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On-chain

On-chain refers to any transaction or data point that is recorded directly on the blockchain, ensuring transparency, immutability, and public verifiability. From on-chain identity (DID) to verifiable provenance of assets, the "everything on-chain" movement is the core of Web3’s trustless architecture. In 2026, sophisticated on-chain analytics tools allow users to audit protocol reserves and track capital flows in real-time. This tag focuses on the value of transparency, block explorer utility, and the distinction between on-chain execution and off-chain scaling.

38619 Articles
Created: 2026/02/02 18:52
Updated: 2026/02/02 18:52
In-depth analysis of the GENIUS Act: What are the key impacts on the stablecoin market?

In-depth analysis of the GENIUS Act: What are the key impacts on the stablecoin market?

Today (June 17, local time) American history has ushered in an important development - the U.S. Senate passed the GENIUS Act . The bill will establish a clear federal regulatory

Author: PANews

2025/06/18

Anora launches OnlyStans Studio, an AI virtual influencer studio based on Spectral Lux framework

Anora launches OnlyStans Studio, an AI virtual influencer studio based on Spectral Lux framework

PANews reported on June 18 that according to official news, AI virtual influencer Anora announced the official launch of the AI agent influencer studio OnlyStans Studio, which supports users to

Author: PANews

2025/06/18

Iranian exchange Nobitex loses a total of about $81.7 million on Tron, EVM, and BTC chains

Iranian exchange Nobitex loses a total of about $81.7 million on Tron, EVM, and BTC chains

PANews reported on June 18 that according to the SlowMist team, the Iranian cryptocurrency exchange Nobitex detected signs of unauthorized access to some of its information infrastructure and hot wallets.

Author: PANews

2025/06/18

JD.com to support stablecoin shopping by launching its own HKD-backed stablecoins

JD.com to support stablecoin shopping by launching its own HKD-backed stablecoins

Hong Kong-based e-commerce firm JD.com plans to issue its own stablecoin backed by the Hong Kong dollar by the end of 2025 and potentially support other stablecoins. In an interview with Bloomberg Businessweek, the e-CEO of JD CoinChain Technology Liu…

Author: Crypto.news

2025/06/18

ZachXBT: Iranian Crypto Exchange Nobitex Suspected of Being Attacked by Hackers

ZachXBT: Iranian Crypto Exchange Nobitex Suspected of Being Attacked by Hackers

PANews reported on June 18 that on-chain detective ZachXBT revealed that the Iranian cryptocurrency exchange Nobitex was suspected of being hacked, with a large number of suspicious withdrawals occurring on

Author: PANews

2025/06/18

Exclusive interview with JD.com CoinChain CEO: It is expected to obtain a license and launch a stable currency in early Q4. Bitcoin was first purchased in 2011

Exclusive interview with JD.com CoinChain CEO: It is expected to obtain a license and launch a stable currency in early Q4. Bitcoin was first purchased in 2011

Written by Yin Chen; Edited by Deng Yongyun Source: Bloomberg Businessweek In 2011, Liu Peng, who was working on the WeChat Pay team at the time, bought his first Bitcoin.

Author: PANews

2025/06/18

Fileverse releases decentralized spreadsheet tool dSheets to challenge Google Sheets and Excel

Fileverse releases decentralized spreadsheet tool dSheets to challenge Google Sheets and Excel

PANews reported on June 18 that according to The Block, Ethereum infrastructure startup Fileverse launched dSheets, an open source spreadsheet tool focusing on privacy and on-chain interaction, positioned as a

Author: PANews

2025/06/18

Ondo Finance and Solana jointly launched a global market alliance to promote the listing of assets such as US stocks on the blockchain

Ondo Finance and Solana jointly launched a global market alliance to promote the listing of assets such as US stocks on the blockchain

PANews reported on June 18 that Ondo Finance announced the launch of the "Global Markets Alliance", which will work with Solana Foundation, BitGo, 1inch, Trust Wallet and other institutions to

Author: PANews

2025/06/18

MEV Bots Now Clog Blockchains Faster Than They Can Scale, Flashbots Warns – Is Raw Throughput Obsolete?

MEV Bots Now Clog Blockchains Faster Than They Can Scale, Flashbots Warns – Is Raw Throughput Obsolete?

Flashbots, a leading research group focused on MEV ( Maximal Extractable Value ), has issued a new warning that spam from MEV bots is quickly becoming the main barrier to blockchain scalability. In a thesis published this week, Flashbots said that “MEV has become the dominant limit to scaling blockchains,” pointing to rising inefficiencies across Ethereum rollups and Solana. The group stated that current scaling efforts by major blockchains are being neutralized by increasingly dominant MEV-driven activity. Flashbots Exposes Scaling Illusion on Rollups As layer-1 and layer-2 networks race to boost throughput, the report finds that wasteful on-chain activity from MEV bots is consuming a growing share of available capacity. On Solana, MEV bots are now responsible for 40% of all blockspace . On Ethereum’s OP-Stack rollups like Base and OP Mainnet, spam bots account for over half of all gas usage while paying just a fraction of the network’s fees. Failed transactions consume a disproportionate share of network Compute Units (CUs) relative to the fees they generate. Arb bots are a key factor: their failed txs make up ~40% of all CUs used but only ~7% of total fees paid pic.twitter.com/RJl2O65l2n — chris (@chrischang43) May 17, 2025 The report noted that between November 2024 and February 2025, Base added 11 million gas units per second of throughput, nearly triple the Ethereum mainnet. However, most of that additional capacity was devoured by bots running repetitive, low-value trades. This activity creates artificially high fees for users and renders technical scaling efforts less effective. Flashbots introduced a new metric, “effective gas throughput,” to show the difference. Despite Base increasing its total gas capacity by 11 million gas per second over several months, the throughput available to real users barely changed. Almost all new capacity was eaten up by bots. The report identified spam as a specific kind of wasteful behavior, mostly DEX queries that never result in token transfers. These could be done off-chain, but instead they clog networks and raise the computational load on nodes. On Base, bots were responsible for 56% of gas usage and 26% of L1 data availability usage, but paid just 14% of fees. Spam is also driving up user fees. Flashbots explained that despite technical progress in reducing costs on rollups, fees stay artificially high due to bots continuously bidding for blockspace. “The promise of scaling is to drive fees near zero,” the report stated. “But what we’re seeing is a fee floor created by spam—not user demand.” The report also showed that this spam is highly concentrated. Just two searchers are behind over 80% of all spam on Base. According to Flashbots, the structure of the current market makes spam more profitable than participating in a fair auction, leading to inefficient and wasteful outcomes. “Spam bots are flooding blocks, not to serve users, but to extract MEV,” the report said. “It’s a structural issue, not just a technical one.” Flashbots Proposes MEV Auction Fix Amid Rising Exploits Flashbots has proposed a new framework to address growing concerns around MEV exploitation in Ethereum and other blockchain networks. Rather than relying on gas-heavy spam auctions, Flashbots suggests a shift toward explicit MEV auctions, allowing searchers to bid directly for transaction ordering rights. This, they argue, would reduce network congestion and wasted fees while preserving efficiency for traders and validators. The organization is also advocating for “programmable privacy,” a model that allows bots to view live blockchain state and plan profitable trades without the ability to front-run users or leak sensitive data. Flashbots is currently testing this concept using Trusted Execution Environments (TEEs), which allow secure transaction backrunning without the back-run transactions to abuse. “We’ve proven this on Ethereum L1,” Flashbots wrote in its latest report. “And we’re actively adapting it for L2s.” The proposal comes at a key time as concerns over MEV-related abuse continue to mount. According to EigenPhi data, more than 33,000 users were victims of sandwich attacks in March 2025, orchestrated by just 101 entities. These attacks now account for nearly $1 billion in weekly trading volume on Ethereum-based DEXs. In 2023, a single MEV searcher earned over $1 million in one day using sandwich attacks on Ethereum. On that day alone, the address accounted for 7% of total gas usage across the network. The same operator continued to profit into 2024 with improved strategies. The issue isn’t limited to Ethereum. On Solana, a well-known MEV bot named “arsc” exploited users through similar tactics, generating around $30 million in just two months. MEV allows validators to extract profits by reordering or inserting transactions. While it can boost DeFi efficiency, it also drives up fees and undermines fairness, especially for beginners unfamiliar with blockchain mechanics. Critics warn that unchecked MEV practices could deter user adoption and erode trust in decentralized finance .

Author: CryptoNews

2025/06/18

Fairmint Urges the SEC to Adopt Blockchain Framework for Private Equity Markets

Fairmint Urges the SEC to Adopt Blockchain Framework for Private Equity Markets

In a bid to modernise the private equity markets, Fairmint, an on-chain securities platform, has urged the US Securities and Exchange Commission (SEC) to adopt blockchain framework-based regulatory protocols. On 16 June 2025, Fairmint submitted a detailed seven-point proposal to the SEC’s crypto task force, highlighting the numerous ways in which technology based on a.. The post Fairmint Urges the SEC to Adopt Blockchain Framework for Private Equity Markets appeared first on 99Bitcoins .

Author: 99Bitcoins

2025/06/17

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