nov24
Há quinze anos, no contexto da crise financeira de 2008, a criptografia foi revolucionada pelo aparecimento do blockchain, uma tecnologia capaz de registrar informações em bloco por meio de operações em redes descentralizadas. A sua primeira e mais conhecida expressão é o bitcoin, moeda digital que passou rapidamente a ser um dos símbolos da cultura do século XXI. A partir daquele ano, numerosos projetos de inovação começaram a se apresentar com base nas possibilidades abertas pelo blockchain, indicando que as implicações dessa tecnologia para as formas de produção material e simbólica das sociedades modernas serão relevantes no longo prazo. Mas como toda inovação tecnológica em seus primeiros passos, o blockchain tanto provoca a nossa imaginação como suscita muitas dúvidas.
https://scholar.google.com/scholar_url?url=https://www.academia.edu/download/112768344/Blockchain_e_midia.pdf%23page%3D16&hl=en&sa=X&d=18390474869243544200&ei=mP4xZ-fCG7616rQP-8Dk4A0&scisig=AFWwaeb-mnjCmdr3IMPRnja-Den7&oi=scholaralrt&hist=gzTQwrgAAAAJ:11441452008552841197:AFWwaeazj6lQL8sGufHlpdBUpJ92&html=&pos=0&folt=rel&fols=
mar24
BLOCKCHAIN JUSTICE:
Exploring Decentralising Dispute Resolution Across Borders
Abstract
It is well known that the raison d'etre of Distributed Ledger Technology (DLT) is to enable peer-to-peer transactions that do not require Trusted Third Parties (TTP). Commercial security is a major concern for users in this new era: intermediaries are increasingly seen as security holes and removed from protocols as a result of a growing desire to maintain control over transactions. The need for independence from TTPs has evolved into a counterculture that moves blockchainers away from central authority, the courts and the world as we know it. To date, all existing online dispute resolution (ODR) processes in DLT and related tools such as smart contracts do not reflect the vision of blockchain as a counterculture. They exclusively use adjudicative methods involving one or more TTPs deciding via on-chain incentivised voting systems. This paper aims to discuss why non-adjudicative methods shall have a cultural priority over adjudicative ones, showing why they might be preferred by blockchainers due to risk management and distrust concerns. Furthermore, we introduce a prototype of a non-adjudicative ODR model (“Aspera”) in which users can have total control over the outcome of the dispute in a TTP free environment.
[PDF] Blockchain Justice: Exploring Decentralising Dispute Resolution Across Borders
mar24
Two months ago, media giant Fox Corp. partnered with Polygon Labs, the team behind the Ethereum-focused layer-2 blockchain, to tackle deepfake distrust.
Fox and Polygon launched Verify, a protocol that aims to protect their IP while letting consumers verify the authenticity of content. And since then, government regulatory committees, publishers and others have seen this as a viable solution to a “today problem,” Melody Hildebrandt, CTO of Fox Corp., said on TechCrunch’s Chain Reaction podcast.
Hildebrandt said she’s bullish that more news outlets, media companies and others will integrate this technology as AI technology goes into the mainstream. It may be beneficial to both AI companies and creators: The models gain knowledge and outlets and individuals can verify their work.
And it’s important for end users, who are uncertain about whether the content they’re consuming is trustworthy or not, Mike Blank, COO at Polygon Labs, said during the episode.
“There’s obviously the beat on the hill,” Hildebrandt said. Although most publishers want to participate in this type of ecosystem, they don’t want to sign away “all their crown jewels,” she added. This means imposing some technical guardrails that allow creators to get ahead, but still being able to maintain some optionality in the future.
https://techcrunch.com/2024/03/14/blockchain-tech-could-be-the-answer-to-uncovering-deepfakes-and-validating-content/?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuZ29vZ2xlLmNvbS8&guce_referrer_sig=AQAAALaAZSCTQdMczwORjo-l10C8PDdZoAyTu40zxJKutPUSwtPmcQYQNqSIlJ0B3sDmzRhpG32ApTDAymWpHDw38gpN4XKNnQie8FAabRNOrJC7ZH8GblkeLmKY7EXYnKpjmry8n5pc_7DNxOo1NwAga7RsOPOkzIDuAyceAqEPjV9A
dez23
The crux of the problem is that image-generating tools like DALL-E 2 and Midjourney make it easy for anyone to create realistic-but-fake photos of events that never happened, and similar tools exist for video. While the major generative-AI platforms have protocols to prevent people from creating fake photos or videos of real people, such as politicians, plenty of hackers delight in “jailbreaking” these systems and finding ways around the safety checks. And less-reputable platforms have fewer safeguards.
Against this backdrop, a few big media organizations are making a push to use the C2PA’s content credentials system to allow Internet users to check the manifests that accompany validated images and videos. Images that have been authenticated by the C2PA system can include a little “cr” icon in the corner; users can click on it to see whatever information is available for that image—when and how the image was created, who first published it, what tools they used to alter it, how it was altered, and so on. However, viewers will see that information only if they’re using a social-media platform or application that can read and display content-credential data.
https://spectrum.ieee.org/deepfakes-election
out23
So, how do we combat this? One word: Blockchain. Yeah, the same technology that’s behind cryptocurrencies like Bitcoin can also be a safeguard against deepfakes.
To understand it more, you can get and read this book. It’s called Blockchain Bubble or Revolution: The Future of Bitcoin, Blockchains, and Cryptocurrencies.
Blockchain can create a secure, immutable record of digital assets, including videos and photos. If you’ve got a personal community on social media, you can use blockchain to verify the authenticity of content.
When a video is uploaded, it can be timestamped and recorded on a blockchain. If someone tries to pass off a deepfake as real, the blockchain record can be checked to confirm its legitimacy.
https://nicole-ven.medium.com/how-to-outsmart-deepfakes-the-one-solution-that-actually-works-2548eefa5455
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