With the amount of new subnets being added it can be hard to get up to date information across all subnets, so data may be slightly out of date from time to time
With the amount of new subnets being added it can be hard to get up to date information across all subnets, so data may be slightly out of date from time to time
Quantum Compute (Subnet 48) is a Bittensor subnet that democratizes access to quantum computing by providing an open marketplace for quantum computations. In essence, it serves as the execution layer of qBitTensor Labs’ quantum computing platform, allowing anyone – from researchers to enterprises – to publish quantum computing tasks and have them solved in a decentralized network. Unlike its sister subnet (Quantum Innovate, SN63) which focuses on algorithmic fidelity and research simulations, Quantum Compute emphasizes delivery of results, rewarding availability, reproducibility, and service quality in quantum computation as a service.
This subnet bridges the gap between classical and quantum resources. Miners (nodes) on SN48 compete to execute submitted quantum circuits either by simulating them on classical hardware (using high-performance quantum circuit simulators) or by tapping into real quantum processors when available. By doing so, Quantum Compute creates a permissionless “quantum cloud” where users can run complex quantum algorithms without owning any quantum hardware. The project’s goal is to make quantum computing a shared, on-demand utility, rather than a privilege limited to labs or big tech.
Notably, the subnet’s innovative Quantum Rings simulation engine (developed by the team) has already demonstrated quantum capabilities. It can simulate advanced quantum circuits with such high fidelity that results were on par with those from actual quantum processors. For example, Quantum Compute recently published a breakthrough solution to the “Hidden Stabilizer Circuits” (HSTAB) challenge in collaboration with a top-performing miner on the network. Achievements like these show how Subnet 48 is pushing the frontier of quantum computing by harnessing decentralized compute power.
Quantum Compute (Subnet 48) is a Bittensor subnet that democratizes access to quantum computing by providing an open marketplace for quantum computations. In essence, it serves as the execution layer of qBitTensor Labs’ quantum computing platform, allowing anyone – from researchers to enterprises – to publish quantum computing tasks and have them solved in a decentralized network. Unlike its sister subnet (Quantum Innovate, SN63) which focuses on algorithmic fidelity and research simulations, Quantum Compute emphasizes delivery of results, rewarding availability, reproducibility, and service quality in quantum computation as a service.
This subnet bridges the gap between classical and quantum resources. Miners (nodes) on SN48 compete to execute submitted quantum circuits either by simulating them on classical hardware (using high-performance quantum circuit simulators) or by tapping into real quantum processors when available. By doing so, Quantum Compute creates a permissionless “quantum cloud” where users can run complex quantum algorithms without owning any quantum hardware. The project’s goal is to make quantum computing a shared, on-demand utility, rather than a privilege limited to labs or big tech.
Notably, the subnet’s innovative Quantum Rings simulation engine (developed by the team) has already demonstrated quantum capabilities. It can simulate advanced quantum circuits with such high fidelity that results were on par with those from actual quantum processors. For example, Quantum Compute recently published a breakthrough solution to the “Hidden Stabilizer Circuits” (HSTAB) challenge in collaboration with a top-performing miner on the network. Achievements like these show how Subnet 48 is pushing the frontier of quantum computing by harnessing decentralized compute power.
Quantum Compute’s product is an open quantum computing platform built on Bittensor, consisting of a specialized blockchain subnet and a network of incentivized participants that deliver quantum compute as a service. Technically, it is implemented as an independent Bittensor subnet (SN48) with its own consensus and tokenomics, tailored to quantum workloads. The “build” can be thought of as a stack with two layers (Subnet 63 and Subnet 48) working in tandem: Quantum Innovate (SN63) acts as the fidelity lab generating and benchmarking quantum circuits, while Quantum Compute (SN48) is the execution floor where those computations are actually run and delivered to end-users. Together, they form what the team calls the Open Quantum ecosystem, but Subnet 48 is the layer that end-users interact with to run jobs.
Key components of the Quantum Compute architecture include:
Quantum Rings Simulator: A proprietary high-performance quantum circuit simulator integrated into the subnet. Miners leverage this engine to simulate large quantum circuits using GPUs/CPUs with extremely high. This allows the network to execute circuits with hundreds of qubits and millions of gate operations on classical hardware, effectively handling tasks that are intractable for naive simulators. The Quantum Rings SDK, which achieved record-breaking accuracy on Google’s quantum supremacy benchmarks, is a core part of the build, ensuring that even without a physical quantum computer, SN48’s miners can produce reliable results.
Real QPU Integration: Quantum Compute is designed to incorporate Quantum Processing Units (QPUs) – actual quantum computers – as they become available. In fact, even before its formal launch, the team secured commercial access to real quantum machines (which often cost $5k–$15k per hour) to integrate into the subnet. This means some miners can interface with cloud-based quantum hardware (from providers like IBM, IonQ, etc.) to run circuits on real qubits. The network intelligently balances simulation vs. hardware – simpler or noise-tolerant tasks might run on simulators, while tasks requiring true quantum effects can be dispatched to a QPU. By blending simulated and real hardware execution, Quantum Compute’s marketplace can offer a spectrum of quantum services, from free simulated runs to premium real-qubit processing.
Proof-of-Quantumness & Validation: To maintain trust in a decentralized setting, SN48 implements a “proof-of-quantumness” mechanism. Validators on the subnet generate quantum circuit challenges with known properties (e.g. “peaked circuits” with known hidden bitstrings, or other verifiable quantum problems). When miners submit results, validators use statistical checks and consensus (without needing a quantum computer themselves) to verify that the result is genuine – essentially confirming that the miner did perform a valid quantum computation. This prevents miners from cheating or faking outputs. Valid outputs are signed off and recorded on-chain. (For example, a validator might embed a secret pattern in a circuit’s outcome distribution that only a correct solve – quantum or classical – would reveal, thus proving the computation was done.)
Decentralized Job Marketplace: The overall workflow resembles a decentralized AWS for quantum computing. Users publish jobs (quantum circuits or algorithmic problems) to the subnet, which acts as a marketplace. These jobs are posted as transactions containing the circuit description (e.g. in OpenQASM format). Miners then compete to claim and solve these jobs: some may run the circuit on a simulator with optimized algorithms, others might queue it on a real QPU if available. Validators verify the results, as described, and once a consensus is reached on the correct solution, it is written to the blockchain and returned to the requester. The incentive system (powered by Bittensor’s native token $TAO and subnet-specific tokens) pays out rewards to the successful miner(s) and validators proportional to their contribution. This creates a self-sustaining economy where computational work (quantum answers) is exchanged for token rewards in a trustless manner.
Service Layer and API: On top of the subnet infrastructure, the team is building user-friendly access points. An initiative called Open Quantum (with a handle @OpenQuantum_ on X) appears to be the front-end or service that will allow developers to easily submit jobs to Subnet 48’s marketplace. Through Open Quantum, a researcher could, for example, upload a quantum circuit, select desired fidelity (simulation vs. hardware), and then let the network handle it. The output and any data from the run are delivered back to the user, and all transactions are logged on-chain for transparency and auditability. This productized layer will make Quantum Compute’s power accessible via web interfaces or APIs, abstracting the crypto and blockchain complexity behind a simple quantum computing service.
In summary, the build of Quantum Compute is a decentralized quantum compute platform that marries blockchain incentives with quantum computing techniques. It incorporates custom simulation technology (Quantum Rings SDK) and hooks into real quantum computers, all orchestrated by Bittensor’s consensus and reward mechanisms. This allows the platform to offer “quantum computing as a service” in a Web3 fashion – open, trustless, and global.
Quantum Compute’s product is an open quantum computing platform built on Bittensor, consisting of a specialized blockchain subnet and a network of incentivized participants that deliver quantum compute as a service. Technically, it is implemented as an independent Bittensor subnet (SN48) with its own consensus and tokenomics, tailored to quantum workloads. The “build” can be thought of as a stack with two layers (Subnet 63 and Subnet 48) working in tandem: Quantum Innovate (SN63) acts as the fidelity lab generating and benchmarking quantum circuits, while Quantum Compute (SN48) is the execution floor where those computations are actually run and delivered to end-users. Together, they form what the team calls the Open Quantum ecosystem, but Subnet 48 is the layer that end-users interact with to run jobs.
Key components of the Quantum Compute architecture include:
Quantum Rings Simulator: A proprietary high-performance quantum circuit simulator integrated into the subnet. Miners leverage this engine to simulate large quantum circuits using GPUs/CPUs with extremely high. This allows the network to execute circuits with hundreds of qubits and millions of gate operations on classical hardware, effectively handling tasks that are intractable for naive simulators. The Quantum Rings SDK, which achieved record-breaking accuracy on Google’s quantum supremacy benchmarks, is a core part of the build, ensuring that even without a physical quantum computer, SN48’s miners can produce reliable results.
Real QPU Integration: Quantum Compute is designed to incorporate Quantum Processing Units (QPUs) – actual quantum computers – as they become available. In fact, even before its formal launch, the team secured commercial access to real quantum machines (which often cost $5k–$15k per hour) to integrate into the subnet. This means some miners can interface with cloud-based quantum hardware (from providers like IBM, IonQ, etc.) to run circuits on real qubits. The network intelligently balances simulation vs. hardware – simpler or noise-tolerant tasks might run on simulators, while tasks requiring true quantum effects can be dispatched to a QPU. By blending simulated and real hardware execution, Quantum Compute’s marketplace can offer a spectrum of quantum services, from free simulated runs to premium real-qubit processing.
Proof-of-Quantumness & Validation: To maintain trust in a decentralized setting, SN48 implements a “proof-of-quantumness” mechanism. Validators on the subnet generate quantum circuit challenges with known properties (e.g. “peaked circuits” with known hidden bitstrings, or other verifiable quantum problems). When miners submit results, validators use statistical checks and consensus (without needing a quantum computer themselves) to verify that the result is genuine – essentially confirming that the miner did perform a valid quantum computation. This prevents miners from cheating or faking outputs. Valid outputs are signed off and recorded on-chain. (For example, a validator might embed a secret pattern in a circuit’s outcome distribution that only a correct solve – quantum or classical – would reveal, thus proving the computation was done.)
Decentralized Job Marketplace: The overall workflow resembles a decentralized AWS for quantum computing. Users publish jobs (quantum circuits or algorithmic problems) to the subnet, which acts as a marketplace. These jobs are posted as transactions containing the circuit description (e.g. in OpenQASM format). Miners then compete to claim and solve these jobs: some may run the circuit on a simulator with optimized algorithms, others might queue it on a real QPU if available. Validators verify the results, as described, and once a consensus is reached on the correct solution, it is written to the blockchain and returned to the requester. The incentive system (powered by Bittensor’s native token $TAO and subnet-specific tokens) pays out rewards to the successful miner(s) and validators proportional to their contribution. This creates a self-sustaining economy where computational work (quantum answers) is exchanged for token rewards in a trustless manner.
Service Layer and API: On top of the subnet infrastructure, the team is building user-friendly access points. An initiative called Open Quantum (with a handle @OpenQuantum_ on X) appears to be the front-end or service that will allow developers to easily submit jobs to Subnet 48’s marketplace. Through Open Quantum, a researcher could, for example, upload a quantum circuit, select desired fidelity (simulation vs. hardware), and then let the network handle it. The output and any data from the run are delivered back to the user, and all transactions are logged on-chain for transparency and auditability. This productized layer will make Quantum Compute’s power accessible via web interfaces or APIs, abstracting the crypto and blockchain complexity behind a simple quantum computing service.
In summary, the build of Quantum Compute is a decentralized quantum compute platform that marries blockchain incentives with quantum computing techniques. It incorporates custom simulation technology (Quantum Rings SDK) and hooks into real quantum computers, all orchestrated by Bittensor’s consensus and reward mechanisms. This allows the platform to offer “quantum computing as a service” in a Web3 fashion – open, trustless, and global.
qBitTensor Labs is the team behind Subnet 48 (Quantum Compute). It is led by Quantum Rings, Inc., a Colorado-based quantum computing startup that provides the core technology and expertise for these subnets. The company focuses on quantum software and simulation tools, and its involvement in Bittensor is what enabled the creation of the first quantum-powered subnets on the network. Key team information includes:
Founder/CEO – Bob Wold: The project is spearheaded by Bob Wold, co-founder and CEO of Quantum Rings. Bob is a seasoned technology leader with a 25-year career in emerging tech. He previously served as VP of Technology Innovation at Trimble (a Fortune 500 tech company) and has a background in taking cutting-edge tech from R&D to real-world products. In 2022, he co-founded Quantum Rings to bridge the gap between lab research and practical quantum computing solutions. Under his leadership, qBitTensor Labs has integrated Quantum Rings’ advanced simulator into Bittensor and forged partnerships to access real quantum hardware.
Core Team and Advisors: Alongside Bob Wold, the team likely includes quantum algorithm engineers and blockchain developers (though many are not publicly named). Evidence from community discussions suggests a team based in Boulder, CO, operating out of the Colorado Quantum Incubator (COQI) – an initiative supporting quantum startups. Quantum Rings was the inaugural tenant of COQI, highlighting the team’s strong ties to the academic and quantum tech community in Colorado. The company has been through programs like the Duality Quantum Accelerator and is connected with organizations such as the Chicago Quantum Exchange and Quantum Economic Development Consortium (QED-C), indicating that the team is well-networked in the quantum industry.
Collaboration with OpenTensor/Bittensor: On the blockchain side, qBitTensor Labs works closely with the OpenTensor Foundation (the core team behind Bittensor). The Quantum subnets were launched with support from OpenTensor’s infrastructure and community. The qBitTensor team actively participates in Bittensor’s developer calls (e.g. Novelty Search sessions) and works with Bittensor core devs to refine the consensus and validation mechanisms needed for quantum tasks. This tight collaboration ensures that the project benefits from blockchain expertise while the OpenTensor community gains quantum computing capabilities.
Community and Socials: The team maintains an active presence on X (Twitter) via @qBitTensorLabs, where they post updates on technical milestones and challenges. They also interact under the “Open Quantum” banner (@OpenQuantum_), signaling an effort to build a broader community around decentralized quantum computing. qBitTensor Labs has also set up a Discord server for developers (sometimes referred to as the qBitty community) where miners and researchers collaborate on solving the quantum tasks. The open, community-driven approach is a hallmark of the team’s philosophy – echoing how open-source projects in AI are run, but now applied to quantum computing.
In summary, Quantum is backed by a hybrid team of quantum computing experts and blockchain engineers, with Bob Wold (Quantum Rings’ CEO) at the helm. The team’s base in Boulder’s quantum startup scene and their participation in blockchain forums position them uniquely at the intersection of quantum tech and Web3.
qBitTensor Labs is the team behind Subnet 48 (Quantum Compute). It is led by Quantum Rings, Inc., a Colorado-based quantum computing startup that provides the core technology and expertise for these subnets. The company focuses on quantum software and simulation tools, and its involvement in Bittensor is what enabled the creation of the first quantum-powered subnets on the network. Key team information includes:
Founder/CEO – Bob Wold: The project is spearheaded by Bob Wold, co-founder and CEO of Quantum Rings. Bob is a seasoned technology leader with a 25-year career in emerging tech. He previously served as VP of Technology Innovation at Trimble (a Fortune 500 tech company) and has a background in taking cutting-edge tech from R&D to real-world products. In 2022, he co-founded Quantum Rings to bridge the gap between lab research and practical quantum computing solutions. Under his leadership, qBitTensor Labs has integrated Quantum Rings’ advanced simulator into Bittensor and forged partnerships to access real quantum hardware.
Core Team and Advisors: Alongside Bob Wold, the team likely includes quantum algorithm engineers and blockchain developers (though many are not publicly named). Evidence from community discussions suggests a team based in Boulder, CO, operating out of the Colorado Quantum Incubator (COQI) – an initiative supporting quantum startups. Quantum Rings was the inaugural tenant of COQI, highlighting the team’s strong ties to the academic and quantum tech community in Colorado. The company has been through programs like the Duality Quantum Accelerator and is connected with organizations such as the Chicago Quantum Exchange and Quantum Economic Development Consortium (QED-C), indicating that the team is well-networked in the quantum industry.
Collaboration with OpenTensor/Bittensor: On the blockchain side, qBitTensor Labs works closely with the OpenTensor Foundation (the core team behind Bittensor). The Quantum subnets were launched with support from OpenTensor’s infrastructure and community. The qBitTensor team actively participates in Bittensor’s developer calls (e.g. Novelty Search sessions) and works with Bittensor core devs to refine the consensus and validation mechanisms needed for quantum tasks. This tight collaboration ensures that the project benefits from blockchain expertise while the OpenTensor community gains quantum computing capabilities.
Community and Socials: The team maintains an active presence on X (Twitter) via @qBitTensorLabs, where they post updates on technical milestones and challenges. They also interact under the “Open Quantum” banner (@OpenQuantum_), signaling an effort to build a broader community around decentralized quantum computing. qBitTensor Labs has also set up a Discord server for developers (sometimes referred to as the qBitty community) where miners and researchers collaborate on solving the quantum tasks. The open, community-driven approach is a hallmark of the team’s philosophy – echoing how open-source projects in AI are run, but now applied to quantum computing.
In summary, Quantum is backed by a hybrid team of quantum computing experts and blockchain engineers, with Bob Wold (Quantum Rings’ CEO) at the helm. The team’s base in Boulder’s quantum startup scene and their participation in blockchain forums position them uniquely at the intersection of quantum tech and Web3.
The development roadmap for Quantum Compute (Subnet 48) is ambitious, aiming to evolve the subnet from its current experimental stage into a full-fledged decentralized quantum computing platform. The strategic roadmap can be outlined in progressive phases, each expanding the network’s capabilities:
Phase 1 – Verifiable Quantum Challenges: Establish a baseline of quantum capability on the network. In this initial phase, the focus is on Peaked Circuits and other verifiable tasks. These are specially crafted quantum circuits (e.g. peaked circuits, hidden stabilizer circuits) where the correct solution can be verified by the network. Over the past months, Subnet 48 (in tandem with SN63) launched incentivized competitions for miners to solve these challenges. The rapid solving of the first peaked-circuit puzzle and the HSTAB challenge confirmed the concept. Phase 1 builds the core infrastructure (simulation engine, validation mechanism) and proves that a decentralized network can indeed perform non-trivial quantum computations correctly. Status: Completed/Ongoing – As of 2025, miners have solved 100+ quantum circuits in this phase, refining the subnet’s performance and reliability.
Phase 2 – Diversifying Circuit Types & Scaling Complexity: Broaden the scope of quantum problems tackled. With the basic framework in place, the next step is to expand to a wider array of quantum algorithms and circuit types. This means introducing new challenges beyond peaked circuits – for example, simulations of algorithms like Shor’s algorithm (quantum factorization), quantum approximate optimization (QAOA), quantum machine learning benchmarks, etc. The goal is to push the network’s limits in depth and qubit count, ensuring miners develop techniques to handle larger and more complex circuits. Additionally, optimization and tooling will be improved (e.g., custom mining software, better resource management) so that the subnet can handle these heavier workloads efficiently. Status: Underway – The team has already trialed circuits like Shor’s algorithm on SN63 for simulation fidelity, and these more complex tasks will be gradually migrated to the open marketplace of SN48 as miners demonstrate proficiency.
Phase 3 – Real-World Applications & Hybrid Quantum-Classical Workloads: Transition from theoretical benchmarks to practical problem-solving. In this phase, Quantum Compute will focus on applying its capabilities to real-world problems across various domains. Potential target areas include: Quantum Cryptography (e.g., testing quantum-resistant algorithms or quantum key distribution simulations), Quantum Finance (portfolio optimization using quantum algorithms, Monte Carlo simulations accelerated by quantum subroutines), Quantum Chemistry/Materials Science (simulating molecular structures, reaction dynamics using quantum circuits), and more. The idea is to allow external partners (startups, research labs, even enterprises) to pose domain-specific problems to the network. For instance, a pharma company might submit a molecular simulation circuit to explore drug interactions – SN48 miners would compete to provide the result faster or more accurately than classical methods. During this phase, we’ll likely see hybrid workloads: parts of a computation handled by classical AI models on Bittensor, with key components handled by quantum circuits on SN48. The network’s incentive structure will be tuned to ensure these application-level jobs are prioritized and accurately solved. Status: Planned – There are indications of early partnerships (e.g., with research institutions via Open Quantum) to pilot such use-cases, but full marketplace support for arbitrary user-defined jobs will come as the subnet matures.
Phase 4 – Fully Decentralized Quantum Marketplace: Open Quantum Compute to the world at large. The ultimate vision is a comprehensive decentralized quantum platform where any user can submit their own quantum programs, and a global network of miners will execute them. In this end-state, Quantum Compute functions like a “quantum AWS” on blockchain – a trustless marketplace for quantum compute power. External developers will interact through simple interfaces (as mentioned, via Open Quantum’s portal or APIs), and the system will automatically route jobs to either simulators or actual QPUs based on availability and required fidelity. By this phase, the integration of real QPUs should be robust – the network might include dedicated miners running on quantum cloud services or even future physical quantum computers plugged into the network. The cost of quantum hardware runtime could be tokenized (e.g. covered by job submitter via TAO payments, or subsidized by subnet incentives to encourage usage). Decentralization will also mean governance: the community of $TAO and subnet token holders could vote on protocol upgrades, new features, or resource allocation (for example, which quantum cloud provider to integrate next). Essentially, Phase 4 turns Quantum Compute into an open quantum computing cloud that is owned and operated by its users and miners, not by any single company or authority. Status: Vision – Achieving this will depend on both the progression of quantum hardware (for broader access) and the growth of the Bittensor ecosystem. The roadmap envisions reaching this stage as quantum tech matures over the coming years.
Throughout these phases, the underlying theme is scaling both the technical capability (more qubits, more algorithms, real hardware) and the community (more miners, users, and use-cases) of Quantum Compute. The roadmap is deliberately aligned with quantum computing’s evolution: start with today’s simulators and small circuits, progress toward the moment when quantum advantage becomes practical, and be ready as an early decentralized marketplace for that quantum power. By following this roadmap, Subnet 48 aims to become the backbone of a future where quantum computing and blockchain coalesce, enabling anyone in the world to leverage quantum breakthroughs in a permissionless way.
The development roadmap for Quantum Compute (Subnet 48) is ambitious, aiming to evolve the subnet from its current experimental stage into a full-fledged decentralized quantum computing platform. The strategic roadmap can be outlined in progressive phases, each expanding the network’s capabilities:
Phase 1 – Verifiable Quantum Challenges: Establish a baseline of quantum capability on the network. In this initial phase, the focus is on Peaked Circuits and other verifiable tasks. These are specially crafted quantum circuits (e.g. peaked circuits, hidden stabilizer circuits) where the correct solution can be verified by the network. Over the past months, Subnet 48 (in tandem with SN63) launched incentivized competitions for miners to solve these challenges. The rapid solving of the first peaked-circuit puzzle and the HSTAB challenge confirmed the concept. Phase 1 builds the core infrastructure (simulation engine, validation mechanism) and proves that a decentralized network can indeed perform non-trivial quantum computations correctly. Status: Completed/Ongoing – As of 2025, miners have solved 100+ quantum circuits in this phase, refining the subnet’s performance and reliability.
Phase 2 – Diversifying Circuit Types & Scaling Complexity: Broaden the scope of quantum problems tackled. With the basic framework in place, the next step is to expand to a wider array of quantum algorithms and circuit types. This means introducing new challenges beyond peaked circuits – for example, simulations of algorithms like Shor’s algorithm (quantum factorization), quantum approximate optimization (QAOA), quantum machine learning benchmarks, etc. The goal is to push the network’s limits in depth and qubit count, ensuring miners develop techniques to handle larger and more complex circuits. Additionally, optimization and tooling will be improved (e.g., custom mining software, better resource management) so that the subnet can handle these heavier workloads efficiently. Status: Underway – The team has already trialed circuits like Shor’s algorithm on SN63 for simulation fidelity, and these more complex tasks will be gradually migrated to the open marketplace of SN48 as miners demonstrate proficiency.
Phase 3 – Real-World Applications & Hybrid Quantum-Classical Workloads: Transition from theoretical benchmarks to practical problem-solving. In this phase, Quantum Compute will focus on applying its capabilities to real-world problems across various domains. Potential target areas include: Quantum Cryptography (e.g., testing quantum-resistant algorithms or quantum key distribution simulations), Quantum Finance (portfolio optimization using quantum algorithms, Monte Carlo simulations accelerated by quantum subroutines), Quantum Chemistry/Materials Science (simulating molecular structures, reaction dynamics using quantum circuits), and more. The idea is to allow external partners (startups, research labs, even enterprises) to pose domain-specific problems to the network. For instance, a pharma company might submit a molecular simulation circuit to explore drug interactions – SN48 miners would compete to provide the result faster or more accurately than classical methods. During this phase, we’ll likely see hybrid workloads: parts of a computation handled by classical AI models on Bittensor, with key components handled by quantum circuits on SN48. The network’s incentive structure will be tuned to ensure these application-level jobs are prioritized and accurately solved. Status: Planned – There are indications of early partnerships (e.g., with research institutions via Open Quantum) to pilot such use-cases, but full marketplace support for arbitrary user-defined jobs will come as the subnet matures.
Phase 4 – Fully Decentralized Quantum Marketplace: Open Quantum Compute to the world at large. The ultimate vision is a comprehensive decentralized quantum platform where any user can submit their own quantum programs, and a global network of miners will execute them. In this end-state, Quantum Compute functions like a “quantum AWS” on blockchain – a trustless marketplace for quantum compute power. External developers will interact through simple interfaces (as mentioned, via Open Quantum’s portal or APIs), and the system will automatically route jobs to either simulators or actual QPUs based on availability and required fidelity. By this phase, the integration of real QPUs should be robust – the network might include dedicated miners running on quantum cloud services or even future physical quantum computers plugged into the network. The cost of quantum hardware runtime could be tokenized (e.g. covered by job submitter via TAO payments, or subsidized by subnet incentives to encourage usage). Decentralization will also mean governance: the community of $TAO and subnet token holders could vote on protocol upgrades, new features, or resource allocation (for example, which quantum cloud provider to integrate next). Essentially, Phase 4 turns Quantum Compute into an open quantum computing cloud that is owned and operated by its users and miners, not by any single company or authority. Status: Vision – Achieving this will depend on both the progression of quantum hardware (for broader access) and the growth of the Bittensor ecosystem. The roadmap envisions reaching this stage as quantum tech matures over the coming years.
Throughout these phases, the underlying theme is scaling both the technical capability (more qubits, more algorithms, real hardware) and the community (more miners, users, and use-cases) of Quantum Compute. The roadmap is deliberately aligned with quantum computing’s evolution: start with today’s simulators and small circuits, progress toward the moment when quantum advantage becomes practical, and be ready as an early decentralized marketplace for that quantum power. By following this roadmap, Subnet 48 aims to become the backbone of a future where quantum computing and blockchain coalesce, enabling anyone in the world to leverage quantum breakthroughs in a permissionless way.