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Brandon Z. on Nov 13

Hi William,

Okay, this would lead to a permanent loss of resources, whereas
cryptocurrency does not have this issue.

the rules for NANOG and I presume it's against the rules for MANRS as
well.

Noticed that; sorry for posting twice as well.

Best,
*Brandon Z.*
HUIZE LTD
www.huize.asia <https://huize.asia/>| www.ixp.su | Twitter

This e-mail and any attachments or any reproduction of this e-mail in
whatever manner are confidential...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Jason R. Rokeach via NANOG on Nov 13

For what it's worth, this is quite implementation specific and leaves a lot of room for intentional and appropriate
design decisions. Custom smart contract (think "decentralized program") code could be used to enable the functionality
desired for an RIR, without other functionality.
Let's extrapolate: An RIR could use smart contracts with immutable code to allow an entity to register a specific block
and retain certain...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Tom Beecher on Nov 13

Incorrect.

If the RIR revokes the resource certificate used to sign the ROA, the ROA
is also then revoked. Validator software will then remove the VRPs that had
been created from that previously valid ROA. If there are no other VRPs
that cover the BGP message parameters, the validator will return NOTFOUND.

If the RIR refused to publish or deleted the ROA, validators will
eventually delete them, which also removes the VRP previously created. If...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

Not really. If it's technically feasible to override or roll back
transactions, you've violated one of the central tenets of block
chain. You can design a system that allows transactions to be rolled
back or changed by a central authority but the result would not be a
block chain and would not have the desired characteristic of
resistance against government compulsion.

Regards,
Bill Herrin




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Jason R. Rokeach via NANOG on Nov 13

transactions, you've violated one of the central tenets of block
chain.

To be clear, I did not state such. Ownership can be transferred by smart contract. This does not violate a core tenet
of blockchains and is a key feature of almost all blockchains which still exhibit signs of life.




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

If the RIR can institute a revocation via smart contract, for any
reason, then you haven't achieved any resilience against government
compulsion applied to the RIR, which was Brandon's reason for
considering blockchain in the first place.

Regards,
Bill Herrin




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Matt Corallo on Nov 13

Thanks for raising this topic. In all the rush to deploy RPKI I fear these issues are not talked
about enough.

A variant of this could make some sense, the issue is that it doesn't do you a whole lot of good to
have a local RPKI anchor that you and your local community look to if the global internet community
isn't looking at it - sure, your IPs are routable to a few of your friends, but they can't reach
Google...oops....




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Seth David Schoen on Nov 13

Matt Corallo writes:

There are some tools out there either directly using or inspired by
Certificate Transparency that facilitate transparency logging of other
kinds of events. It might be interesting to put RPKI events into one
of those.

The big difference between blockchains and systems like CT is that the
latter do have single points of failure (an operator can shut down the
log completely, or break it in other ways), or at least relatively...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by David Conrad via NANOG on Nov 14

Tom,

Something I’ve been curious about for some time: since deployment of RPKI is (mostly) hosted by the RIRs and
ultimately, the RIRs control the validation chain, what would happen if the RIR creates (or, if you prefer, is directed
by court order to create) INVALIDs?

Regards,
-drc




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AICPA and Wall Street Blockchain Alliance Announce Collaboration

Associations Plan Joint Effort to Advance Blockchain Technology for Accounting Profession

NEW YORK (Oct. 23, 2017) – The American Institute of CPAs (AICPA) and Wall Street Blockchain Alliance (WSBA), a leading nonprofit trade association promoting the comprehensive adoption of blockchain technology across global markets, today announced plans to work together to define the impact of blockchain technology for the accounting profession and advance the interests of both the public and profession in this area.

As part of this collaboration, the AICPA – through its technology arm, CPA.com – will administer the WSBA’s working group on tax and accounting, a focal point for advocacy and education on blockchain adoption within the profession. Other existing WSBA working groups include research and innovation, legal, and technology and product. The working group model is designed to provide a forum for experts to share information, guide advocacy and technical efforts and create broader educational opportunities—such as webcasts, roundtables and other content—to address issues arising from the adoption of blockchain, distributed ledgers and smart contract technologies.

“The accounting profession is built on confirmation and verification, and that’s what blockchain is all about,” said AICPA President and CEO Barry C. Melancon, CPA, CGMA. “This technology can have a profound impact on accounting and finance going forward, and it’s important we make sure that its adoption proceeds in a way that’s in the best interest of the public and our financial markets. Our working relationship with the WSBA, combined with our expanded global reach through the Association of International Certified Professional Accountants, will help further that goal.”

The collaboration was announced at the fall meeting of the AICPA’s governing Council in San Antonio, Tex.

“The WSBA is very pleased to be collaborating with the AICPA and CPA.com to guide the evolution of the global accounting profession in a future with blockchain technology,” said Ron Quaranta, chairman of the WSBA. “We look forward to working together to advance the world of accountancy and its use of blockchain, as accountants become integral participants in the adoption of this innovative technology for global markets.”

As a first step in collaboration, the AICPA will be part of an accounting-related panel at the WSBA’s Blockchain for Wall Street education day on Nov. 14, 2017.

“Blockchain is one of several innovations that are reshaping the accounting profession,” said Erik Asgeirsson, president and CEO of CPA.com, one of the participants in the upcoming panel. “Our role with the WSBA working group is to guide and speed the use of blockchain technology as it applies to the core areas of an accounting practice.”

About the Wall Street Blockchain Alliance

The Wall Street Blockchain Alliance (WSBA) is an industry leading 501(c)(6) non-profit trade association created for financial market professionals, by financial market professionals. Its mission is to guide and promote comprehensive adoption of blockchain and distributed ledger technology across global financial markets.

For information about the WSBA, including membership, visit www.wsba.co or email to info@wsba.co.

About the American Institute of CPAs

The American Institute of CPAs (AICPA) is the world’s largest member association representing the CPA profession, with more than 418,000 members in 143 countries, and a history of serving the public interest since 1887. AICPA members represent many areas of practice, including business and industry, public practice, government, education and consulting. The AICPA sets ethical standards for its members and U.S. auditing standards for private companies, nonprofit organizations, federal, state and local governments. It develops and grades the Uniform CPA Examination, offers specialized credentials, builds the pipeline of future talent and drives professional competency development to advance the vitality, relevance and quality of the profession.

The AICPA maintains offices in New York, Washington, DC, Durham, NC, and Ewing, NJ.

Media representatives are invited to visit the AICPA Press Center at www.aicpa.org/press.

About the Association of International Certified Professional Accountants

The Association of International Certified Professional Accountants (the Association) is the most influential body of professional accountants, combining the strengths of the American Institute of CPAs (AICPA) and The Chartered Institute of Management Accountants (CIMA) to power opportunity, trust and prosperity for people, businesses and economies worldwide. It represents 650,000 members and students in public and management accounting and advocates for the public interest and business sustainability on current and emerging issues. With broad reach, rigor and resources, the Association advances the reputation, employability and quality of CPAs, CGMAs and accounting and finance professionals globally.

CPA.comOct 23rd, 2017Press Releases




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Blockchain Rewards Email Scam

What is "Blockchain Rewards" scam campaign?

Our team has analyzed this scam campaign and found that there are at least two versions of this scam email. In both cases, the goal is to trick recipients into disclosing personal information on a deceptive website. Emails of this type are called phishing emails. Recipients should avoid such emails.




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Pepe Unchained Presale Hits $28 Million as Analysts Predict 10x Gains in Ongoing Bull Market Rally

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Pepe Unchained (PEPU) Sees Whale Interest as the Largest Meme Coin Presale Nears Its End in 30 Days

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Competition heats up for potential sale of 7-Eleven chain

Canada-based Alimentation Couche-Tard isn't the only retail giant proposing to buy the 7-Eleven stores from its Japanese owner.




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Competition heats up for potential sale of 7-Eleven chain

Canada-based Alimentation Couche-Tard isn't the only retail giant proposing to buy the 7-Eleven stores from its Japanese owner.




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FedEx: we have a vision to make supply chains smarter for everyone

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UPS Healthcare extending cold chain capabilities “to support a rapidly growing and innovating market”

UPS Healthcare has announced an expansion of its European hub facility in Roermond, the Netherlands by 21,860 sqm, adding in-demand freezer farm capacity, a crucial link in a strong and reliable supply chain for a growing number of complex biopharma products.




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DHL Supply Chain: our AI applications are designed to unlock greater value for our customers

DHL Supply Chain has launched a significant project in the field of generative AI with the support of Boston Consulting Group (BCG).




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Research reveals manufacturing and supply chain decentralisation preventing analytic maturity – Alteryx

Data Stack Evolution: Legacy Challenges and AI Innovation, a global report which included a survey of 775 manufacturing and supply chain IT decision-makers, found that almost three in five (58%) said their data leadership and IT teams work in silo.




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A chain of events

Students at OM Russia’s Discipleship Centre help plant churches, start a rehab centre and begin a farming business.




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Lollipop Chainsaw RePOP Headed to PS4 and Xbox One on December 2

Developer Dragami Games announced Lollipop Chainsaw RePOP will launch for the PlayStation 4 and Xbox One on December 2 for $44.99.

The game first released for the PlayStation 5, Xbox Series X|S, Nintendo Switch, and PC via Steam in September.

The PS4 and Xbox One versions run in 1080p at 30 frames per second or higher. The Xbox Series X|S and Xbox One versions support Smart Delivery, however, the PS5 and PS4 versions do not support cross-buy.

A life-long and avid gamer, William D'Angelo was first introduced to VGChartz in 2007. After years of supporting the site, he was brought on in 2010 as a junior analyst, working his way up to lead analyst in 2012 and taking over the hardware estimates in 2017. He has expanded his involvement in the gaming community by producing content on his own YouTube channel and Twitch channel. You can contact the author on Twitter @TrunksWD.

Full Article - https://www.vgchartz.com/article/463051/lollipop-chainsaw-repop-headed-to-ps4-and-xbox-one-on-december-2/




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Kathryn Kuhlman Medallion Coin Keychain Medal - KATHRYN KUHLMAN MEDALLION KEYCHAIN WHICH WAS GIVEN OUT TO SPECIAL GUESTS IN 1972 TO COMMEMORATE HER 25 YEARS OF SERVICE IN PITTSBURG -- Click on the coin photo then click on the right side arrow to view a ph

The sculpting was done by E. Frudakis (the Uncle of Dino Kartsonakis, her pianist). Condition = The medallion and keychain are both in great condition with no damage or other issues. The medallion is made of solid bronze or brass. SEE PICS



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Net Alpha Announces materialx Decision Support – A Cloud-Based Service for Supply Chain Management Organizations that Enables Better Raw Material Purchase Decisions

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Napa's Bouchaine Vineyards, a beacon for the arts, hosts two classical music events this weekend

A free virtual performance from The Philadelphia Orchestra will follow an in-person performance from world-renowned violinist Ray Chen and pianist Julio Elizalde.




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GSB Gold Standard Banking: Josip Heit starts Blockchain Project G999

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Josip Heit: G999 Blockchain - Gold Standard Group plans IPO in 2021

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Josip Heit: GSB blockchain IT powerhouse presents latest developments

Josip Heit, CEO of the Gold Standard Group, presents the world's first GS solid gold credit card (GS lifestyle card) made of pure gold on 01 February 2021!






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Which hotel chain has the highest market value in India?

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The Domestic EV Supply Chain Is Getting A Big Dose Of Synthetic Graphite

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Jan 16 - Veneration Of The Precious Chains Of The Apostle Peter




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Jan 16 - Chains of the Apostle Peter




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Veneration of the Precious Chains of the Holy and Glorious Apostle Peter