[PROPOSAL] [DRAFT] SnapGuard - Verifiable State Sync & Snapshot Pre-flight (Validator-Grade)

Category: Critical validator tooling / AEZ reliability Request: $35,000 Timeline: 10–12 weeks build + 12-months Maintenance Commitment License: Apache-2.0 Deliverables: Open-source CLI, GitHub Action, ops runbook PRs, evidence pack 1) Executive summary SnapGuard is a small, offline CLI that fail-fast verifies Cosmos state sync and snapshot restores before an operator touches a live data directory. It: • Derives trusted state-sync parameters from chain-registry with multi-RPC header witnesses and optional CometBFT light client verification. • Verifies snapshot integrity (checksums and, where supported , metadata) from any provider (Quicksync, Polkachu, or self-hosted). • Runs an ephemeral restore and confirms AppHash/height match the trusted header. • Emits a single Go/No-Go report plus a paste-ready `config.toml` stanza. Today, operators often discover failures after long downloads/restarts. SnapGuard makes bootstrap predictable, auditable, and fast . Demand across validators and relayers is broad and immediate (no LOIs required). 2) Problem & urgency • Trust params are fragile. Operators manually copy `trust_height`/`trust_hash` under time…

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Hi community, we are tagging @Govmos, @Life_and_Crypto, @Salim, @Harry_Hal @Teslagrinder, @calabi.yau, and everyone for visibility on this proposal.

Thank you for your time and attention.