En bref : Qu’est-ce que Stratum V2?
Stratum V2 is the next-generation minage Bitcoin Protocole that replaces the decade-old Stratum V1. It encrypts all miner-Pool communication, reduces Bande passante by up to 70%, and introduces job negotiation — letting miners choose which transactions go into their modèles de bloc instead of blindly accepting whatever the Pool dictates.
Qu’est-ce que Stratum V2?
Every Bitcoin miner in the world communicates with its Pool de minage through a Protocole called Stratum. The original Stratum Protocole (now called V1) was created by Marek “Slush” Palatinus in 2012 as a quick, practical solution for Pooled mining. It worked. It worked so well that for over a decade, virtually the entire Bitcoin network ran on it — unencrypted JSON messages flying between miners and Pools in plaintext, with Pools holding absolute authority over what goes into every block.
Stratum V2 is the complete rewrite. Developed by Braiins (the company behind the original Slush Pool) and now maintained as an open-source project by the Stratum V2 Reference Implementation (SRI) working group, it addresses every significant limitation of V1: no Chiffrement, no miner-side transaction selection, Bande passante waste, and vulnerability to man-in-the-middle attacks.
If Stratum V1 was a miner obediently executing orders from a central command, Stratum V2 is a miner that encrypts its communication channel, verifies the identity of the Pool, and — if it chooses — Inconvénientstructs its own work orders. It is the Protocole upgrade that brings minage Bitcoin closer to what Satoshi described in the whitepaper: individual nodes independently validating and Inconvénientstructing blocks.
For mineurs domestiques, this is not abstract. It means your ISP cannot see that you are mining Bitcoin. It means a hostile actor on your network cannot redirect your hashrate to a different Pool. And it means you can run a Bitcoin full node and actually use it to decide which transactions your miner includes in modèles de bloc — exercising genuine sovereignty over your contribution to the Bitcoin network.
Stratum V1 vs. Stratum V2: Full Technical Comparaison
The differences between V1 and V2 are not incremental tweaks. They are fundamental architectural changes.
| Caractéristique | Stratum V1 | Stratum V2 |
|---|---|---|
| Data Format | JSON (text-based) | Binary (compact) |
| Chiffrement | None — plaintext | AEAD Chiffrement (end-to-end) |
| Authentication | None | Public key-based certificate authority |
| Man-in-the-Middle Protection | Vulnerable | Protected (verified endpoints) |
| Bande passante Usage | High (verbose JSON) | ~60-70% reduction |
| modèle de bloc Source | Pool only | Pool or miner (job negotiation) |
| Job Negotiation | Not supported | Supported (optional) |
| Block Propagation Latence | ~325 ms (Moyenne) | ~1.4 ms |
| Empty Block Mining | Common (due to template delay) | Virtually eliminated |
| Forward Secrecy | No | Yes |
| Connection Multiplexing | One connection per device | Multiple logical channels per connection |
| Proxy Support | Basic | Native translation proxy (V1 devices connect through V2 proxy) |
The headline numbers are dramatic. Block-switching Latence drops from 325 milliseconds to 1.42 milliseconds — a 229x improvement. This alone saves approximately 4.9 hours of wasted puissance de hashage per year for the Moyenne opération de minage. When you are competing for récompense de blocs worth $300,000+, those recovered hashes translate directly to revenue. Braiins estimates the combined efficiency gains can boost net mining profits by up to 7.4%.
Pourquoi Stratum V2 Matters for Decentralization
This is the section that matters most. Everything else — the Chiffrement, the Bande passante savings, the speed improvements — is engineering polish. Job negotiation is the revolution.
Job Negotiation: Miners Choose Transactions
Under Stratum V1, the Pool Inconvénientstructs the modèle de bloc. The Pool decides which transactions to include, in what order, and which to exclude. The miner receives this template and blindly hashes against it. The miner has zero say in the content of the block it is working to produce.
This means that in early 2026, a handful of Pool operators — Foundry USA, AntPool, F2Pool, SpiderPool — decide the contents of roughly 70% of all Bitcoin blocks. If these operators wanted to censor a specific transaction, exclude a specific address, or implement an OFAC sanctions filter on block Inconvénientstruction, the miners pointing hashrate at these Pools would have no recourse. They would be unknowing accomplices to censorship.
Stratum V2’s job negotiation sub-Protocole changes this entirely. A miner running a Bitcoin full node can Inconvénientstruct its own modèle de bloc — selecting transactions from its own memPool based on its own criteria — and propose that template to the Pool. The Pool verifies that the template is valid and that the miner’s work will be correctly attributed, then allows the miner to hash against its own template.
The implication is profound: even if you mine on a large, centralized Pool for Paiement Inconvénientsistency, you can still exercise sovereign control over the blocks you help produce. The Pool gets your hashrate for revenue sharing. You keep your transaction selection sovereignty.
Encrypted Connections: ISPs Cannot Spy or Censor
Stratum V1 sends all data — Pool URLs, wallet addresses, hashrate data, job assignments — in unencrypted plaintext. Anyone on the network path between your miner and the Pool can see exactly what you are doing. An ISP can identify mining traffic. A state actor can monitor which Pool you use. A man-in-the-middle attacker can redirect your hashrate to their own Pool without you knowing.
Stratum V2 implements AEAD (Authenticated Chiffrement with Associated Data) on all communications. This is the same class of Chiffrement used in TLS 1.3 and Signal Protocole. Your ISP sees encrypted traffic. A network attacker cannot forge Pool messages. Your opération de minage becomes private.
For miners in jurisdictions where minage Bitcoin faces regulatory scrutiny or outright hostility, encrypted connections are not a nice-to-have. They are a security necessity. Even in Canada, where mining is legal and welcome, encrypting your traffic is basic operational hygiene — the same reason you use HTTPS instead of HTTP.
Reduced Pool Power Over Block Inconvénientstruction
The concentration of block Inconvénientstruction power in a few Pool operators is one of Bitcoin’s most underappreciated systemic Risques. When Foundry USA Inconvénientstructs 32% of all blocks, they are making decisions for 32% of Bitcoin’s transaction processing — decisions about Frais markets, transaction inclusion, and block composition that should, ideally, be distributed across thousands of independent operators.
Stratum V2 does not eliminate Pools. Miners still need Pools for Variance smoothing (Inconvénientsistent Paiements). What V2 does is decouple the economic function of Pools (aggregating hashrate and distributing Récompenses) from the censorship-sensitive function (deciding block contents). Pools handle Paiements. Miners handle block Inconvénientstruction. Each party does what it should.
This is Comment Pool de minage selection intersects with Protocole choice. A miner using Stratum V2 with job negotiation on a large Pool gets the best of both worlds: Inconvénientsistent Paiements from a large Pool’s block-finding frequency, and sovereign transaction selection from their own full node.
Current Stratum V2 Adoption
As of Q1 2026, Stratum V2 adoption is acceleNote but far from universal.
Pool Support
| Pool | Stratum V2 Statut | Notes |
|---|---|---|
| Braiins Pool | Full native support | Pioneered V2; 100% V2 compatible; job negotiation supported |
| OCEAN | DATUM Protocole (V2-adjacent) | Custom Protocole with similar goals; miner-side modèles de bloc |
| Luxor | V2-ready | Infrastructure supports V2 connections |
| DEMAND (DMND) | Full support | First Pool built natively on V2 (launched 2025) |
| Foundry USA | Testing | In beta testing; not yet production-ready for all miners |
| AntPool | No | No announced V2 plans |
| F2Pool | No | No announced V2 plans |
| ViaBTC | No | No announced V2 plans |
Hashrate on Stratum V2
Approximately 15-20% of Bitcoin’s hashrate du réseau currently connects via Stratum V2-compatible infrastructure, though the actual percentage using V2’s advanced Caractéristiques (especially job negotiation) is significantly lower. Most miners connecting via V2 are using it for the Chiffrement and efficiency benefits while still accepting Pool-Inconvénientstructed modèles de bloc.
The adoption trajectory is promising. The Stratum V2 Reference Implementation (SRI) working group projects that by the end of 2026, V2 will be the default Protocole for new ASIC firmware shipments, potentially reaching 40-60% of hashrate du réseau. Bitcoin Core v30 added experimental Stratum V2 Protocole support, signaling that the broader Bitcoin development community Inconvénientsiders V2 adoption important.
firmware Support
- Braiins OS+ — Full Stratum V2 support with job negotiation. The most mature V2 firmware. Available for Antminer S9, S17, S19, and T series.
- Stock firmware (most ASICs) — Stratum V1 only. Commentever, V2 translation proxies can bridge V1 hardware to V2 Pools.
- LuxOS — Stratum V2-ready.
- Bitaxe / open-source miners — Community firmware development for V2 support is ongoing. Check your specific device’s firmware repository for the latest Statut.
The DATUM Protocole: OCEAN’s Approach
DATUM (Decentralized Alternative Templates for Universal Mining) is OCEAN Pool‘s answer to the modèle de bloc centralization problem. While it shares goals with Stratum V2’s job negotiation, DATUM takes a different architectural approach that is worth understanding on its own terms.
Comment DATUM Works
With DATUM, a miner runs three components:
- A Bitcoin full node — connected to the Bitcoin network, maintaining a memPool, and Inconvénientstructing modèles de bloc.
- A DATUM gateway — software that communicates between the miner’s hardware, the full node, and the OCEAN Pool.
- matériel de minage — your ASIC miner, connected to the DATUM gateway instead of directly to a Pool.
The flow: your full node Inconvénientstructs a modèle de bloc from transactions in your memPool. The DATUM gateway formats this template for your matériel de minage. Your ASIC hashes against your template. If you find a block, it is submitted to the network directly, with the coinbase transaction paying you (the miner) directly — not the Pool.
DATUM vs. Stratum V2 Job Negotiation
| Caractéristique | Stratum V2 (Job Negotiation) | DATUM |
|---|---|---|
| modèle de bloc source | Miner proposes, Pool approves | Miner Inconvénientstructs and uses directly |
| Pool approval | Required (Pool validates template) | Not required (miner builds independently) |
| Coinbase Paiement | Pool distributes | Direct to miner (non-custodial) |
| Full node requirement | Yes (for job negotiation) | Yes |
| Pool Compatibilité | Any V2-supporting Pool | OCEAN only |
| Frais incentive | None specific | 50% Frais discount for DATUM miners |
The key philosophical difference: Stratum V2 job negotiation is a negotiation — the miner proposes a template, and the Pool accepts or rejects it. DATUM is unilateral — the miner Inconvénientstructs the template and uses it, period. OCEAN’s Modèle is more radically decentralized, but it is also limited to OCEAN’s ecosystem. Stratum V2 works across any supporting Pool.
Both approaches serve the same goal: wresting block Inconvénientstruction power away from centralized Pool operators and returning it to individual miners. They are allies, not competitors, in the fight for Bitcoin’s decentralization.
Who Should Use DATUM?
DATUM is ideal for miners who:
- Already run a Bitcoin full node (or are willing to)
- Want the most sovereign mining experience available in a Pooled Contexte
- Are comfortable with the technical requirements of running a DATUM gateway
- Want non-custodial récompense de blocs (paid directly in the coinbase transaction)
- Believe in OCEAN’s mission and want to support its growth
For the Moyenne mineur domestique who just wants to plug in an ASIC and start earning, DATUM adds complexity. But for the technically inclined Bitcoiner — the Mining Hacker — it is the most sovereign way to mine in a Pool today.
Comment Use Stratum V2: Guide d’installation
Ready to upgrade? Voici comment to get your opération de minage running on Stratum V2.
Option 1: Braiins OS+ firmware (Easiest)
If you run Antminer S9, S17, S19, or T-series hardware, the fastest path to Stratum V2 is flashing Braiins OS+ firmware.
- Download Braiins OS+ from braiins.com/os/plus for your ASIC Modèle.
- Flash the firmware using Braiins Toolbox (available for Linux, macOS, and Windows). The process takes about 5 minutes per device.
- Configure your Pool in the Braiins OS+ web interface. Set your Pool URL to Braiins Pool’s Stratum V2 endpoint:
stratum+tcp://v2.stratum.braiins.com:3333 - Enable autotuning (optional but recommended) — Braiins OS+ dynamically adjusts chip voltage and frequency for optimal efficiency.
- Verify V2 connection — check the “Stratum” section in the web interface. It should sComment “V2” as the active Protocole.
Option 2: Stratum V2 Translation Proxy (For V1 Hardware)
If you cannot flash custom firmware (Garantie concerns, unsupported hardware, etc.), you can run a Stratum V2 translation proxy on a local computer. This proxy sits between your V1 miner and the V2 Pool, translating the Protocole in real time.
- Install the SRI Translation Proxy — available from the Stratum V2 Reference Implementation GitHub repository. Runs on Linux, macOS, or a Raspberry Pi.
- Configure the proxy with your V2 Pool endpoint and your worker credentials.
- Point your ASIC miners at the proxy’s local address (e.g.,
stratum+tcp://192.168.1.100:34255). - Your miners speak V1 to the proxy, and the proxy speaks V2 to the Pool. You get Chiffrement and Bande passante benefits without modifying your miner firmware.
Note: the translation proxy does not support job negotiation. For full V2 benefits including miner-side modèle de bloc Inconvénientstruction, you need V2-native firmware.
Option 3: Job Negotiation (Full Sovereignty)
This is the advanced Configuration for miners who want complete control over their modèles de bloc.
- Run a Bitcoin full node — Bitcoin Core v28+ recommended. Ensure it is fully synced and connected to the network.
- Install Braiins OS+ on your ASIC hardware.
- Configure job negotiation in Braiins OS+ settings, pointing it to your local Bitcoin node’s RPC endpoint.
- Connect to a V2 Pool that supports job negotiation (Braiins Pool, DEMAND).
- Your miner now Inconvénientstructs modèles de bloc from your node’s memPool and proposes them to the Pool. The Pool validates and accepts the work.
This Installation requires more technical knowledge and a dedicated machine running Bitcoin Core (approximately 700+ GB of disk space for the full blockchain). But the Résultat is the most sovereign form of Pooled mining possible: you choose the transactions, you verify the chain, and you contribute to Bitcoin’s decentralization at the Protocole level.
Option 4: OCEAN DATUM (Maximum Decentralization)
For the ultimate in miner sovereignty within a Pooled framework:
- Run a Bitcoin full node — fully synced Bitcoin Core.
- Install the DATUM gateway from OCEAN’s GitHub repository.
- Configure the gateway with your Bitcoin node RPC credentials and your OCEAN worker credentials.
- Point your ASIC miners at the DATUM gateway’s local stratum endpoint.
- Mine with full sovereignty — your node builds templates, your hardware hashes, and your récompense de blocs go directly to your wallet.
What This Means for mineurs domestiques
If you are a mineur domestique reading this, you might be wondering: does any of this apply to me, or is it only for warehouse-scale operations?
It applies to you. Arguably, it applies to you more than anyone.
Privacy
mineurs domestiques have the most to gain from encrypted connections. Your mining traffic flows through your home internet connection — the same ISP that knows your name, address, and billing information. With Stratum V1, that ISP can see exactly which Pool you are mining on, Comment much hashrate you are contributing, and your wallet address. With Stratum V2, all they see is encrypted traffic. For miners who Valeur privacy — and if you are mining Bitcoin at home, you probably do — this is a significant upgrade.
Bande passante
Home internet connections, especially in rural Canada, are not always generous with Bande passante. Stratum V2’s 60-70% reduction in mining Protocole traffic is meaningful if you are running multiple ASICs on a residential connection, especially one shared with family streaming, video calls, and other household use. Less Bande passante Inconvénientsumed by mining means less impact on your household internet quality.
Efficiency
The 1.42 ms block-switching Latence (vs. 325 ms on V1) means your ASIC spends more time hashing against valid work and less time working on stale blocks. Over a year, Braiins estimates this recovers approximately 4.9 hours of puissance de hashage. For a miner paying residential tarifs d’électricité, every watt-hour counts. Stratum V2 makes your hardware more productive without Inconvénientsuming any additional power.
Sovereignty
This is the big one. If you are a mineur domestique, you are likely motivated by more than profit. You are here because you believe in Bitcoin’s decentralization, because you want to contribute to network security, because you want to earn non-KYC Bitcoin, or because you want to heat your home while stacking sats. Stratum V2 lets you take that conviction to its logical Conclusion: running a full node, Inconvénientstructing your own modèles de bloc, and ensuring that your hashrate is not being used to censor transactions or exclude addresses you believe should be included.
For Bitaxe and open-source miner operators, who are already on the frontier of decentralized hardware, Stratum V2 and DATUM are the Protocole-layer complement to their hardware-layer sovereignty. open-source hardware running a sovereign mining Protocole, connected to a non-custodial Pool — that is the full stack of decentralized minage Bitcoin.
The Road Ahead: Stratum V2 Adoption Timeline
Where does V2 go from here? Based on current momentum and announced plans:
2026 Milestones
- Q1-Q2 2026: Major Pools announce V2 support. Foundry USA expected to move from testing to production. More Pools add V2 endpoints.
- Q3 2026: V2 becomes the default Protocole in new ASIC firmware shipments. Bitmain and MicroBT expected to include V2 support in stock firmware for new Modèles.
- End of 2026: Projected 40-60% of hashrate du réseau on Stratum V2. Job negotiation usage still likely below 10%, but growing.
Remaining Challenges
Inertia. Stratum V1 works. Miners and Pools have built their infrastructure around it. Switching requires firmware updates, proxy Configurations, and operational changes. For large operations with thousands of machines, the migration cost is non-trivial.
Job negotiation complexity. Running a full node and configuring job negotiation requires technical knowledge that many miners do not have. Until the tooling becomes plug-and-play simple, most miners will use V2 for Chiffrement and efficiency while still accepting Pool-Inconvénientstructed templates.
Pool resistance. Some Pools may be reluctant to support job negotiation because it reduces their control over block Inconvénientstruction — which some Pools may view as a competitive advantage (or a revenue source, in the case of MEV-like transaction ordering). Pools that resist V2 are telling you something about their priorities.
firmware fragmentation. Not all ASIC Modèles have V2-capable firmware. Braiins OS+ covers major Antminer Modèles, but MicroBT Whatsminers, Canaan Avalons, and many newer ASICs still lack V2-native firmware options.
The Long-Term Vision
The endgame is clear: a Bitcoin network where every miner encrypts its Pool connection, selects its own transactions, and contributes to a genuinely decentralized block Inconvénientstruction process. Pools become what they should be — economic aggregators for Variance smoothing — rather than what they have become: centralized gatekeepers of Bitcoin’s transaction processing.
This is not a pipe dream. The Protocole exists. The firmware exists. The Pools exist. The only remaining variable is adoption — and adoption is a function of education, tooling, and community will.
FAQ
Is Stratum V2 backwards compatible with V1?
Not directly, but translation proxies bridge the gap. You can run V1 hardware behind a V2 proxy, which translates between the Protocoles in real time. Your old ASICs do not need new firmware to benefit from V2’s Chiffrement — they just need a proxy running on your local network. Commentever, job negotiation requires V2-native firmware.
Does Stratum V2 increase my mining profits?
Yes, modestly. The efficiency gains from reduced Bande passante, faster block switching (recovering ~4.9 hours of puissance de hashage annually), and reduced stale share rates can increase net profits by up to 7.4% according to Braiins’ measurements. The exact improvement depends on your specific Installation, internet connection, and distance from the Pool’s servers.
Can I use Stratum V2 with any Pool?
No. Only Pools that have implemented V2 support can accept V2 connections. As of early 2026, Braiins Pool has full native support, DEMAND (DMND) was built on V2, Luxor is V2-ready, and Foundry USA is testing. OCEAN uses its own DATUM Protocole, which shares V2’s goals but uses different technology. Most other major Pools (AntPool, F2Pool, ViaBTC) do not yet support V2.
Do I need to run a full node for Stratum V2?
No — only if you want to use job negotiation (miner-side modèle de bloc Inconvénientstruction). For the Chiffrement and efficiency benefits alone, you just need V2-compatible firmware or a translation proxy. Running a full node is the advanced path for miners who want sovereign transaction selection.
Is DATUM better than Stratum V2?
They serve different but complementary purposes. DATUM is OCEAN’s specific implementation for non-custodial, miner-sovereign block Inconvénientstruction within OCEAN’s Pool. Stratum V2 is a universal Protocole that works across multiple Pools. If you mine on OCEAN and run a full node, DATUM gives you maximum sovereignty. If you want V2 benefits across different Pools, Stratum V2 is the universal standard. Both advance decentralization — choosing either one over Stratum V1 is a win.
What happens if my V2 connection drops — do I lose work?
No. Stratum V2 includes connection resilience Caractéristiques, and most V2-capable firmware will automatically fall back to a backup Pool (which can be V1 or V2). You may experience a brief interruption while reconnecting, but submitted shares are not lost. Configure a backup Pool in your miner settings to minimize any potential downtime.
The Protocole Matters
Bitcoin miners obsess over hashrate, efficiency, power costs, and Pool Frais. These are the variables that determine short-term profitability. But the mining Protocole — the software layer between your hardware and the network — determines something more important: who controls Bitcoin’s block Inconvénientstruction.
For over a decade, that control has been silently concentrated in the hands of a few Pool operators running Stratum V1. Stratum V2 and DATUM are the corrections. They return transaction selection to individual miners. They encrypt connections that should never have been plaintext. They make Pooled mining compatible with Bitcoin’s founding principle: decentralization.
At D-Central Technologies, decentralization is not a Caractéristique we list on a product page. It is the reason we build, repair, and sell matériel de minage. From open-source miners like the Bitaxe to the Protocole layer with Stratum V2, every layer of minage Bitcoin should be as decentralized as the network itself.
Upgrade your Protocole. Run a full node. Choose a Pool that gives you sovereignty. Every hash matters — make yours count.
Ready to start mining? Browse our complete catalog of miners and accessories, or Lisez notre Pool de minage Comparaison to find the right Pool for your operation.
Is Stratum V2 backwards compatible with V1?
Not directly, but translation proxies bridge the gap. You can run V1 hardware behind a V2 proxy, which translates between the protocols in real time. Your old ASICs do not need new firmware to benefit from V2’s encryption — they just need a proxy running on your local network. However, job negotiation requires V2-native firmware.
Does Stratum V2 increase my mining profits?
Yes, modestly. The efficiency gains from reduced bandwidth, faster block switching (recovering ~4.9 hours of hash power annually), and reduced stale share rates can increase net profits by up to 7.4% according to Braiins’ measurements. The exact improvement depends on your specific setup, internet connection, and distance from the pool’s servers.
Can I use Stratum V2 with any pool?
No. Only pools that have implemented V2 support can accept V2 connections. As of early 2026, Braiins Pool has full native support, DEMAND (DMND) was built on V2, Luxor is V2-ready, and Foundry USA is testing. OCEAN uses its own DATUM protocol, which shares V2’s goals but uses different technology. Most other major pools (AntPool, F2Pool, ViaBTC) do not yet support V2.
Do I need to run a full node for Stratum V2?
No — only if you want to use job negotiation (miner-side block template construction). For the encryption and efficiency benefits alone, you just need V2-compatible firmware or a translation proxy. Running a full node is the advanced path for miners who want sovereign transaction selection.
Is DATUM better than Stratum V2?
They serve different but complementary purposes. DATUM is OCEAN’s specific implementation for non-custodial, miner-sovereign block construction within OCEAN’s pool. Stratum V2 is a universal protocol that works across multiple pools. If you mine on OCEAN and run a full node, DATUM gives you maximum sovereignty. If you want V2 benefits across different pools, Stratum V2 is the universal standard. Both advance decentralization — choosing either one over Stratum V1 is a win.
What happens if my V2 connection drops — do I lose work?
No. Stratum V2 includes connection resilience features, and most V2-capable firmware will automatically fall back to a backup pool (which can be V1 or V2). You may experience a brief interruption while reconnecting, but submitted shares are not lost. Configure a backup pool in your miner settings to minimize any potential downtime.