Chain of custody receipt

Source #3109

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.

TitleGAO Report GAO-25-107469
Original URLhttps://www.federalregister.gov/documents/2025/01/08/2025-00118/office-of-federal-procurement-policy-federal-acquisition-regulation-pay-equity-and-transparency-in
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2023-12-31
EntityFederal Procurement Data System
Captured2026-04-08T19:59:50.881Z UTC
Hash computed at2026-04-08T19:59:50.881Z UTC
SHA-256aaa4adaa81f4adb8a37cb8982592069a7c49e42f56732b361253a9c0f56a184b
Content length25,367 bytes
Content preview (first 800 chars)
Federal Register

::

Office of Federal Procurement Policy; Federal Acquisition Regulation: Pay Equity and Transparency in Federal Contracting

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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/3109/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3109/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3109/receipt.json