ShardLab

ShardLab is to be a beacon of creativity and exploration in the dynamic landscape of blockchain technologies.

[ShardLab @0xShardLab]

When Qubic called its 2025 Monero mining campaign a "51% takeover," the claim appeared to turn on one threshold: whether its hash share had crossed 50%.

A new paper by ShardLab research engineer @iam_suhyeon tests that claim and asks two further questions: what the campaign did to the network, and whether the strategy actually paid off.

The paper, "Inside Qubic's Selfish Mining Campaign on Monero: Evidence, Tactics, and Limits," was accepted at AFT 2026 and presented at the London School of Economics on October 9.

Monero's privacy design makes it difficult to attribute blocks to individual mining pools. The research combined Monero node measurements, Qubic pool observations, community-shared artifacts and disclosed view keys to reconstruct the campaign.

What the data shows:
1. Qubic's observed hash share exceeded 50% during brief periods, but the evidence did not show sustained majority control
2. The network experienced elevated orphaning and deeper reorganizations
3. Across the campaign, Qubic gained no reward advantage over honest mining
4. Qubic did not use one fixed selfish-mining strategy; its block-release decisions varied while the campaign unfolded under active community monitoring

Crossing a threshold, disrupting a network and earning extra rewards are not interchangeable outcomes. In this case, the campaign disrupted Monero without evidence of sustained majority control or an advantage in mining rewards. The findings leave an important question open: what incentives beyond direct mining rewards may motivate this kind of disruption?

"The campaign was not a successful selfish mining or majority attack. If it succeeded at anything, it was marketing. That makes it closer to a Goldfinger-style attack, where the payoff comes from outside the chain."

Suhyeon Lee, Research Engineer at ShardLab

AFT is a leading venue for research on blockchain and financial technologies. Suhyeon studies blockchain security where system behavior, privacy and economic incentives meet, and is also a research fellow at Hashed Open Research. For ShardLab, his work is one example of how we study chain-level security and incentives: by measuring what participants actually do rather than relying on labels or public claims.

If you work on consensus security or mechanism design and want to compare notes, we'd love to hear from you.

Paper: https://t.co/oVUqqRN54E
Suhyeon's research: https://t.co/uOsom5IFi4
Program: https://t.co/NnGCjtcjU6

[Maroo @maroo_io]

https://t.co/CDPhBRfz3p

[Southeast Asia Blockchain Week @SEABWofficial]

The wait is over.

We’re pleased to announce SEABW 2026, returning to Bangkok, May 18-24, 2026!

📆Main Conference: May 20–21, 2026

An elevated week of high-level dialogue, carefully curated experiences, and the people shaping what comes next for Web3 in Southeast Asia.

Mark your calendar. SEA you in Bangkok 🇹🇭

🔗 https://t.co/R8NPqdO4Aa

[ShardLab @0xShardLab]

Happy New Year from ShardLab!

2025 challenged us and shaped us. Through it all, our community, partners, and team never wavered.

Thank you for building the future of Web3 with us. Here's to an even stronger 2026.

[ShardLab @0xShardLab]

We’re excited to co-host the K-Builders Meetup with @StoryProtocol, @worldnetwork, & @dsrvlabs on Nov 20 at World Flagship Space Seoul 🇰🇷

Join us to connect, share ideas, & unlock the potential of Korea’s builder community in a rapidly evolving Web3 market.

🔗 https://t.co/M4WH0KITWP

[The DATA Foundation @datafdn]

Korea is known for its killer crypto adoption, but the real momentum lies with its builders.

To all the innovators in Seoul, this one’s for you:

→ Join us on Nov 20 for a K-Builders Meetup

→ Co-hosted by @worldnetwork, @dsrvlabs, & @0xShardLab at World Flagship Space Seoul 🇰🇷

[ShardLab @0xShardLab]

Amazing evening at “The Hanoi Builder’s Table” during @gmvn_official! 🇻🇳

Thanks to everyone who joined for great talks, new connections, and delicious Vietnamese food.

Thank you @SuiNetwork for hosting this amazing dinner together 💙

Stay tuned for the next gathering!

[ShardLab @0xShardLab]

Southeast Asia isn’t just adopting blockchain — it’s rebuilding it locally.

Recent report from @Tiger_Research_ dives into how countries like Vietnam, Indonesia, and Thailand are developing Layer 1s tailored to their own rules, infra, and goals.

[Tiger Research @tiger_research_]

https://t.co/8tYuHwmvgN

[ShardLab @0xShardLab]

Tourism = ~12% of GDP. These moves aim to attract digital-native travelers, ease FX friction & position Thailand as a crypto-forward destination.

Thailand isn’t just regulating crypto — it’s experimenting, incentivizing, and setting regional examples.

[ShardLab @0xShardLab]

🇹🇭 Thailand is leading in Web3 with bold govt initiatives.

From crypto sandboxes to stablecoin pilots, Thailand is positioning itself as a leader in real-world blockchain adoption, particularly in the tourism sector.

Here’s how 👇

[ShardLab @0xShardLab]

4️⃣ Thailand will waive crypto capital gains taxes (2025–2029) on trades via licensed platforms to attract global investors.

🔗 @DecryptMedia — https://t.co/lHrZUGim7T

[Decrypt @DecryptMedia]

Thailand Exempts Crypto Capital Gains to Boost Global Hub Ambitions
► https://t.co/fx4qqtLXSG https://t.co/fx4qqtLXSG

[ShardLab @0xShardLab]

5/5 🇭🇰 OSL Group Expands into Indonesia 🇮🇩

Hong Kong-listed @osldotcom is acquiring a 90% stake in Indonesian crypto exchange Evergreen Crest for $15M. The deal gives OSL access to spot and derivatives trading licenses—a major step into one of Southeast Asia’s most promising Web3 markets.

OSL cites Indonesia’s young population, strong economic growth, and rising crypto adoption as key factors behind the move.

https://t.co/Dot88ewulJ

[The Block @TheBlockCo]

Hong Kong's OSL eyes Indonesia expansion with $15 million crypto exchange acquisition https://t.co/BTQv06qLg2

[ShardLab @0xShardLab]

1/ The crypto landscape in Southeast Asia is evolving rapidly. Here are recent key updates from across the region—from regulatory moves to ecosystem growth and major business plays. 🧵👇

[ShardLab @0xShardLab]

4/ 🇹🇭 Thai SEC Moves to Shut Down 5 Crypto Exchanges

Thailand’s SEC is taking enforcement action against five crypto exchanges for regulatory violations, including failures in custody and KYC standards. The move signals Thailand’s increasing push for compliance and investor protection.

https://t.co/F0TUNLvKAc

[BeInCrypto @beincrypto]

🇹🇭 Thailand Shuts Down 5 Crypto Exchanges

The SEC will block Bybit, OKX & 3 others on June 28, 2025 for operating without a license — part of a crackdown on money laundering. 🛑

Do you support stricter crypto rules?

By @KayyGilani
https://t.co/n4NDoyh3L4

[#Hashed @hashed_official]

Yongbeom (YB) Kim, CEO of Hashed's think tank, Hashed Open Research, has been appointed Chief Policy Officer at Korea's Presidential Office.

Since founding Hashed Open Research, YB Kim has significantly contributed to blockchain and cryptocurrency research, actively influencing policy developments domestically and internationally. He previously served as Vice Minister at Korea's Ministry of Economy and Finance during the 2017 - 2022 administration, successfully leading crisis management and stabilization policies within the cryptocurrency industry.

As the inaugural Chief Policy Officer for President Lee Jae-myung's administration, he is expected to play a pivotal role in advancing blockchain and Web3 initiatives, including fostering crypto-friendly policies and introducing a Korean Won-based stablecoin.

Hashed sincerely congratulates YB Kim on his new role and remains committed to fostering the sustainable development of Korea's blockchain ecosystem.

👉 Full PR: https://t.co/JFpIIfLnig