Chain of custody receipt

Source #12071

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 EDGAR: filing — Amentum Services Inc. (2025-11-25)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Amentum%20Services%20Inc.%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2025-11-25
EntityAmentum Services Inc.
Captured2026-04-23T06:27:17.786Z UTC
Hash computed at2026-04-23T06:27:17.786Z UTC
SHA-25677487eee9d9b7615cebcd4ab6cc2921025a174295faf4fdc2f51688d479a759a
Content length15,025 bytes
Content preview (first 800 chars)
{"took":3735,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":25,"relation":"eq"},"max_score":13.510338,"hits":[{"_index":"edgar_file","_id":"0001628280-25-053993:amtm100325ex211.htm","_score":13.510338,"_source":{"ciks":["0002011286"],"period_ending":"2025-10-03","file_num":["001-42176"],"display_names":["Amentum Holdings, Inc. (AMTM) (CIK 0002011286)"],"xsl":null,"sequence":"2","root_forms":["10-K"],"file_date":"2025-11-25","biz_states":["VA"],"sics":["7389"],"form":"10-K","adsh":"0001628280-25-053993","film_num":["251521708"],"biz_locations":["Chantilly…

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/12071/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/12071/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/12071/receipt.json