What is SWSS Chain specified for?

The legal settlement of real-world assets, decided at genesis. Deed transactions are a native transaction class processed ahead of every other class, finality is deterministic, and identity and zero-knowledge privacy are protocol functions operating at the consensus layer rather than applications deployed above it.

Is it EVM compatible?

Fully, at the Cancun level. Solidity contracts deploy unchanged and standard JSON-RPC tooling, wallets and Ethereum libraries connect without modification. Compatibility is a floor rather than the product: the deed transaction class and the Finality Certificate operate beneath it, at the consensus layer.

What are the canonical endpoints?

Mainnet RPC is swssrpc.swss.io and testnet RPC is testnet.swssrpc.swss.io. The block explorer is swssscan.swss.io. These are the only endpoints that should be hardcoded into wallets, applications or infrastructure.

Can a settled transaction be reversed?

No. Once a block is finalised under the consensus protocol and its Finality Certificate is issued, the state change is irreversible. Later corrections are appended as new attested events, which preserves the full provenance rather than overwriting it.

Which networks does SWSS Chain operate?

Two. Mainnet is Chain ID 122605 and the testnet is Chain ID 122606. Both produce a block every second and run the same client build, so the testnet is a rehearsal of the production protocol rather than a reduced version of it.

Which RPC endpoints are current?

Mainnet is swssrpc.swss.io and the testnet is testnet.swssrpc.swss.io, and those two are the only endpoints that should be configured in a wallet, an application or any infrastructure. Older third-party material sometimes lists a shorter address on the same domain, which has no DNS record and resolves nowhere.

What is SWSS Coin used for on the network?

Gas, staking and settlement, on both networks. It is the native currency of the settlement layer rather than a balance held inside an application, which is why every deed settlement and every validator reward is denominated in it.

SWSS Chain, RWA Settlement Layer 1

Q: Is SWSS Chain actually live?

Yes. Mainnet operates at Chain ID 122605 and produces a block every second, which is readable from the network itself and publicly verifiable at swssscan.swss.io. A parallel testnet runs at Chain ID 122606 on the same client build and the same block cadence.

Q: How long was it tested before mainnet?

The testnet entered active validator operation in May 2025 and ran more than 365 consecutive days of independently operated testing before mainnet was declared production ready. Mainnet block height is consistent with that date and can be checked against the chain.

Whitepaper

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SWSS Chain

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SwssChain

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Design Philosophy

Purpose-built for real-world asset settlement since 2019. Not retrofitted. Not adapted. Designed from the first protocol decision to be the settlement layer the global asset economy requires.

SWSS Chain is a Layer 1 blockchain built from genesis for one purpose: to provide settlement-grade finality for real-world assets at global scale. Every architectural decision — from consensus design to transaction prioritisation to finality certification to zero-knowledge privacy to on-chain identity — has been made in service of this single mandate.

Development commenced in Q1 2019. The testnet at Chain ID 122606 entered active validator operation in May 2025 and underwent more than 365 consecutive days of rigorous, independently operated testing before mainnet was declared production-ready. SWSS Chain mainnet is now live, producing a block every second, and is publicly verifiable at swssscan.swss.io. Every transaction, every deed settlement, every Finality Certificate is on record.

The Development Record

2019 Development commenced Q1 2019

365+ Days of validator testnet operation before mainnet

LIVE Mainnet, verifiable at swssscan.swss.io

Chain Parameters

Every value below is readable from the network itself. None of it has to be taken on trust.

Parameter	Value
Chain Name	SWSS Chain Mainnet
Chain ID (Mainnet)	122605 (0x1DEED)
Chain ID (Testnet)	122606 (0x1DEEE)
Block Production	1 second, on both networks
Finality	Sub-second and deterministic. A finalised block is not reversible
Consensus	SCP v3.1.4, four pillars around a Byzantine fault tolerant foundation
Settlement Privacy	SCP-ZK v3.3.0
Identity	SWSS IVL v1.4.3
Settlement Standard	DEED-1, Type 0x03 and Type 0x04
Virtual Machine	EVM Cancun. Solidity contracts deploy unchanged
Native Currency	SWSS Coin, used for gas, staking and settlement
Mainnet RPC	swssrpc.swss.io
Testnet RPC	testnet.swssrpc.swss.io
Block Explorer	swssscan.swss.io

The architecture that produces these figures is examined in Technology Architecture, and the products settling on them in The SWSS Ecosystem.

Three Core Design Principles

swsschain · design principles Three, and each is a constraint

swss chain principles

These are constraints rather than features, and each one closes a door. A network that settles first cannot also optimise for general throughput; a network that guarantees deed position cannot also sell it. That is the trade this chain was built to make.

Principle One

Settlement First

Every block produced by SWSS Chain is a legal settlement event, not merely a computational record. SWSS Chain is not a database that happens to be tamper-resistant. It is a settlement infrastructure that happens to be programmable. This distinction shapes every design decision from consensus to data structure.

Principle Two

RWA Priority

Deed transactions receive guaranteed first-position processing in every block, regardless of network load or competing transaction types. Predictable settlement time is a legal requirement. SWSS Chain delivers it at the protocol level through the Stratified Asset Prioritisation Engine.

Principle Three

Finality Certification

Every block containing deed settlements produces a Finality Certificate, signed by the active validator set under aggregate signature so the certificate stays constant in size. The deed transactions in that block are committed to a Merkle root, and any single settlement proves its inclusion against that root. No existing public blockchain produces this instrument automatically. SWSS Chain produces it as a protocol-level output, not as an application built above one.

Frequently Asked Questions

9 questions

Q01

Is SWSS Chain actually live?

Yes. Mainnet operates at Chain ID 122605 and produces a block every second, which is readable from the network itself and publicly verifiable at swssscan.swss.io. A parallel testnet runs at Chain ID 122606 on the same client build and the same block cadence.

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