world.evr v0.1.0

world.evr v0.1.0 — Open Source Reference Implementation

This is the first public open-source release of the world.evr reference implementation.

world.evr is a deterministic, portable, and independently verifiable artifact format and reference implementation for persistent digital worlds.

This release establishes the canonical deterministic path from world source through artifact generation, verification, attestation, and reproducible validation. It serves as the reference implementation for the world.evr standard and the first building block of the broader EverArcade digital reality infrastructure.

What's Included

• Deterministic World Factory
• world.evr package generation
• Artifact verification
• Trust-root validation
• Hard manifest → payload binding
• Independent reviewer path
• Permanent must-fail regression fixtures
• Offline reproducible build support
• Documentation and reference examples

Verification

The verification path underwent an independent external review. RC1 findings were resolved in RC2, including:

• Trust-source attack mitigation
• Hard manifest-to-payload binding
• Independent reviewer path
• Permanent regression fixtures preventing future regressions

The reviewed verification path includes deterministic artifact verification, trust-root enforcement, payload integrity validation, and negative test fixtures designed to ensure invalid artifacts are rejected.

Scope

This release assumes monolithic world artifacts.

Future modular artifacts—including Assets.evr, Runtime.evr, and cross-artifact lineage—are intentionally outside the scope of this release and, if introduced, will require explicit manifest-hash binding and independent attestation.

Release Bundle

File

everarcade-world-factory-release.tar.gz

SHA-256

fe147600fd63f37b326853e0d1ed5550739d565650bba1c4cefc90e12ed8fa20

Independent Verification

After downloading the release bundle and its accompanying .sha256 file:

sha256sum -c everarcade-world-factory-release.tar.gz.sha256

The expected result is:

everarcade-world-factory-release.tar.gz: OK

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This release marks the completion of the first open-source reference implementation for world.evr.

From here, development expands beyond the artifact pipeline itself toward the broader EverArcade ecosystem: registries, world operators, verification services, archives, vaults, hosting infrastructure, and the digital reality supply chain built on top of portable, verifiable worlds.