feed-theblock (The Block source adapter)

Pure fetch + normalize adapter for one outlet. Emits the common record (or [UNAVAILABLE]). Dedup/ store/judge live downstream in [[crypto-news-store]] + [[narrative-news]].

Hard rule

Never fabricate. On failure → [UNAVAILABLE]. Return ≥1 record or a clean [UNAVAILABLE] (PRD AC5/AC6).

Retrieval recipe

• Endpoint (verified resolving, RSS 2.0): https://www.theblock.co/rss.xml
• Parse RSS channel > item: title→title, link→url (canonicalize, strip utm_*), pubDate(RFC-822)→published_at (ISO-8601 UTC), description/content:encoded→summary (strip HTML), category→tags, dc:creator optional, media:thumbnail is an image (ignore for record). lang: en, source: theblock.

Politeness (required)

Conditional GET (ETag/If-Modified-Since; 304 → nothing-new). Exponential backoff on 429/5xx, ~2 retries, then [UNAVAILABLE]. Sequential fetch.

Normalized output record