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Siacoin ASIC Miner Profitability Calculator
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Profitability
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Our cutting-edge mining calculator offers comprehensive insights across all major cryptocurrency algorithms, helping users easily identify the most profitable options for their specific hardware. The algorithm data is continuously refreshed to keep pace with the dynamic crypto mining industry, providing accurate evaluations based on real-time profitability statistics and overall market activity. This empowers users to make well-informed choices that reflect the latest mining conditions and algorithm performance.
The chain that fired its own ASICs
Sia's mining history explains why Blake2b-Sia hardware is rare, and why it is worth tracking anyway.
The first Sia ASICs
Obelisk shipped the first Blake2b miner designed for Sia, and Bitmain and Innosilicon followed with far larger units almost immediately.
The fork that chose its hardware
Sia changed its proof of work so that only the Obelisk hardware kept working, one of the few chains to deliberately invalidate an existing ASIC fleet.
Blake2b-Sia, a small but open market
Sia mining is a niche with modest network hashrate and renewed interest from other Blake2b chains. The table above lists every Blake2b-Sia miner we track; when it is empty, none is currently sold new.
- Network hashrate
- 2.54 PH/s
- Difficulty
- 1,227.84 P
- Block reward
- 30,000 SC
- Block time
- 8.1 min
No Blake2b-Sia ASIC is listed at the moment. The table fills automatically when a miner is added to our database; the live network figures and the calculator link on the left still work in the meantime.
What to expect from Blake2b-Sia mining
Choose BLAKE2b on 64-bit systems and demand speed without conceding security, because its SIMD-friendly ARX core thrives on SSE, AVX2, and AVX-512 to push throughput far beyond classic hashes like SHA-256. Trust its counter-driven processing with finalization flags to shut down length extension, which protects streaming and API-bound use cases that assemble messages on the fly. Inject uniqueness with the built-in salt and separate contexts with the personalization field, and you mute rainbow tables and cross-protocol confusion in one stroke. Use the keyed mode as a fast MAC, and you replace HMAC with fewer operations while keeping strong authenticity guarantees. Tune the digest size from a few bits up to 512 bits, and pick 512 bits for maximum margin or 256 bits for compact outputs that align with common tooling. Expect collision resistance at roughly half the output length and preimage resistance near the full length, so a 512-bit digest targets about 256-bit collision strength and 512-bit preimage strength under standard assumptions. Rely on 64-bit words, a compact state, and 12 rounds of the G mixing function to balance diffusion, latency, and cache friendliness on modern cores. Stream data of arbitrary length and keep memory overhead modest, because the design favors linear passes and predictable access patterns. Count on robust resistance to known cryptanalytic techniques, as BLAKE2b inherits the SHA-3–finalist lineage of BLAKE while refining constants and layout for efficiency. Implementations in widely used libraries enable constant-time coding practices and broad platform coverage, which simplifies audits and deployment. Choose variable output to fit protocols that embed short tags, long digests, or Merkle leaves without extra truncation layers. Favor BLAKE2b for file integrity checks, digital signatures, and password processing, and note that Argon2 builds on its compression function for memory-hard defense. Leverage its strengths in proof-of-work systems as seen in Siacoin, Firo, and Ergo, where high hash rates on 64-bit hardware matter. Expect superior performance per core on general-purpose CPUs, since vectorized additions, rotations, and XORs map cleanly to the execution units of modern microarchitectures. Refer to RFC 7693 for precise parameters and test vectors, then deploy with confidence across servers, desktops, and embedded 64-bit targets.
Blake2b is a fast, simple hash that ASICs implement with very little silicon, so a Blake2b-Sia miner is cheap to build and cheap to run. The catch is the other side of the same coin: the Sia network is small, so a single large machine is a meaningful share of it, and the difficulty responds quickly when hardware arrives or leaves.
The profit column in the table is calculated from the live Sia difficulty and price exactly as on every other algorithm page, and it treats each miner as Sia-only hardware. If another Blake2b chain becomes mineable with the same units, it appears in the coin list and the table picks the better-paying one automatically.
Because Sia's block reward decreases slowly toward a fixed floor rather than halving, the daily figure is driven almost entirely by price and network hashrate, which makes this one of the easier algorithms to reason about over a payback period.
About the Blake2b algorithm
BLAKE2b is a 64-bit–optimized cryptographic hash function whose tree-capable architecture and SIMD-friendly design turn parallelism into practical speed, allowing multi-core and vectorized implementations to hash data at gigabyte-per-second scales while conserving energy per byte processed; its flexible parameter block (digest length up to 512 bits, key length, fanout, depth, salt, personalization, and more as standardized in RFC 7693) enables precise tuning for protocols, file integrity systems, and embedded or server environments alike, and its built-in domain separation via salt and personalization cleanly isolates contexts to reduce cross-protocol risks and accidental collisions; beyond unkeyed hashing, BLAKE2b offers a keyed mode that functions as an efficient MAC/PRF without HMAC overhead, and it underpins modern constructions such as the Argon2 password hash, where memory hardness adds resistance to GPU and ASIC cracking-an instance of method becoming ethics; compared with SHA-256, BLAKE2b typically achieves higher throughput while preserving strong preimage and collision resistance consistent with its output size, and its variable-length digests furnish engineers with a principled trade-off between bandwidth and security level; in practice it is deployed across digital signatures as a fast prehash, integrity checking in storage and software distribution, and password processing pipelines, while its parallel variants (notably BLAKE2bp) exploit tree hashing to scale across threads and cores; for cryptocurrency ecosystems, its efficiency and hardware friendliness have made it a natural fit, exemplified by Siacoin’s proof-of-work and use within the Ergo stack (Autolykos leverages BLAKE2b), with FPGA and ASIC implementations amplifying throughput for sustained workloads; importantly, its design has withstood extensive cryptanalytic scrutiny since its publication, and constant-time, side-channel-aware implementations are widely available in audited libraries such as libsodium, making it a pragmatic default when speed, configurability, and robust security must cohere-and when choice must become action, and action must answer to security’s quiet demands.
