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Legacy Voice Guide · TROPTIONS + Deepgram
Legacy Layer 0
Legacy Layer 0 is the protocol substrate beneath the vault application — handling namespace registry, estate event anchoring, validator participation, cross-chain proof routing, and x402 service settlement.
Chain Role
Namespace registry + estate event settlement + cross-chain proof coordination
Runtime Language
Rust — memory-safe, high-performance, ideal for sovereign protocol infrastructure
Consensus Model
Authority-based PoS for early institutional deployments. Upgrade path to permissionless PoS defined.
Node Architecture
Validator Node
Consensus participant
Proposes and validates blocks. Stakes identity in the namespace registry. Required for estate event finality.
Observer Node
Read-only audit monitor
Subscribes to all events without voting. Used by auditors, regulators, and compliance systems.
Archive Node
Historical retention
Stores full state history. Required for legal evidence preservation and probate proceedings.
Relayer Node
Cross-chain event relay
Routes proof anchors and state events between Legacy Layer 0 and connected chains (ETH, SOL, XRPL, Stellar).
Gateway Node
External integration
API-accessible entry point for institutional integrations, DID resolvers, and attorney systems.
Protocol Modules
Namespace Registry
crate: namespace-registry
On-chain namespace creation, ownership, member roles, and lifecycle state transitions.
Vault Manifest Anchoring
crate: vault-anchor
Immutable anchoring of SHA-256 manifest hashes per vault state change.
Policy Registry
crate: policy-engine
On-chain release policy snapshots, guardian quorum configs, and waiting period enforcement.
Executor / Guardian Attestations
crate: vault-anchor
Cryptographic attestation records for executor authority and guardian approvals.
Release Event Recording
crate: audit-events
Final release proofs anchored with timestamp, parties involved, and condition satisfaction hash.
Audit Event Stream
crate: audit-events
All 22 audit action types written to chain. Append-only. Tamper-detectable.
Cross-chain Routing Metadata
crate: cross-chain-relayer
External chain asset references, wallet mappings, and proof routing instructions.
x402 Payment Hooks
crate: x402-hooks
Service metering, operator action billing, and machine-payable API access settlement.
Repository Structure
protocol/layer0/
├── node/ # Node binary — CLI, P2P, RPC
├── runtime/ # Block execution runtime
└── crates/
├── namespace-registry/ # .legacy namespace on-chain model
├── vault-anchor/ # Manifest + attestation anchoring
├── policy-engine/ # Release policy on-chain enforcement
├── audit-events/ # Event stream + append-only log
├── x402-hooks/ # Payment settlement integration
└── cross-chain-relayer/ # Proof routing + chain adaptersScaffold created at protocol/layer0/ — each crate has a README with purpose, types, events, interfaces, and TODOs.