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Harmony ONE validator — live & elected

Professional
validator infrastructure.
Optimized yields.

Always Connected. Optimized Yields.

9+
Networks operated
Operator active since 2019
99.9%
Target uptime
No slashing events
6+
Incentivized testnets
Tour de SOL · Game of Stakes
2
Consensus models
PoH · FBFT sharding
Networks

Networks we've operated

Mainnet and testnet operator experience across multiple consensus architectures, from high-throughput single-chain networks to sharded and modular ones.

Harmony ONE
● Live
Mainnet validator · Currently elected
FBFT sharding · No slashing events
Solana
Alumni
Mainnet validator · Retired
Tour de SOL graduate · PoH consensus
Cosmos
Testnet
Game of Stakes · Adversarial testnet
Tendermint BFT · Protocol-level experience
Axelar
Testnet
Incentivized testnet
Cross-chain messaging · IBC-aware
Celestia
Testnet
Incentivized testnet
Modular DA layer · Early operator
+ 4 networks
Testnet
Agoric · Akash · Elrond · StaFi
Cosmos SDK · Liquid staking · Sharding
Why PPBCN

What we bring to a validator set

Built over years of adversarial testnets, mainnet operations, and protocol-level consensus work, with continuous validator activity since 2019.

Protocol-depth expertise

Validators run across architecturally distinct consensus models — Tendermint BFT, FBFT sharding, Proof-of-History — including protocol-level participation in adversarial testnets.

PoH · FBFT · Tendermint BFT · SPoS

Uptime you can verify

Zero slashing events across all mainnet operations. Validator addresses are linked on this page so anyone can independently check uptime, vote history, and slashing record on-chain.

No slashing · On-chain verifiable · 24/7 monitoring

Yield optimisation

Commission rates, delegation strategy, and uptime compound into staker returns. Each is published openly, with rates set to favour delegators rather than operator margin.

Competitive commission · Transparent fees · Compounding rewards
Services

Services for stakers and projects

Two main paths to work with PPBCN: as a staker looking for yield, or as a project evaluating validators. Multi-chain and liquid-staking support are available alongside both.

For projects

Validator Partnership

Launching a new network or testnet? PPBCN brings mainnet operator experience to your validator set, with continuous activity in the ecosystem since the incentivized testnet era.

Testnet onboarding Mainnet validation Governance participation Technical feedback
Partner inquiry →
Multi-chain

Cross-chain Expertise

The operator has run validators across Cosmos SDK, Solana, and custom consensus implementations, with familiarity for IBC, modular DA layers, and sharded chains.

Cosmos SDK IBC aware Modular chains Sharding
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Infrastructure

Liquid Staking Support

Early experience with StaFi and other liquid-staking protocols translates into LST-compatible validator setups, with familiarity for the underlying delegation accounting.

LST compatible Protocol-aware Yield optimised
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Yield calculator

Estimated returns

Estimates are based on current network APY and are indicative only. Actual returns depend on network conditions, delegation size, and epoch rewards.

Estimated APY
11.5%
Current Harmony ONE rate
Monthly return ~79 ONE
Annual return ~950 ONE
Total after period ~10,950 ONE
Start staking →
* Estimates do not account for token price fluctuation. Commission rate assumed at current PPBCN rate. Not financial advice.
Track Record

An operator track record

The PPBCN operator has been running validators since 2019, with on-chain history across mainnets and incentivized testnets shown below.

Mainnet operations
Harmony ONE — Mainnet 2020 — Present
Active mainnet validator · Currently elected
Live and elected validator on Harmony ONE. Sharded FBFT consensus. Continuous operation since mainnet launch. Zero slashing events.
Live Elected FBFT Sharding No slashing
ON-CHAIN one15hs9d9kdnsd5jxjmu507wljcmmdfe390akxe3d Staking Dashboard ↗
Solana — Mainnet 2021 — 2025
Mainnet validator · Retired
Operated a mainnet validator following Tour de SOL graduation. Active across multiple epochs over four years. Retired in 2025 following a strategic reallocation toward multi-chain opportunities.
Mainnet PoH consensus Retired
ON-CHAIN 9MDcVy7CjbNuxUvSzeUFbppSP1XWzXGTPo1PiC4CqtGM Solscan ↗
Incentivized testnet history
Solana — Tour de SOL 2019 — 2020
Competitive incentivized testnet · Multi-stage
Multi-stage competitive validator program testing uptime, performance, and attack resilience. One of the most demanding validator programs ever run.
Tour de SOL Competitive
Cosmos — Game of Stakes 2018 — 2019
Adversarial incentivized testnet
Cosmos's adversarial testnet where validators competed to cause and survive network attacks. Protocol-level Tendermint BFT experience under real adversarial conditions.
Game of Stakes Adversarial Tendermint BFT
Harmony · Axelar · Celestia 2019 — 2022
Incentivized testnets · Multiple networks
Testnet validator across sharding (Harmony), cross-chain messaging (Axelar), and modular data availability (Celestia). Plus Agoric, Akash, Elrond, and StaFi.
Sharding Cross-chain Modular DA Liquid staking
Operator

Pseudonymous, on-chain verifiable

PPBCN operates as a pseudonymous entity. Validator addresses are linked directly from this page, so credibility can be checked on-chain rather than taken on trust.

PPBCN Operator
Professional validator · Pseudonymous · On-chain verifiable
Harmony ONE — live Solana alumni Tour de SOL graduate Game of Stakes 9+ networks Since 2019
PPBCN is the professional vehicle for an operator who has been in the validator ecosystem since 2019. The brand is recent; the operator's track record is not. Validator addresses linked on this page let any reader verify the history directly on-chain.
On pseudonymity: Operating anonymously is a deliberate security choice. The on-chain history is fully public: the Harmony ONE validator address and Solana vote account are linked directly from this page, so any reader can verify uptime, epoch participation, and slashing record without knowing the operator's legal identity.
Infrastructure

Production infrastructure

Validator infrastructure built for uptime: dedicated hardware, redundant signing paths, continuous monitoring, and slashing-protection-first key management.

Dedicated hardware

Bare metal servers, not shared VPS instances. Validator signing keys never leave dedicated hardware security modules.

Bare metal · HSM key storage

Redundant setup

Primary and backup node infrastructure with automatic failover. No single point of failure in the signing path.

Active standby · Auto-failover

24/7 monitoring

Automated alerting on block production, missed votes, and network health. Human response on critical alerts regardless of time zone.

Real-time alerts · On-call ops

Slashing protection

Double-sign protection enabled. Key management practices designed around slashing prevention first, with operational efficiency second.

Double-sign protection · 0 events

Low-latency peering

Network configuration optimised for validator peer connectivity and block propagation speed. Location selected for proximity to network core nodes.

Optimised peering · Low latency

Transparent operations

Commission rates, validator addresses, and performance data are publicly accessible. No hidden fees, no surprise changes without advance notice.

On-chain verifiable · Public data
Get started

Get in touch

Start staking with PPBCN

Whether you're a staker looking for yield or a project evaluating validator partners, send a message and we'll respond within 48 hours.

Response within 48h
All inquiries answered personally
Validator addresses on request
On-chain proof provided to any staker or partner

No spam, no third parties, inquiries go directly to the PPBCN operator.