The project pairs an old internet character with a new retail-focused Ethereum L2.
Robinhood Chain is moving quickly from announcement to ecosystem.
Robinhood first revealed its Layer 2 blockchain on June 30, 2025. A public testnet launched on February 10, 2026 using Arbitrum technology, and the company announced Robinhood Chain mainnet on July 1, 2026.
Robinhood has also moved beyond a simple chain announcement. Its July 2026 mainnet launch was paired with a wider DeFi product push, giving the network a clear financial identity from day one. A meme asset with native retail culture can sit on top of those rails without pretending to be the rails themselves.
The original infrastructure thesis centered on financial assets and bringing more traditional market activity onchain.
At the same time, the network is beginning to develop a native culture.
Mumu the Bull is one project attempting to occupy that cultural layer. The character dates back to 4chan’s /biz/ environment in 2018, where Mumu became the bullish counterpart to Bobo the Bear and a recurring symbol of optimism in trading communities.
That means the project arrives on Robinhood Chain with an identity that predates the network itself.
Mumu’s current strategy also includes formal intellectual-property development. IP Australia lists MUMU as Application 2682039, published and awaiting examination. The project also identifies MUMU THE BULL as Application 2682957. The stated scope covers digital media and NFT-authenticated works, apparel and entertainment branding.
The combination is unusual.
New-chain memecoins usually depend almost entirely on early trading activity and community momentum. Mumu adds a preexisting cultural archive plus a legal strategy intended to support consumer-facing uses.
If the trademark applications proceed successfully, the brand could have a clearer foundation for merchandise, media, licensing and partnerships. Australia’s membership in the Madrid Protocol system also creates a potential pathway for qualified applicants to seek protection in additional markets.
For Robinhood Chain, the broader implication is cultural.
The network already has financial infrastructure and a globally recognized parent brand. What it does not yet have is years of native history.
Projects that establish themselves during this period may eventually become part of that history.
Mumu is attempting to do so with an eight-year head start in internet culture.
References: IP Australia - MUMU Application 2682039 | IP Australia - MUMU THE BULL Application 2682957 search | WIPO - Madrid System filing overview | Robinhood - Robinhood Chain reveal, June 30, 2025 | Robinhood - Robinhood Chain public testnet, Feb. 10, 2026 | Robinhood - Robinhood Chain mainnet, July 1, 2026