Witch City Exchange

High-performance decoupled Leaflet map engine rendering a stylized colonial harbor basemap with custom bounds, smooth deceleration zooming, and geocoded pins for 400-year historical sites.

A 10-tier dynamic pin asset pipeline rendering gold sponsors, historic landmarks, cemetery markers, restrooms, civic halls, and busker stages with retina DPI scaling and custom anchor offsets.

Real-time HTML5 Geolocation Watcher with user proximity accuracy bounds, pulsating radar animation, and automatic pan-to-viewport for tourists walking the Salem Heritage Trail.

Mobile-first responsive drawer component providing fluid thumb-friendly inspection of landmark history, audio narratives, sponsor badges, and directions without leaving the spatial map canvas.

Public REST endpoint accepting citizen memories, geo-coordinates, and stories for Salem's 400th anniversary. Submissions are queued with pending status for editorial review.

Silent trap field (engine_security_check) rejecting bot vectors alongside automatic WordPress media ingestion (media_handle_upload) for high-resolution 2026 photo uploads.

Structured meta schema recording landmark offerings in the quadricentennial year (product name, price, description) allowing future generations to inspect 2026 economic life in Salem.

Archival multi-century timeline engine linking 1626 Naumkeag founding, 1692 hysteria, and 1819 maritime trade into first-person historical storytelling cards stored in history_json.

Dedicated CPT (s400_busker) and isolated WordPress user role giving street magicians, living statues, and musicians full profile control while sandboxing administrative backend access.

Self-service REST login endpoint (/s400/v1/busker-login) with transient IP lockout: 5 failed attempts trigger a 15-minute 429 cooldown, issuing 64-character bearer tokens on success.

Independent client web app running under /exchange/busker-hub/ enabling performers to edit stage names, update bios, link social channels, and upload photo galleries directly from mobile.

Direct performer compensation architecture generating scan-ready QR code attachments and deep links for Venmo and CashApp, allowing tourists on the Essex Street Mall to tip instantly.

Custom server interceptor for /busker/{slug} generating dynamic OpenGraph & Twitter Card headers from performer character data, resolving smooth previews across social networks.

Curated JSON cemetery registry serving 32+ prominent graves and witch trial victims across Charter Street (1637), the Witch Trials Memorial (1992), and Broad Street Cemetery (1655).

Interactive digital tribute API permitting visitors to place candles, black roses, copper coins, or heartfelt notes (capped to 150 chars) on tombstones with atomic count increments.

Full WordPress administrative moderation page (cemetery-tokens) providing one-click deletion of inappropriate notes and instant IP banning with 403 Forbidden enforcement.

High-fidelity digital preservation of all 20 victims of the 1692 hysteria with execution dates, biographical narratives, and their famous final words carved into the stone UI.

Non-blocking async weather client polling conditions over Salem Harbor with 8-second abort controllers, categorizing weather into 9 distinct atmospheric behavioral states.

Contextual alert banner automatically triggered by rain, storms, or sub-freezing temperatures directing visitors to indoor destinations (Peabody Essex Museum, House of the Seven Gables).

Built-in QA testing hooks allowing developers to test any weather condition via URL query parameter (?weather=rain), automatically injecting the "Indoor Shelter" map filter pill.

Central orchestrator class (Salem_400_Engine) autoloading modular dependencies: CPTs, REST endpoints, WPGraphQL types, image compressors, CORS handlers, and analytics tables.

Anti-scraping frontend protection redirecting all web traffic to the static showcase site while whitelisting REST API routes (/wp-json/), GraphQL, and WP-Admin.

Native GraphQL schema definitions creating Snapshot2026 and resolving linked LegacySupporter sponsor relationships for modern JAMstack frontend architectures.

Custom hierarchical taxonomy (legacy_era) categorizing heritage nodes into historic epochs (1626 Settlement, 1692 Trials, Golden Age of Sail, 2026 Quadricentennial).

Custom administrative interface (s400-showcase-dash) allowing curators to pick which businesses appear on the public showcase, instantly publishing to /showcase-sponsors.

Dedicated telemetry subsystem logging landmark clicks and merchant conversions into a custom MySQL table (wp_s400_analytics) with a real-time admin leaderboards.

High-speed WordPress transient caching layer (s400_main_map_data) serving cached spatial payloads in sub-50ms with automatic cache purging hooked into save_post_h7g_legacy_node.

Automatic image optimization pipeline hooked into wp_generate_attachment_metadata generating WebP formats with full alpha transparency preservation and automated deletion cleanup.