Chain of custody receipt

Source #10222

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.

TitleOpenSecrets FEC filings
Original URLhttps://en.wikipedia.org/wiki/DARPA
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2024-12-31
EntityBooz Allen Hamilton
Captured2026-04-14T01:09:45.984Z UTC
Hash computed at2026-04-14T01:09:45.984Z UTC
SHA-256c435d4112712b0d59ea88a6aa51b0f5e6f3eea60288b85b78a28b1156aac8b35
Content length118,769 bytes
Content preview (first 800 chars)
DARPA - Wikipedia

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Contents

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(Top)

1

History

Toggle History subsection

1.1

Early history (1958–1969)

1.2

Later history (1970–1980)

1.3

Recent history (1981–present)

2

Organization

Toggle Organization subsection

2.1

Current program offices

2.2

Former offices

2.3

Directors

3

Projects

Toggle Projects subsection

3.1

Active projects

3.2

Undated Programs

3.3

Past or transitioned…

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/10222/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/10222/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/10222/receipt.json