tari_ootle_common_types
Shared types used across the Ootle layer-2 protocol — consensus, networking, wallet, and validator node crates. Defines the core vocabulary for sharding, epochs, substate addressing, and committee membership.
Key types
| Type | Description |
|---|---|
SubstateAddress |
32-byte address derived from a SubstateId; determines which shard owns a piece of state |
SubstateRequirement |
A SubstateId paired with an optional expected version, used in transaction input sets |
VersionedSubstateId |
A SubstateId with a concrete version number |
Shard / ShardGroup |
Shard index and contiguous shard range that a validator committee covers |
NumPreshards |
Total number of pre-shards in the network (power of two) |
Epoch |
Monotonically increasing consensus epoch counter |
NodeHeight |
Block height within a shard |
Committee<TAddr> |
Ordered set of validator addresses and their vote power for a shard group |
Network |
Enum distinguishing Mainnet, Stagenet, Nextnet, and LocalNet |
License
BSD-3-Clause. Copyright 2026 The Tari Project.