Glossary
Definitions for MXEs, Arx nodes, computation definitions, offsets, and other Arcium Explorer terms.
- MXE
- MPC eXecution Environment: the onchain account group that owns definitions and computations.
- Arx node
- A compute node participating in Arcium MPC execution for a cluster.
- Definition
- Circuit definition account describing a computation's circuit, inputs, outputs, and CU amount.
- Offset
- Program-local numeric identifier for an account or definition.
- CU
- Compute Units charged by the Arcium protocol for a computation definition.
- Solana CU
- Solana compute units consumed by this onchain transaction. Distinct from Arcium CU, which meters per-computation cost inside the protocol.
- MPC
- Multi-Party Computation: multiple Arx nodes jointly compute over encrypted inputs so no single node ever sees the plaintext.
- Epoch
- A fixed-length protocol time window the network advances through; the bar shows progress toward the next epoch.
- CU Price
- Price in lamports per Arcium Compute Unit charged for computations run on this cluster.
- CU Capacity
- The Arcium Compute Unit capacity this node claims to contribute to its cluster.
- Verified circuits
- How many of the program's circuits the indexer has cryptographically verified — the onchain bytes or offchain hash match the committed circuit.
- First seen
- Earliest computation the indexer has recorded for this program. Bounded by indexer history — not necessarily onchain genesis.