Our take
Chorus One
Chorus One delivers robust non-custodial proof of stake validator infrastructure tailored for institutional delegates, digital asset custodians, and protocol foundations. Founded in Switzerland, the company operates enterprise-grade validator nodes across more than forty blockchain networks, emphasizing high availability, distributed node topology, and protocol research. Because all operations remain strictly non-custodial, delegators retain full custody over their private keys and withdrawal authorizations at all times.
While Chorus One maintains a commanding presence across major ecosystems including Ethereum, Solana, Cosmos, and Polkadot, retail token holders typically encounter its infrastructure indirectly through public validator delegation or integrated custody platforms. Institutional clients seeking bespoke service level agreements, dedicated whitelabel validator clusters, or advanced MEV-boost configurations will find a sophisticated technical partner, though minimum deployment commitments and native unbonding rules apply across all integrations.
CoolWallet
CoolWallet manufactured by CoolBitX offers a distinct physical approach to cryptocurrency self-custody. Built into a flexible, waterproof card no thicker than a standard credit card, the device integrates cold storage hardware directly into a mobile workflow. Rather than relying on bulky USB peripherals or battery-heavy housings, CoolWallet pairs via encrypted Bluetooth with iOS and Android devices through the CoolWallet App.
The product lineup features the entry-level CoolWallet S and the flagship CoolWallet Pro, which incorporates a CC EAL6+ certified secure element. While the wireless Bluetooth architecture prioritizes convenience on the go, it introduces operational tradeoffs compared to strictly air-gapped QR-code hardware. For everyday self-custody and mobile Web3 interactions, CoolWallet delivers balanced physical resilience and functional utility.