What is Signum (SIGNA)?

Quick Facts

  • Ticker: SIGNA
  • Origin: Evolved from Burstcoin, genesis block in 2014
  • Consensus: Proof of Commitment (PoC+) — uses hard drive space
  • Energy use: Less than 0.002% of Bitcoin's energy consumption
  • Governance: Signum Network Association (SNA), a Swiss non-profit
  • DEX: BTDEX — a decentralized exchange built on Signum smart contracts
  • Smart contracts: Supported natively, writable in Java-based SmartJ

Introduction

Signum is a sustainable, community-driven blockchain platform designed to make crypto accessible to everyday people and businesses. Its native coin, SIGNA, powers payments, smart contracts, token creation, and decentralized applications — all at a fraction of the environmental cost of traditional blockchains.

Unlike Bitcoin or Ethereum, Signum was built with sustainability at its core, using available hard drive space instead of energy-hungry processors to secure the network.

History & Background

Signum traces its roots back to Burstcoin, which launched its genesis block in 2014 and was the first blockchain to implement Proof-of-Capacity consensus. Starting in 2019, a dedicated core development team began rebuilding and modernizing the platform, officially rebranding as Signum in 2021.

The Signum Network Association (SNA), a Swiss non-profit organization founded in 2021, provides the institutional backbone to support the project's long-term vision and growth.

How Signum Works

Signum uses Proof of Commitment (PoC+), an evolution of the original Proof-of-Capacity algorithm. Instead of requiring power-hungry mining rigs, PoC+ lets participants use their existing hard drive space to mine blocks.

Miners can further boost their effective capacity by committing a SIGNA balance (a stake) to their account — rewarding long-term participants and strengthening network security without additional hardware purchases.

Tokenomics

SIGNA is the native utility coin of the Signum blockchain. It is used to pay transaction fees, fuel smart contracts, create and trade tokens, and participate in on-chain messaging. SIGNA can also be staked as a commitment alongside disk-space mining, aligning miner incentives with network health. Tokens on Signum are ERC-20 compliant and can be issued without deploying a separate smart contract.

Circulating supply ? 2.20 billion SIGNA
Total supply ? 2.20 billion SIGNA
Max supply ? -- SIGNA
Updated 19h ago

Ecosystem & Use Cases

Signum supports a wide range of on-chain applications:

  • BTDEX: A non-custodial decentralized exchange using smart contracts and encrypted messages for both crypto and fiat trading.
  • Smart contracts: Written in SmartJ (Java-based) or Signum-C, executing on-chain with no downtime risk.
  • NFTs: Create and trade digital, physical, or intellectual property assets.
  • P2P Messaging: Encrypted, military-grade peer-to-peer communication on-chain.
  • Aliases: Customizable data shortcuts for human-readable addresses.

Team, Governance & Community

Signum is an open-source, community-supported project. The Signum Network Association (SNA), based in Switzerland, oversees the project's governance and direction. The active global community includes developers, business owners, educators, and investors who collaborate through Discord, Telegram, Reddit, and other channels.

Advantages

  • Eco-friendly mining: PoC+ uses hard drive space, consuming a tiny fraction of Bitcoin's energy.
  • No e-waste: Consumer-grade hardware can be repurposed, avoiding dedicated mining waste.
  • Built-in features: Smart contracts, NFTs, messaging, and token creation are all native — no add-ons needed.
  • Low fees: Microtransactions are viable with fees as low as fractions of a SIGNA.
  • Censorship-resistant: DApps run unstoppably on-chain.

Risks & Challenges

  • Low liquidity: Trading volumes remain relatively small compared to major blockchains.
  • Ecosystem size: The developer and user base is still growing and relatively niche.
  • Competition: Larger, well-funded blockchains also promote sustainability and smart contract capabilities.
  • Awareness: Despite a long history, Signum remains under the radar for mainstream crypto audiences.

Long-Term Vision

Signum aims to be the go-to blockchain for sustainable, real-world applications — offering a platform where businesses, developers, educators, and individuals can build and transact without the environmental burden of traditional crypto. By continuing to evolve PoC+ consensus and expanding its ecosystem of tools and DApps, Signum positions itself as a greener, fairer alternative to energy-intensive blockchains.

Frequently Asked Questions

Signum is a sustainable, community-driven blockchain platform that powers digital payments, smart contracts, token creation, and decentralized applications. Its native coin is SIGNA, used to pay fees and participate in all platform features.

Signum uses Proof of Commitment (PoC+), which relies on available hard drive space instead of power-hungry processors. Miners can also commit a SIGNA balance to boost their effective mining capacity.

Signum evolved from Burstcoin, which launched its genesis block in 2014 and was the first blockchain to use Proof-of-Capacity consensus. A core team rebranded and rebuilt the project as Signum starting in 2019, with the official rebrand completed in 2021.

Signum uses less than 0.002% of Bitcoin's energy to operate its blockchain, and it relies on consumer-grade hard drives that can be repurposed, producing virtually no e-waste.

BTDEX is Signum's decentralized exchange, built directly on the Signum blockchain using smart contracts and encrypted on-chain messaging. It supports non-custodial trading of both crypto and fiat currencies.

The Signum Network Association (SNA), a Swiss non-profit organization founded in 2021, provides institutional support and governance. Day-to-day development is driven by an open-source community of global contributors.

SIGNA is used to pay transaction fees, execute smart contracts, create and trade tokens, send encrypted messages, and participate in mining via the PoC+ commitment mechanism.

Yes, Signum natively supports NFT creation representing digital, physical, or intellectual property. Users can also issue ERC-20 compliant tokens directly without needing to deploy a separate smart contract.