Technology › Consensus
Proof of Autheo
A hybrid consensus model combining licensed validator eligibility with stake-weighted block production. Built on Cosmos SDK and CometBFT, a Byzantine fault-tolerant (BFT) engine that provides single-block finality in 1 to 3 seconds.
What is Proof of Autheo?
Autheo runs on Proof of Autheo, a hybrid consensus model combining licensed validator eligibility with stake-weighted block production. To participate as a validator, operators must hold an Autheo NFT License and meet the required staking or bonding threshold.
Once both requirements are met, the active validator set operates using a standard Proof-of-Stake model, where validators earn rewards and produce blocks in proportion to their stake. The underlying framework is built on Cosmos SDK and CometBFT, providing Byzantine fault-tolerant finality and proven production-grade security across more than 200 live chains.
The Dual Gate Model
Every validator must pass two independent gates before participating in consensus. Both are required — neither alone is sufficient.
Gate 1 — Eligibility
NFT License
Validators must hold a valid Autheo NFT License to join the active set. This gate mirrors Proof-of-Authority permissioning, ensuring every operator is vetted, identifiable, and accountable before they can produce or finalize a block. No license, no entry.
Gate 2 — Commitment
Staking & Bonding
Validators must also meet the required staking or bonding threshold. Economic skin in the game ensures validators have a financial incentive to behave honestly. Slashing mechanisms apply to misbehavior, making attacks costly. On comparable Cosmos SDK chains, the slashing rate is below 0.002% of all blocks.
The result
Once both gates are satisfied, the active validator set operates on a stake-weighted Proof-of-Stake model. Block production and rewards are proportional to stake, not identity alone. This combines the accountability of PoA with the economic alignment of PoS.
Under the Hood
Proof of Autheo is implemented on top of proven, battle-tested infrastructure used by more than 200 production blockchains worldwide.
Cosmos SDK
The Cosmos SDK provides the modular application framework that powers Autheo's chain logic, staking module, governance structures, and IBC interoperability. With over 6,800 GitHub stars and more than 200 production chains since 2019, it is one of the most widely audited blockchain frameworks in existence. Source: cosmos/cosmos-sdk on GitHub.
CometBFT
CometBFT (the actively maintained fork of Tendermint Core BFT) handles consensus management: proposing blocks, collecting validator votes, and finalizing state. It provides Byzantine fault tolerance up to one-third of validators behaving maliciously, with finality in 1 to 3 seconds compared to 12 to 15 minutes on Bitcoin proof-of-work. Peer-reviewed research published at SRDS 2021 confirmed: there are numerous public cryptocurrency networks in production using Tendermint, and more than 200 projects using Cosmos and Tendermint.
Autheo's NFT License gate and staking requirements are layered on top of CometBFT's validator set management. They determine who is eligible to enter the validator set, while CometBFT handles how consensus is reached once the set is established.
Sources: Cosmos SDK GitHub (github.com/cosmos/cosmos-sdk); CometBFT documentation (docs.cometbft.com); Buchman et al., SRDS 2021; Dwellir blockchain finality benchmarks, 2026.
Why This Design?
Every architectural decision in Proof of Autheo was made to balance security, economic alignment, and validator scarcity.
Identity-Level Security
The NFT License gate means every validator is known and accountable before they join. A 2020 NDSS study found that pure Proof-of-Authority networks are vulnerable to single-node double-spend attacks precisely because there is no economic penalty layer. Proof of Autheo closes that gap with mandatory staking.
Economic Alignment
The staking gate ensures validators have real financial exposure. Honest participation is rewarded; misbehavior is penalized via slashing. Incentives are aligned with network health.
Structural Scarcity
399 validator positions are available, no more. The combination of NFT License requirements and staking thresholds creates a genuinely scarce, high-integrity validator set that is difficult to replicate at scale.
Ready to Run a Validator?
Proof of Autheo validators earn emissions over a 7-year schedule proportional to their stake tier. Three tiers — Core, Prime, and Sovereign — accommodate different levels of commitment.