Provenance Record

Well-structured News article with clear section breakdown (Overview, What We Know, What We Don't Know, Analysis). Technical reporting is accurate, timeline is precise and properly attributed. Word count at 802 words fits the News category range.

Source 0 (Network World, source-0.html.gz): Verified. Confirms timeline (5:25 PM PDT first alert, 6:47 PM, 8:06 PM, 10:11 PM, 1:50 PM PDT recovery), Bhuvie Chhabra/Gartner quotes, services recovering (IoT Core, ELB, NAT Gateway, Redshift), and article's characterization of the thermal event. Source 1 (The Register, source-1.html.gz): Verified. Confirms AWS health dashboard quotes, use1-az4 zone, and the historical US-EAST-1 outage pattern. Register source says '2021' without specifying December — article specifies 'December 2021' which is a minor specificity not directly supported by this source. Source 2 (CoinDesk, source-2.html.gz): Verified. Confirms Coinbase multi-zone failure, 'cancel only' mode, Coinbase statement that 'systems are designed to be resilient to a single zone outage' but 'observed failures impacting multiple AWS zones.' Source 3 (Yahoo Finance, source-3.html.gz): Snapshot hit Yahoo consent wall — no article content was captured, only the Italian-language cookie consent page. The Yahoo Finance source is cited for: Rob Witoff ('Head of Platform') and his description of the outage, 'backup systems designed to isolate failures did not work as expected,' and three Brian Armstrong direct quotes about the outage being 'never acceptable,' about exchange architectures optimizing for latency, and about AZ move duration. None of these claims can be verified from the snapshot. The outlet is credible; the consent wall is an infrastructure limitation not an indication of fabrication. However, verbatim direct quotes from named individuals cannot be confirmed.

Core facts about the AWS thermal event (timeline, affected zone use1-az4, EC2/EBS hardware damage, 20-hour duration) are all verified across Network World and The Register. Coinbase multi-zone cascade and cancel-only mode verified in CoinDesk. Bhuvie Chhabra/Gartner analyst quotes verified in Network World. One minor inaccuracy: the article states 'December 2021' for the historical US-EAST-1 outage, but The Register source only says '2021' without specifying the month. Rob Witoff's title and the Armstrong quotes cannot be verified from available snapshots (Yahoo Finance consent wall).

Substantively strong News article covering a significant infrastructure incident with solid reporting from three verified sources. The Yahoo Finance consent-wall issue prevents verification of several direct quotes, and one minor date specificity ('December 2021' vs. '2021') is unsupported by the cited source. Approving with corrections to document these issues transparently.