Eva-3

| Grade | VA content | Melting point | Typical use | |-------|------------|---------------|--------------| | EVA-1 | 12% | 95°C | Heavy-duty bags | | EVA-2 | 18% | 88°C | Wire coating, tubing | | EVA-3 | 28-33% | 68°C | Solar panels, adhesives | | EVA-4 | 40% | 50°C (amorphous) | Pressure-sensitive adhesives |

Perhaps the most radical feature of EVA-3 is its intrinsic confidence engine. Unlike generic models that confidently produce plausible fiction, EVA-3 has a dynamic epistemic threshold.

If the confidence level on a factual retrieval dips below 92% (a user-configurable limit), EVA-3 does not hallucinate. Instead, it outputs: | Grade | VA content | Melting point

"Insufficient verifiable data to complete request. Missing 3 data points: [X, Y, Z]. Please supply sources or lower verification threshold."

For healthcare and legal sectors, where a hallucination equals a lawsuit, this is revolutionary. "Insufficient verifiable data to complete request

EVA-3 is not a toy. It deploys via a lightweight sidecar container that connects to Snowflake, Databricks, or local PostgreSQL. The inference engine runs in a TEE (Trusted Execution Environment), meaning even the cloud provider cannot see the raw reasoning tokens, only the verification receipts.

Unlike standard EVA, EVA-3 is rarely used in a thermoplastic state. It undergoes peroxide-initiated crosslinking: For healthcare and legal sectors, where a hallucination

Processing window: Temperature must be controlled within ±3°C. Under-curing leads to creep; over-curing causes discoloration (acetic acid release).

Standard EVA degrades when exposed to oils, sweat, and disinfectants. EVA-3 does not. It is now the material of choice for prosthetic liners and diabetic insoles. Its closed-cell structure prevents bacterial ingress, and its low compression set means a prosthetic foot retains its shape after 2 million steps.

Standard models reason inscrutably. EVA-3, however, generates a cryptographically verifiable reasoning map alongside every output.

© Stephen Horvath 2025