Bitcoin-pegged assets issued on alternative blockchains had already become a major segment of the crypto market, and the figures cited in the source article show just how large that trend had grown. By mid-May, nearly 300,000 BTC were represented through wrapped or synthetic bitcoin projects on Ethereum and Binance Smart Chain (BSC), with a combined value of more than $12.8 billion. That made ETH and BSC the clear leaders in hosting tokenized bitcoin, well ahead of layer-2 and sidechain alternatives.
Ethereum Held the Largest Share of Tokenized Bitcoin
Among all networks discussed in the source material, Ethereum accounted for the biggest concentration of bitcoin-pegged assets. Data referenced from Dune Analytics showed that 225,975 BTC had been connected to Ethereum through several token formats. Those included WBTC with 178,865 BTC, HBTC with 31,906 BTC, RENBTC with 12,009 BTC, IMBTC with 1,327 BTC, SBTC with 1,149 BTC, TBTC with 1,039 BTC, and PBTC with 648 BTC.
Within that group, Wrapped Bitcoin (WBTC) was by far the dominant product. The article said WBTC alone represented more than $7 billion in value at the time, making it not only the largest bitcoin-pegged token project but also one of the biggest crypto assets overall by market capitalization. The underlying collateral for WBTC was maintained by custodian Bitgo, an important operational detail because these tokenized BTC products depend heavily on trust assumptions, reserves management, and redemption infrastructure.
BSC Emerged as a Powerful Challenger Through BTCB
While Ethereum led in total volume, Binance Smart Chain had already developed into a major venue for bitcoin-pegged liquidity. The main BSC-based product highlighted in the article was BTCB, Binance’s bitcoin-backed token. According to market data cited from coinmarketcap.com, there were 54,598.02 BTCB circulating on BSC, representing a fully diluted market capitalization of more than $2 billion. During the trading session referenced in the report, BTCB recorded roughly $159 million in 24-hour volume.
The article also noted a discrepancy between CoinMarketCap figures and data from bscan.com. The latter showed a total of 80,501 BTCB and a circulating supply of about 73,105.515028 BTCB. If the bscan.com figures were used, the total number of bitcoin-pegged tokens across Ethereum and BSC would reach approximately 299,080 BTC. Even allowing for data-source differences, the broad conclusion remained unchanged: tokenized bitcoin on these two smart-contract networks had reached massive scale.
Layer-2 and Sidechain Competitors Were Far Smaller
The scale of ETH and BSC becomes even clearer when compared with other bitcoin-enabled networks mentioned in the article. The Lightning Network, a layer-2 system designed for faster bitcoin payments, held around 1,300 BTC, worth roughly $56.3 million at the time. RSK, a smart-contract platform linked to Bitcoin, had 1,594 RBTC in circulation, valued at about $69 million. Meanwhile, Blockstream’s Liquid network accounted for 2,914 L-BTC, worth around $126 million.
Combined, Lightning BTC, RBTC, and L-BTC represented only about $251 million in value. Compared with the $12.8 billion hosted on Ethereum and BSC, that total was relatively small. The contrast illustrated how strongly the market had favored programmable smart-contract ecosystems over specialized sidechains or payment-focused scaling networks when it came to deploying bitcoin in broader financial applications.
Why Tokenized Bitcoin Expanded So Quickly
The source article tied this growth to the broader rise of decentralized finance. Bitcoin-pegged tokens let BTC holders use their assets in ecosystems that support lending, swapping, liquidity provision, derivatives, and other on-chain financial strategies. Instead of holding bitcoin passively on the native Bitcoin blockchain, users could move economic exposure to networks with more extensive smart-contract functionality.
Ethereum had a deep advantage here because of its mature DeFi stack. BTC-linked tokens on Ethereum could be traded or deployed across a wide range of decentralized exchanges and protocols, including Uniswap, Sushiswap, 0x Native, Curve, Balancer, Bancor, Tokenlon, Dodo, Synthetix, dYdX, Kyber, and Airswap. This rich market structure helped reinforce Ethereum’s position as the main destination for wrapped BTC.
BSC, while newer, benefited from EVM compatibility and rapidly expanding exchange activity. The article pointed specifically to platforms such as Pancakeswap and Binance DEX, which gave users accessible trading venues for BSC-native assets including BTCB. This growing liquidity environment likely contributed to BSC’s quick rise in tokenized bitcoin adoption.
Cross-Chain Utility and Lower-Fee Appeal
The article also highlighted a practical reason for using bitcoin-pegged tokens on alternative chains: cost and flexibility. Tokenized BTC can support cross-chain trading strategies and can make it easier for users to access DeFi applications without interacting directly with the Bitcoin base layer. In some cases, using BTC on another chain may also reduce transaction costs relative to operating in more congested environments.
That does not mean the trade-offs disappear. Wrapped and synthetic bitcoin products can introduce additional dependencies, such as custodians, bridge mechanisms, or protocol-specific collateral structures. But from a usage perspective, the numbers in the article suggest that the market was willing to accept those trade-offs in exchange for liquidity, composability, and DeFi access.
Ethereum and BSC Were Cementing Their Lead
The broader takeaway from the source material is that, by the end of the first quarter of 2021 and into mid-May, Ethereum and Binance Smart Chain had built a substantial lead in the market for bitcoin on non-Bitcoin networks. Their dominance was not just about the raw quantity of tokenized BTC, but also about the surrounding infrastructure: active decentralized exchanges, robust user demand, and increasingly mature DeFi ecosystems.
By contrast, layer-2 and sidechain competitors such as Lightning, Liquid, and RSK remained much smaller in dollar terms. The article concluded that it would take a significant effort for those alternatives to catch up, especially as ETH and BSC continued to deepen their positions in decentralized finance.
In short, the data presented in the report captured a pivotal moment in crypto market structure. Bitcoin was no longer confined to its native chain for many users. Instead, a growing share of BTC exposure was being exported into Ethereum and BSC, where it could circulate as collateral, trading inventory, and DeFi liquidity. With nearly 300,000 BTC represented across those two networks alone, tokenized bitcoin had already become one of the clearest examples of cross-chain capital migration in the digital asset economy.