Spacemesh

Market position

Spacemesh is one of several storage- and space-based consensus blockchains positioned against both proof-of-work chains (criticized in project materials for energy waste, ASIC specialization and mining-pool centralization) and proof-of-stake chains (criticized for requiring large capital stakes). A November 2023 third-party analysis cited cumulative funding of $22.5 million and an implied valuation of roughly $360 million. As of the DropsTab snapshot, SMH ranks #7628 by market capitalization with about $20 thousand market cap, roughly $13.7 thousand fully diluted valuation and about $1.6 thousand in 24-hour volume, with the price down approximately 91% over the trailing year—indicating very limited current market traction for the token.

Differentiation rests on the PoST consensus mechanism combined with a layered DAG mesh: participation requires only unused disk space rather than specialized hardware, energy-intensive computation, or staked capital, which the project argues yields ASIC resistance, a low barrier to entry, and resistance to mining-pool and wealth concentration while parallelizing block production for higher transaction throughput.

Technology

The core technical elements are Proof of Space-Time (PoST), which substitutes committed disk space over time for proof-of-work computation, and a layered DAG ("mesh") data structure that allows multiple blocks per layer to be produced and ordered in parallel, improving throughput relative to fixed-interval single-chain designs. The reference full node, go-spacemesh, is written in Go (requiring Go 1.24 or later, OpenCL, and git-lfs to build) and includes subsystems for activation, beacon generation, the Hare consensus rounds (hare3/hare4), a tortoise voting/finality component, a genvm virtual machine, syncing, malfeasance detection, and a gRPC API. Complementary repositories include post-rs (Rust POST proving), poet (Proof of Elapsed Time service), an on-the-fly Merkle tree implementation, go-scale, and an economics specification repository. A standalone mode allows launching a self-contained network with one-minute epochs and ten six-second layers per epoch for development purposes.

Go-to-market

Distribution is community- and open-source-led: node software is published on GitHub under the spacemeshos organization with contribution guidelines, good-first-issue tagging and Gitcoin-funded issues, and end users are served via the Spacemesh App, a light wallet and an initialization app for generating Proof of Space data. The project also states it works with developers, communities and partners on ecosystem applications and tooling, using token rewards as an incentive for ecosystem builders.

Owners of ordinary home PCs with spare hard-drive capacity who wish to participate in network consensus without dedicated mining hardware or capital deposits, plus dapp and application developers seeking low-fee value-transfer and smart-contract functionality, and open-source contributors to the protocol.

Geography

Founded and headquartered in Israel per press coverage of the seed round and a later third-party analysis. The project describes a distributed global community with presence in the United States, Hong Kong, Japan, Germany, China, Vietnam, the United Kingdom and Canada.

History

Co-founded in Israel in 2017 by Aviv Eyal and Tomer Afek, with Tal Moran also identified as a founder. A $3 million seed round was announced in May 2018, followed in September 2018 by a $15 million Series A led by Polychain Capital with participation from investors including Paradigm, Electric Capital, 1kx, Arrington Capital and Coinbase Ventures; other reported backers include Bain Capital Ventures, MetaStable, HTX Ventures, gumi Cryptos Capital, Slow Ventures, BRM Group, iAngels, Alignment and Bancor. A further round of $200,000 was recorded in December 2021 (a Medium analysis instead describes roughly $4 million raised by end-2021). The SMH token launched for trading on 16 November 2023, and protocol development has continued through 2026.

Risks & controversies

An open GitHub issue (#5364, filed December 2023) reports a critical reward-accounting bug in Spacemesh v1.2.8 affecting nodes syncing over local networks. Market data show severe token price deterioration—approximately -91% over one year and -50% over one month at the time of the snapshot—with market capitalization and daily trading volume in the tens of thousands and low thousands of dollars respectively. Sources also note reported inconsistencies in supply figures (circulating supply listed above total supply) and, per the project's own README, the software was described as still working toward a public permissionless testnet milestone.