Chain of custody receipt

Source #2482

Cryptographic attestation that the document below was captured in Goblin House's archive at the timestamp shown, with the hash listed. If the original URL goes dark or its content changes, this receipt remains as evidence of what the public record looked like at capture time.

TitleWikipedia summary of Facebook-Cambridge Analytica scandal
Original URLhttps://privacyinternational.org/examples/1888/cambridge-analytica-data-analysis-drives-ted-cruz-presidential-campaign
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2013-01-01
EntityCambridge Analytica
Captured2026-04-08T01:37:59.520Z UTC
Hash computed at2026-04-08T01:37:59.520Z UTC
SHA-256bde2a750ba07f2980518239f21d244aaada91f9a913d609a68ffc951b544aa3f
Content length124 bytes
Content preview (first 800 chars)
Cambridge Analytica collected data through 'This Is Your Digital Life' app that harvested up to 87 million Facebook profiles

Verifying this receipt

The hash above was computed as:

sha256( coalesce(url, '<no-url>') || '\n' || raw_content )

Anyone with a copy of the original document can verify the match:

  1. Take the URL field and the original document content.
  2. Concatenate url + '\n' + content and SHA-256 it.
  3. Compare to the SHA-256 row above.

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curl -X POST https://www.goblinhouse.net/source/2482/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/2482/receipt.json