Chain of custody receipt

Source #3576

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.

TitlePBS NewsHour report on Boeing CEO Senate testimony
Original URLhttps://www.armed-services.senate.gov/hearings/calendar
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2024-06-18
EntityDavid L. Calhoun
Captured2026-04-11T20:12:36.215Z UTC
Hash computed at2026-04-11T20:12:36.215Z UTC
SHA-256d717edc24d70125320ac4ca61ac236126b0cab9616bcad56647e63378869d69f
Content length703 bytes
Content preview (first 800 chars)
Hearings - Calendar | U.S. Senate Committee on Armed Services

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Russell Senate Building, Room 228 Washington, D.C., 20510

(202) 224-3871

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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.

Or POST the candidate content to /source/3576/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3576/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3576/receipt.json