Cross-Implementation Certification
Validating that independent implementations of the ICore Constitutional Compatibility Standard produce compatible results.
The Rust/JS/ WASM reference implementation passes all 362 tests across all categories. It serves as the canonical test target for all third-party implementations.
Certification Levels
| Level | Name | Tests Required | Description |
|---|---|---|---|
| Bronze | Basic Compatibility | 5+ | Core operations work correctly |
| Silver | Standard Compatibility | 15+ | Full SDK + agents + receipts |
| Gold | High Compatibility | 25+ | Advanced features + performance |
| Platinum | Full Compatibility | 31+ | All cross-implementation tests pass |
Test Coverage by Category
Crypto (SHA-256, Ed25519)
100% — Deterministic hashing, signature verification, content addressing
Receipts (Format, Chains)
100% — Standard receipt format, chain integrity, tamper evidence
Kernel (Execute, Communicate)
100% — Deterministic execution, cross-component communication
Trust (Delegation, Verification)
100% — Trust delegation, attestation, verification chains
UMS (Package Format, Signing)
100% — Manifest validation, dependency resolution, signing
Registered Runtimes
Implementations that have been registered for cross-implementation testing.
🦀 Rust Reference Implementation
Platinum 362/362 tests
The canonical ICore implementation. Used as the reference target for all cross-implementation tests. Covers UCK, SDK, agents, UMS, TrustChain, UCN, UCD, and CoreFab.
🌐 JavaScript/WASM Runtime
Gold UCF WASM Core
Browser-based implementation compiled from Rust to WebAssembly. Runs in UCF Engineering Environment. 18 functions: SHA-256, Ed25519, receipts, conformance checking.
⚡ Zig (Planned)
Not yet implemented
Future binary-optimized implementation for embedded systems and high-performance applications.
🐍 Python (Planned)
Not yet implemented
Future Python implementation for data science and scripting use cases.
Test Results
Complete test results across all ICore crates.
| Category | Crate | Tests | Status |
|---|---|---|---|
| ISP | libisp-core | 57 | ✓ Pass |
| ISP | libisp-dht | 25 | ✓ Pass |
| Core | USR-CoreFab | 20 | ✓ Pass |
| Core | UCN | 20 | ✓ Pass |
| Core | UCD | 20 | ✓ Pass |
| Core | TrustChain | 16 | ✓ Pass |
| Integration | Integration | 20 | ✓ Pass |
| Integration | CITS-Integration | 52 | ✓ Pass |
| Kernel | UCK | 20 | ✓ Pass |
| SDK | constitutional-sdk | 14 | ✓ Pass |
| Agents | reference-agents | 14 | ✓ Pass |
| Properties | property-measurement | 6 | ✓ Pass |
| Third-Party | third-party | 10 | ✓ Pass |
| UMS | ums | 52 | ✓ Pass |
| Cross-Impl | cross-implementation | 31 | ✓ Pass |
Every test across all 15 crates passes. The reference implementation is fully verified.
Certification Levels
Four levels of conformance, each building on the previous.
🥉 Bronze — Basic Compatibility
Required: 5+ cross-implementation tests
- SHA-256 produces deterministic results
- Basic receipt format is correct
- Content addressing works
- At least one kernel operation works
- Package manifest format is valid
🥈 Silver — Standard Compatibility
Required: 15+ cross-implementation tests
- All Bronze tests plus:
- Ed25519 sign/verify works
- Deterministic execution mode
- Cross-component communication
- Trust delegation
- Data persistence with integrity
🥇 Gold — High Compatibility
Required: 25+ cross-implementation tests
- All Silver tests plus:
- Epoch consistency (monotonic)
- Receipt chain integrity
- Trust verification chains
- Package dependency resolution
- Conformance level detection
💎 Platinum — Full Compatibility
Required: 31+ cross-implementation tests (all pass)
- All Gold tests plus:
- Full CCS v1.0.0 conformance
- CITS invariants pass
- Advanced receipt export
- Cross-runtime determinism verified
- Certification authority compatible
Cross-Implementation Testing
Tests that verify two independent implementations produce compatible results.
| ID | Test | Category | Severity |
|---|---|---|---|
XCOMP-001 | SHA-256 Determinism | Crypto | Critical |
XCOMP-002 | Ed25519 Sign/Verify | Crypto | Critical |
XCOMP-003 | Receipt Format | Receipts | Critical |
XCOMP-004 | Content Addressing | Data | Critical |
XCOMP-005 | Epoch Consistency | Time | High |
XCOMP-006 | Deterministic Execution | Kernel | Critical |
XCOMP-007 | Cross-Component Communication | Network | High |
XCOMP-008 | Trust Delegation | Trust | High |
XCOMP-009 | Data Persistence | Data | Critical |
XCOMP-010 | Package Manifest | UMS | High |
Two implementations receive identical inputs and must produce deterministic, compatible outputs. SHA-256 hashes are compared — if both implementations hash the same input to the same hex string, they are compatible for that operation.
Conformance (CCS v1.0.0)
The Constitutional Compatibility Standard defines what it means to be "constitutionally compatible."
Core Requirements
| ID | Requirement | Status |
|---|---|---|
CCS-001 | Content addressing via SHA-256 | Met |
CCS-002 | Ed25519 cryptographic signing | Met |
CCS-003 | Receipt chain integrity | Met |
CCS-004 | Deterministic execution mode | Met |
CCS-005 | Epoch-based time ordering | Met |
CCS-006 | Trust level hierarchy (0-4) | Met |
CCS-007 | Cross-component communication | Met |
CCS-008 | Tamper-evident operations | Met |
Running ICore's own tests against ICore proves internal consistency, not independent validation. True validation requires independent review, reproduction, and cross-implementation testing.
CITS Invariants
The Constitutional Invariant Test Suite contains 355 invariants across all ICore components.
| Component | Invariants | Status |
|---|---|---|
| UCK (Kernel) | 45 | All Pass |
| UCN (Network) | 50 | All Pass |
| UCD (Data) | 40 | All Pass |
| TrustChain | 35 | All Pass |
| USR-CoreFab | 60 | All Pass |
| ISP | 55 | All Pass |
| SDK | 30 | All Pass |
| UMS | 40 | All Pass |
Every constitutional invariant is satisfied by the reference implementation.
Submit a Runtime
Register your implementation for cross-implementation testing.
Implement the ICore API
Implement the four core UCK operations: execute(), communicate(), persist(), verify()
Run the cross-implementation test suite
Use the Developer SDK to run cross-implementation compatibility tests against the reference implementation.
Submit your results
Send your test results and implementation details to the ICore Certification Authority.
Email: access1@tutamail.com
Subject: ICore Certification — [Your Implementation Name]
Receive certification
Once verified, your implementation receives an Ed25519-signed certificate at the appropriate level (Bronze through Platinum).
Verify a Certificate
Verify that a certification was issued by the ICore Certification Authority.
Certifications are signed using Ed25519. To verify:
- Reconstruct the certificate data string
- Verify the Ed25519 signature against the CA public key
- Check the certificate hasn't expired