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Octra, an FHE blockchain, rolled out its mainnet alpha in Dec 2025 after a 2025 testnet, marking a key step for encrypted compute on crypto networks.
Octra’s mainnet alpha went live in December 2025, moving the project from testnet to a production‑grade environment and positioning it as one of the first fully homomorphic encryption (FHE) blockchains ready for real‑world applications【1】.
| At a glance | |
|---|---|
| Network stage | Mainnet alpha launch (Dec 2025) |
| Testnet | Public testnet launched Jun 2025 |
| Prototype | Internal prototype released Oct 2023 |
| Core tech | Hypergraph Fully Homomorphic Encryption (HFHE) |
Octra was founded in 2021 and entered active development late 2022. An internal prototype was released in October 2023, followed by a public testnet in June 2025 that allowed developers to experiment with encrypted compute on a live network【1】. The December 2025 mainnet alpha introduces “circles,” isolated execution environments that host programs written in AppliedML, Rust, C++, OCaml or WASM, and enables encrypted data processing via the HFHE scheme【1】.
Octra combines three layers: a blockchain ledger, the HFHE‑based compute layer, and circles that store encrypted data and run arbitrary logic. Data is transformed into vectors, encrypted, and processed with R1CS proof generation, while node roles (bootstrap, standard, light) handle storage and validation【1】. The Octra Virtual Machine (OVM) supports AppliedML natively and extends to other languages through WASM, with an integrated IDE for developers【1】. The codebase, primarily in OCaml and C++, is being progressively open‑sourced via official GitHub repositories【1】.
Octra’s transition to mainnet alpha demonstrates tangible progress for encrypted compute on blockchain, but its real impact will depend on developer uptake and how the broader crypto community integrates FHE capabilities.
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Octra was founded in 2021, with an internal prototype released in October 2023, a public testnet launched in June 2025, and a mainnet alpha launched in December 2025.
HFHE is Octra’s proprietary fully homomorphic encryption scheme that allows the network to compute on encrypted data without decrypting it, enabling privacy‑preserving smart contracts and data processing.
Applications can be built in AppliedML (the native language), as well as Rust, C++, OCaml, or WebAssembly (WASM).
Circles are isolated execution environments that host programs and encrypted data storage, ensuring that code and data remain confidential during processing.
The OCT token powers the network by facilitating transactions, paying for computational resources, and rewarding validators, and is characterized as a non‑security token.