Czech Streets Alena Exclusive Verified Jun 2026

As AI video manipulation becomes sophisticated, collectors want provenance. They want the original Alena Exclusive to verify that it is real (authentic amateur street casting) and not a deepfake or a spliced video. The "exclusive" tag implies a verifiable chain of custody from the original producer.

| Material | Typical Era | Longevity (years) | Maintenance Cost (€/m²/yr) | |----------|------------|-------------------|----------------------------| | Cobblestone (kamenina) | 13th‑17th c. | 300‑500 | €7‑€10 | | Brick‑paved (cihlová dlažba) | 19th‑early 20th c. | 150‑250 | €5‑€8 | | Concrete slab (betonová dlažba) | 1950‑1990 | 40‑70 | €3‑€4 | | Porous asphalt (průsvětlivý asfalt) | 2000‑present | 20‑30 | €2‑€3 | | Heated stone (radiant) | pilot 2023‑2025 | 30‑50 | €9‑€12 (incl. energy) | czech streets alena exclusive