{ "meta": { "dataset": "Bitcoin Mining Firmware Feature Matrix", "publisher": "D-Central Technologies", "url": "https://d-central.tech/data/firmware-feature-matrix/", "license": "https://creativecommons.org/licenses/by/4.0/", "version": "1.0", "dateModified": "2026-06-15", "description": "Feature-by-feature comparison of Antminer mining firmware: Stock, BraiinsOS+, VNish, LuxOS, and DCENT_OS [closed beta]. Bible-verified. CC BY 4.0.", "notes": { "dagger": "† Vendor-documented value; subject to change with firmware updates. Verify at vendor source.", "ddagger": "‡ DCENT_OS closed-beta target specification — GPL-3.0, not yet publicly released. Public beta targeted summer 2026.", "voltage": "Per-domain voltage is a hardware constraint: no firmware provides per-chip voltage control. BM1366: 11 domains/10 chips; BM1368: 12/9; BM1370: 13/7.", "dev_fees": "Dev fees are ranges, not flat numbers. Always verify current rates at vendor documentation.", "stratum": "BraiinsOS+ is the only production firmware with native Stratum V2 as of 2026." } }, "rows": [ { "category": "chip_management", "category_label": "Chip Management", "feature": "Per-chip frequency tuning", "stock": "N (uniform)", "braiins": "Y", "vnish": "Y", "luxos": "Y", "dcent_os": "Y‡", "notes": "Write PLL registers per chip via addressed commands. Frequency is addressable per chip; voltage is not." }, { "category": "chip_management", "category_label": "Chip Management", "feature": "Per-DOMAIN voltage control", "stock": "N", "braiins": "Y†", "vnish": "Y†", "luxos": "Y†", "dcent_os": "Y‡", "notes": "Bible-confirmed: voltage is per-domain (one DC-DC converter per group). BM1366: 11 domains/10 chips; BM1368: 12 domains/9 chips; BM1370: 13 domains/7 chips. No firmware delivers per-chip voltage — this is a hardware constraint, not a software limitation." }, { "category": "chip_management", "category_label": "Chip Management", "feature": "Chip health monitoring", "stock": "Basic", "braiins": "Detailed", "vnish": "Detailed", "luxos": "Very detailed", "dcent_os": "Very detailed‡", "notes": "Track per-chip: hashrate, temp, error rate, PLL lock status." }, { "category": "chip_management", "category_label": "Chip Management", "feature": "Weak chip compensation", "stock": "N", "braiins": "Y", "vnish": "Y (throttle comp)", "luxos": "Y", "dcent_os": "Y‡", "notes": "If a chip is weak, boost neighbours to maintain board hashrate target." }, { "category": "chip_management", "category_label": "Chip Management", "feature": "Dead chip detection", "stock": "Basic", "braiins": "Y", "vnish": "Y", "luxos": "Y (healthchipget)", "dcent_os": "Y‡", "notes": "Enumerate chain, detect missing responses, log position." }, { "category": "chip_management", "category_label": "Chip Management", "feature": "Dead chip bypass", "stock": "N", "braiins": "Limited", "vnish": "Y", "luxos": "Y", "dcent_os": "Y‡", "notes": "Skip dead chips in work distribution, adjust addressing." }, { "category": "chip_management", "category_label": "Chip Management", "feature": "Chip binning / grading", "stock": "N", "braiins": "Y", "vnish": "Y", "luxos": "Y", "dcent_os": "Y‡", "notes": "Grade A/B/C chips by max stable frequency; store in EEPROM." }, { "category": "chip_management", "category_label": "Chip Management", "feature": "Core-level monitoring", "stock": "N", "braiins": "N", "vnish": "N", "luxos": "Some", "dcent_os": "Y‡", "notes": "Track per-core hashrate via nonce response core_id field. LuxOS has partial implementation; DCENT_OS targets full per-core stats." }, { "category": "autotuning", "category_label": "Autotuning", "feature": "Auto-tune on first boot", "stock": "N", "braiins": "Y", "vnish": "Y", "luxos": "Y", "dcent_os": "Y‡", "notes": "Frequency sweep per chip: start low, ramp up, find max stable operating point." }, { "category": "autotuning", "category_label": "Autotuning", "feature": "Convergence time", "stock": "-", "braiins": "~20–30 min†", "vnish": "~15–20 min†", "luxos": "~20 min†", "dcent_os": "Target: 15 min‡", "notes": "Aggressive binary search vs conservative linear ramp. Vendor-documented; verify at source." }, { "category": "autotuning", "category_label": "Autotuning", "feature": "Tune target", "stock": "-", "braiins": "Efficiency (J/TH)", "vnish": "Hashrate", "luxos": "Power (watts)", "dcent_os": "Configurable‡", "notes": "DCENT_OS target: user chooses between max hashrate, target watts, or target efficiency. Autotuner values are calculated at runtime per chip — not preset." }, { "category": "autotuning", "category_label": "Autotuning", "feature": "Re-tune on conditions", "stock": "N", "braiins": "Temp changes", "vnish": "Temp + failures", "luxos": "Temp + power", "dcent_os": "All triggers‡", "notes": "DCENT_OS target: re-tune on temp change >5°C, chip failure, PSU voltage drift." }, { "category": "autotuning", "category_label": "Autotuning", "feature": "Profile persistence", "stock": "-", "braiins": "Flash", "vnish": "Flash", "luxos": "Flash", "dcent_os": "Flash + JSON export‡", "notes": "DCENT_OS target: save to flash + allow JSON export/import of tuning profiles across identical miners." }, { "category": "autotuning", "category_label": "Autotuning", "feature": "Overclocking profiles", "stock": "N", "braiins": "Power target", "vnish": "Multiple presets", "luxos": "Power target", "dcent_os": "Custom + presets‡", "notes": "All profile values are runtime operating points calculated by the autotuner — not factory presets. DCENT_OS target: Low/Medium/High/Max presets plus custom per-chip frequency/voltage." }, { "category": "power_management", "category_label": "Power Management", "feature": "Power targeting (watts)", "stock": "N", "braiins": "Y", "vnish": "Y", "luxos": "Y (primary)", "dcent_os": "Y‡", "notes": "Adjust per-domain voltage + per-chip frequency to hit a target wattage. LuxOS uses power targeting as its primary tuning axis." }, { "category": "power_management", "category_label": "Power Management", "feature": "Power metering", "stock": "PSU-level", "braiins": "PSU-level", "vnish": "Board-level", "luxos": "Board-level", "dcent_os": "Board-level‡", "notes": "Board-level metering reads APW12 I2C ADC for voltage/current per output rail — more granular than PSU-level telemetry." }, { "category": "power_management", "category_label": "Power Management", "feature": "Dynamic power scaling", "stock": "N", "braiins": "Y", "vnish": "Limited", "luxos": "Y (DPS)", "dcent_os": "Y‡", "notes": "Adjust power consumption based on external signals (electricity price, grid state, temperature)." }, { "category": "power_management", "category_label": "Power Management", "feature": "Efficiency mode (J/TH)", "stock": "N", "braiins": "Y", "vnish": "Y", "luxos": "Y", "dcent_os": "Y‡", "notes": "Optimise joules-per-terahash rather than raw hashrate. Reduces power at moderate hashrate cost." }, { "category": "power_management", "category_label": "Power Management", "feature": "110V / 120V support", "stock": "N", "braiins": "N", "vnish": "N", "luxos": "Y (APW12 bypass)†", "dcent_os": "Y‡ (target)", "notes": "LuxOS introduced APW12 PSU bypass mode: skips the PFC stage, accepts 120V input directly. Hardware path enabled by firmware. Bible-confirmed: no other production firmware supports 110V." }, { "category": "power_management", "category_label": "Power Management", "feature": "Power ramp-up sequence", "stock": "Instant", "braiins": "Gradual", "vnish": "Gradual", "luxos": "Gradual", "dcent_os": "Gradual‡", "notes": "Ramp voltage domains one at a time to avoid inrush current on startup." }, { "category": "power_management", "category_label": "Power Management", "feature": "PSU watchdog", "stock": "Stock", "braiins": "Y", "vnish": "Y", "luxos": "Y", "dcent_os": "Y‡", "notes": "APW12 I2C heartbeat; ~1 minute timeout triggers PSU shutdown." }, { "category": "power_management", "category_label": "Power Management", "feature": "Watt-anchored mining", "stock": "N", "braiins": "N", "vnish": "N", "luxos": "Y†", "dcent_os": "Y‡", "notes": "LuxOS pioneered maintaining exact wattage regardless of thermal or frequency drift. DCENT_OS targets parity." }, { "category": "curtailment", "category_label": "Curtailment / Demand Response", "feature": "API curtailment", "stock": "N", "braiins": "Y (gRPC)", "vnish": "Y (REST)", "luxos": "Y (ultra-fast)†", "dcent_os": "Y‡", "notes": "Single API call to reduce or restore full power draw." }, { "category": "curtailment", "category_label": "Curtailment / Demand Response", "feature": "Curtailment speed (down)", "stock": "-", "braiins": "~30 s†", "vnish": "~15 s†", "luxos": "<5 s†", "dcent_os": "Target: <5 s‡", "notes": "LuxOS achieves <5 s via frequency drop + immediate voltage reduction. Fastest of any production firmware as of 2026†." }, { "category": "curtailment", "category_label": "Curtailment / Demand Response", "feature": "Curtailment speed (up)", "stock": "-", "braiins": "~60 s†", "vnish": "~30 s†", "luxos": "<60 s†", "dcent_os": "Target: <60 s‡", "notes": "Gradual ramp-up avoids thermal shock after cold restart." }, { "category": "curtailment", "category_label": "Curtailment / Demand Response", "feature": "Grid signal integration", "stock": "N", "braiins": "Manual", "vnish": "Manual", "luxos": "Via API†", "dcent_os": "API + Home Assistant‡", "notes": "DCENT_OS target: native Home Assistant integration for grid-signal-driven curtailment." }, { "category": "curtailment", "category_label": "Curtailment / Demand Response", "feature": "Electricity price awareness", "stock": "N", "braiins": "N", "vnish": "N", "luxos": "Via API†", "dcent_os": "Built-in‡ (target)", "notes": "DCENT_OS target: accept price feed, auto-adjust mining intensity based on electricity cost." }, { "category": "curtailment", "category_label": "Curtailment / Demand Response", "feature": "Scheduled curtailment", "stock": "N", "braiins": "Via scripts", "vnish": "Via scripts", "luxos": "Limited†", "dcent_os": "Partial‡", "notes": "DCENT_OS current beta: scheduled sleep windows + night-mode power-reduction time windows (config.rs). A full arbitrary time-based mode scheduler (mine/eco/off by time window) is planned future work — not yet shipped." }, { "category": "curtailment", "category_label": "Curtailment / Demand Response", "feature": "Space heater / room-temp mode", "stock": "N", "braiins": "N", "vnish": "N", "luxos": "N", "dcent_os": "Y‡ (target)", "notes": "DCENT_OS unique target: room temperature targeting, BTU display, thermostat integration. No other firmware in this comparison targets this use case." }, { "category": "connectivity", "category_label": "Connectivity & Protocol", "feature": "Stratum V1", "stock": "Y", "braiins": "Y", "vnish": "Y", "luxos": "Y", "dcent_os": "Y‡", "notes": "JSON-RPC over TCP; universal baseline for pool compatibility." }, { "category": "connectivity", "category_label": "Connectivity & Protocol", "feature": "Stratum V2 (native)", "stock": "N", "braiins": "Y†", "vnish": "N", "luxos": "N", "dcent_os": "Y‡ (target)", "notes": "Bible-confirmed: BraiinsOS+ is the ONLY production firmware with native Stratum V2 as of 2026. V2 provides encrypted connections, lower bandwidth, and miner-side block template construction via Job Declaration. DCENT_OS targets V2 as a planned feature — not yet shipped." }, { "category": "connectivity", "category_label": "Connectivity & Protocol", "feature": "DATUM / OCEAN protocol", "stock": "N", "braiins": "N", "vnish": "N", "luxos": "N", "dcent_os": "Y‡ (target)", "notes": "DATUM allows the miner to construct its own block templates, enabling true mining sovereignty. DCENT_OS unique target; no production firmware supports this as of 2026." }, { "category": "connectivity", "category_label": "Connectivity & Protocol", "feature": "Pool failover", "stock": "Basic (3 pools)", "braiins": "Advanced", "vnish": "Advanced", "luxos": "Advanced†", "dcent_os": "Advanced‡", "notes": "Priority list + health checking + automatic rotation between pools." }, { "category": "connectivity", "category_label": "Connectivity & Protocol", "feature": "TLS / encrypted connections", "stock": "N", "braiins": "Stratum V2†", "vnish": "N", "luxos": "N", "dcent_os": "Stratum V2‡", "notes": "Noise protocol encryption is native to Stratum V2. Only firmwares with V2 support can provide TLS-equivalent pool encryption." }, { "category": "connectivity", "category_label": "Connectivity & Protocol", "feature": "AsicBoost (version rolling)", "stock": "Y (fixed mask)", "braiins": "Y (configurable)†", "vnish": "Y (configurable)†", "luxos": "Y (configurable)†", "dcent_os": "Y (configurable)‡", "notes": "mining.configure negotiation; default mask 0x1FFFE000. BM1366+ supports 4 midstates per job." }, { "category": "thermal", "category_label": "Thermal Management", "feature": "Fan control", "stock": "Fixed curve", "braiins": "PID control", "vnish": "PID control", "luxos": "PID control†", "dcent_os": "PID control‡", "notes": "PID with configurable Kp, Ki, Kd. BraiinsOS+ defaults: Kp=5, Ki=0.03, Kd=0.015." }, { "category": "thermal", "category_label": "Thermal Management", "feature": "Target temperature", "stock": "Fixed", "braiins": "Configurable†", "vnish": "Configurable†", "luxos": "Configurable†", "dcent_os": "Configurable‡", "notes": "Default ~75°C across third-party firmwares. DCENT_OS targets adjustable range 40–85°C." }, { "category": "thermal", "category_label": "Thermal Management", "feature": "Temperature protection", "stock": "Shutdown only", "braiins": "Throttle + shutdown", "vnish": "Throttle + shutdown", "luxos": "Throttle + shutdown†", "dcent_os": "Throttle + shutdown‡", "notes": "Soft limit: reduce frequency in steps. Hard limit: shut down board. Third-party firmwares add gradual throttle before hard shutdown." }, { "category": "thermal", "category_label": "Thermal Management", "feature": "Immersion cooling mode", "stock": "N", "braiins": "Limited", "vnish": "Y†", "luxos": "Limited†", "dcent_os": "Y‡ (target)", "notes": "Disables fans, raises temperature limits, optimises voltage/frequency for liquid cooling environment." }, { "category": "thermal", "category_label": "Thermal Management", "feature": "Fan failure detection", "stock": "Basic", "braiins": "Y", "vnish": "Y", "luxos": "Y†", "dcent_os": "Y‡", "notes": "RPM monitoring; alert on fan stall; reduce hashrate or shut down on failure." }, { "category": "security", "category_label": "Security", "feature": "Default credentials", "stock": "root/root", "braiins": "root/root†", "vnish": "admin/admin†", "luxos": "Varies†", "dcent_os": "Generated‡", "notes": "DCENT_OS target: unique random password per device displayed on first boot. Verify default credentials at vendor documentation before deployment." }, { "category": "security", "category_label": "Security", "feature": "Web authentication", "stock": "Basic HTTP", "braiins": "Basic HTTP†", "vnish": "Session†", "luxos": "Session†", "dcent_os": "Session + CSRF‡", "notes": "DCENT_OS target: session-based auth with CSRF protection by default." }, { "category": "security", "category_label": "Security", "feature": "API authentication", "stock": "None", "braiins": "None†", "vnish": "API key†", "luxos": "API key†", "dcent_os": "API key‡", "notes": "DCENT_OS target: API key required for all write operations." }, { "category": "security", "category_label": "Security", "feature": "SSH access", "stock": "Locked (since 2019)†", "braiins": "Y†", "vnish": "N†", "luxos": "N†", "dcent_os": "Y‡", "notes": "Stock SSH locked on S19+ generation. DCENT_OS target: public key auth only (no password SSH). Verify current SSH status in vendor documentation." }, { "category": "security", "category_label": "Security", "feature": "Firmware update verification", "stock": "SHA256†", "braiins": "RSA + SHA256†", "vnish": "Proprietary†", "luxos": "Proprietary†", "dcent_os": "Ed25519 + SHA256‡", "notes": "DCENT_OS target: Ed25519 signatures on firmware updates for modern elliptic-curve security." }, { "category": "security", "category_label": "Security", "feature": "SOC 2 Type 2 certification", "stock": "N", "braiins": "N†", "vnish": "N†", "luxos": "Y†", "dcent_os": "N (not targeted)", "notes": "LuxOS (Luxor Technology Corporation) is the only mining firmware with SOC 2 Type 2 certification as of 2026†. Verify at luxor.tech." }, { "category": "security", "category_label": "Security", "feature": "Audit logging", "stock": "None", "braiins": "Some†", "vnish": "Unknown", "luxos": "Y†", "dcent_os": "Full‡", "notes": "DCENT_OS target: log all admin actions with timestamps and user identity." }, { "category": "open_source", "category_label": "Open Source & Licensing", "feature": "Mining binary open source", "stock": "N (S11+)†", "braiins": "N (BOSminer binary)†", "vnish": "N†", "luxos": "N†", "dcent_os": "Y‡ (GPL-3.0)", "notes": "Bible-confirmed: Stock released source for S9-era models; S11+ not published (noted GPL gap). BraiinsOS+ BOSminer binary is proprietary — stored in bos-assets repo, not open. VNish and LuxOS are fully proprietary. DCENT_OS targets GPL-3.0 full open source." }, { "category": "open_source", "category_label": "Open Source & Licensing", "feature": "Control board hardware open source", "stock": "N", "braiins": "Y (BCB100, GPLv3)†", "vnish": "N†", "luxos": "N†", "dcent_os": "Y‡ (target)", "notes": "Braiins open-sourced the BCB100 control board March 2025: schematics, Gerbers, BOM, CAD, Linux kernel + U-Boot source. License: GPLv3 (software) + CERN-OHL-S (hardware). A foundational contribution to the open mining community." }, { "category": "open_source", "category_label": "Open Source & Licensing", "feature": "API definitions open source", "stock": "N", "braiins": "Y (gRPC protobuf)†", "vnish": "N†", "luxos": "N†", "dcent_os": "Y‡", "notes": "Braiins publishes gRPC API protobuf definitions at github.com/braiins/bos-plus-api. DCENT_OS targets open API definitions." }, { "category": "open_source", "category_label": "Open Source & Licensing", "feature": "Developer fee", "stock": "0%", "braiins": "2–2.5%†", "vnish": "2–2.8%†", "luxos": "2.8%†", "dcent_os": "0% default‡ (configurable)", "notes": "Bible-confirmed ranges. Dev fees redirect a portion of hashrate to the firmware developer's pool. DCENT_OS: 0% default; optional user-configurable donation field. Always verify current rates at vendor documentation — fee structures change across firmware versions." }, { "category": "open_source", "category_label": "Open Source & Licensing", "feature": "Base OS licence", "stock": "Angstrom/Yocto (open)†", "braiins": "OpenWrt (open)†", "vnish": "Linux (open)†", "luxos": "Linux (open)†", "dcent_os": "Buildroot (open)‡", "notes": "All firmwares build on open Linux-based foundations. The differentiation is in the mining software layer above the OS." }, { "category": "fleet", "category_label": "Fleet & API", "feature": "CGMiner API (port 4028)", "stock": "Y", "braiins": "Y (via gRPC bridge)†", "vnish": "Y†", "luxos": "Y (compatible)†", "dcent_os": "Y‡", "notes": "Required for pyasic compatibility. All firmwares implement core CGMiner command set: version, summary, stats, pools, devs, config." }, { "category": "fleet", "category_label": "Fleet & API", "feature": "Prometheus metrics endpoint", "stock": "N", "braiins": "Y†", "vnish": "N†", "luxos": "N†", "dcent_os": "Y‡ (target)", "notes": "DCENT_OS target: /metrics endpoint for Grafana/Prometheus monitoring stacks. BraiinsOS+ also provides Prometheus metrics." }, { "category": "fleet", "category_label": "Fleet & API", "feature": "Batch configuration", "stock": "N", "braiins": "BOS Toolbox†", "vnish": "REST API†", "luxos": "SDK†", "dcent_os": "Web + API‡", "notes": "Configure multiple miners in a single operation." }, { "category": "fleet", "category_label": "Fleet & API", "feature": "Network discovery (mDNS)", "stock": "N", "braiins": "BOS Toolbox†", "vnish": "Limited†", "luxos": "Limited†", "dcent_os": "Y‡ (target, mDNS)", "notes": "DCENT_OS target: automatic miner discovery on the local network via mDNS (zero-config)." }, { "category": "fleet", "category_label": "Fleet & API", "feature": "SSH access for fleet ops", "stock": "N", "braiins": "Y†", "vnish": "N†", "luxos": "N†", "dcent_os": "Y‡", "notes": "Full shell access for advanced operators and scripted fleet management." }, { "category": "fleet", "category_label": "Fleet & API", "feature": "OTA firmware updates", "stock": "Stock only†", "braiins": "Y†", "vnish": "Y†", "luxos": "Y†", "dcent_os": "Y‡", "notes": "Over-the-air firmware upload via web interface." }, { "category": "fleet", "category_label": "Fleet & API", "feature": "Firmware rollback (A/B)", "stock": "N", "braiins": "Y†", "vnish": "Limited†", "luxos": "Limited†", "dcent_os": "Y‡", "notes": "DCENT_OS target: dual-partition A/B scheme — safe boot of previous firmware if new version fails." } ] }