Chain of custody receipt

Source #10281

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.

TitleSEC Form 8-K filings documenting subsidiary creation and renaming
Original URLhttps://investors.leidos.com/node/8391/html
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2016-08-16
EntityAbacus Innovations Corporation
Captured2026-04-14T01:14:35.730Z UTC
Hash computed at2026-04-14T01:14:35.730Z UTC
SHA-256860226f325a0ef20dadfde50377b9ac3ccf7ba8b5b682582e3d6f6906f992d4c
Content length176 bytes
Content preview (first 800 chars) 
Abacus Innovations Corporation was created as a wholly-owned subsidiary of Lockheed Martin to facilitate the transaction and was later renamed to Leidos Innovations Corporation

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/10281/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/10281/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/10281/receipt.json