The Hidden Economic Flaw in Optimistic Rollup Fraud Proofs: A Gas-Cost Anomaly
Two weeks ago, a white-hat researcher triggered a fraud proof on Arbitrum One...
Exchanges
•
CobieFox
•
2026-07-21
#EVM
EVM related articles
Market Prices
BTC
Bitcoin
$66,408.7
+2.05%
ETH
Ethereum
$1,924.12
+1.64%
SOL
Solana
$77.91
+0.62%
BNB
BNB Chain
$573.3
+0.26%
XRP
XRP Ledger
$1.16
+4.22%
DOGE
Dogecoin
$0.0736
+1.97%
ADA
Cardano
$0.1732
+2.85%
AVAX
Avalanche
$6.62
+1.08%
DOT
Polkadot
$0.8539
+3.77%
LINK
Chainlink
$8.63
+1.00%
Fear & Greed
25
Extreme Fear
Market Sentiment
Event Calendar
202610
05
upgrade
Ethereum Pectra Upgrade
Raises validator limit and account abstraction
15
04
halving
Bitcoin Halving
Block reward reduced to 3.125 BTC
12
05
halving
BCH Halving
Block reward halving event
08
04
upgrade
Solana Firedancer
Independent validator client goes live on mainnet
28
03
unlock
Arbitrum Token Unlock
92 million ARB released
18
03
unlock
Sui Token Unlock
Team and early investor shares released
30
04
upgrade
Celestia Mainnet Upgrade
Improves data availability sampling efficiency
22
03
unlock
Optimism Unlock
Circulating supply increases by about 2%
Market Cap
All →
1
Bitcoin
BTC
$66,408.7
1
Ethereum
ETH
$1,924.12
1
Solana
SOL
$77.91
1
BNB Chain
BNB
$573.3
1
XRP Ledger
XRP
$1.16
1
Dogecoin
DOGE
$0.0736
1
Cardano
ADA
$0.1732
1
Avalanche
AVAX
$6.62
1
Polkadot
DOT
$0.8539
1
Chainlink
LINK
$8.63
Trending
Tools
All →Altseason Index
43
Bitcoin Season
BTC Dominance
Altseason
Gas Tracker
Ethereum
28 Gwei
BNB Chain
3 Gwei
Polygon
42 Gwei
Arbitrum
0.5 Gwei
Optimism
0.3 Gwei
🐋 Whale Tracker
🟢
0x210b...0300
1h ago
In
4,128,377 USDC
🔴
0x79b4...548f
6h ago
Out
2,065,520 USDC
🔴
0x9bc7...a904
1h ago
Out
4,215.96 BTC
💡 Smart Money
0xed54...81c2
Arbitrage Bot
+$2.4M
64%
0x73bf...7524
Arbitrage Bot
+$0.6M
70%
0x1ed1...efe2
Arbitrage Bot
-$4.5M
60%