Case study
Sigmacore: archive-node RPC and LSP indexing for LUKSO teams
Sigmacore is Sigmatic's infrastructure product for LUKSO teams: live paid archive-node RPC access and a partner LSP indexer offering, backed by hands-on node operations.
This is the portfolio view. The product home, current access, and onboarding live at sigmacore.io.
Why it matters
Production LUKSO apps run on data most nodes discard.
LUKSO is an open Layer 1 EVM blockchain running an unmodified Ethereum protocol stack (chain ID 42, with LYX as the native token), so standard Ethereum RPC methods work as expected. A pruned node keeps only recent state and drops older history, so any read against a past block, a historical eth_call, an earlier balance, or a transaction trace, comes back empty. An archive node keeps the full historical state of the chain, every block and storage slot, so those reads resolve at any block height.
LUKSO's application layer is built on LUKSO Standard Proposals (LSPs). Universal Profiles are smart-contract accounts on ERC725/LSP0 that store profile metadata (LSP3) and received-asset registries (LSP5) as ERC725Y key-value data; LSP7 and LSP8 digital assets carry LSP4 metadata; LSP26 records follows. Reading that at app scale means indexing it, decoding ERC725Y keys and asset metadata into queryable tables, rather than issuing a fresh RPC call for every profile, token, and follower.
The gap shows up the moment an app needs history. Indexers backfilling from genesis, portfolio and dashboard views that reconstruct past balances, analytics over transfers and holders, and audits all read state a pruned node no longer holds. And because ERC725Y stores values as bytes keyed by hashed data keys, raw responses are opaque without the LSP schema, so an indexer that decodes them is the difference between usable data and a wall of hex.
What Sigmacore runs
Archive-node RPC and LSP indexing, operated for LUKSO teams.
Sigmacore is the infrastructure product Sigmatic operates for teams building on LUKSO. It provides live paid archive-node RPC access and a partner LSP indexer offering, backed by infrastructure operations, node services, archive access, and backend support for teams that need reliable chain data.
An archive endpoint answers direct reads and traces on demand; the LSP indexer sits alongside it, backfilling and continuously decoding profile, asset, and follower data into tables an app can query without re-deriving it on every request.
Infrastructure operations, node services, archive access, and practical backend support for teams that need reliable chain data.
Operated by Sigmatic
Run by an operator with real node history.
Sigmacore is operated by Sigmatic B.V., the Dutch blockchain and AI systems company founded by Jordy. The infrastructure sits on real operating history: Ethereum proof-of-stake testing and node operations since 2020, and ongoing developer and validator support through work with the LUKSO Foundation.
For teams that want operations handled end to end, Sigmatic provides white-glove node, server, validator, and maintenance services. Onboarding for archive RPC and indexer access is contact-based, so setup matches what a team actually needs instead of a fixed plan.
The same operator runs the validator infrastructure behind Stakingverse. See the Stakingverse case study and the staking infrastructure service for how that operating surface fits together.
Get access
Request archive RPC and LSP indexing access.
Sigmacore's product home is sigmacore.io, the canonical place to see current access and reach the team. Onboarding is contact-based, so the setup is scoped to what your team actually queries.
Related
LUKSO development
Universal Profiles, LSP7 and LSP8 assets, and LSP-native builds.
Open
Staking infrastructure
Validator operations, node maintenance, and white-glove ops.
Open
Stakingverse case study
The liquid staking product built on the same operator's infra.
Open
Sigmatic home
The full systems shop: blockchain, infrastructure, and AI.
Open
Contact