Chain of custody receipt

Source #3921

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 — Facebook Technologies LLC (2021-01-28)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Facebook%20Technologies%20LLC%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2021-01-28
EntityFacebook Technologies LLC
Captured2026-04-12T01:48:16.697Z UTC
Hash computed at2026-04-12T01:48:16.697Z UTC
SHA-256ede07e39c035e4e45324ef9af204991f774ce08e938829f13ba28da4ad45824b
Content length3,430 bytes
Content preview (first 800 chars)
{"took":941,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":4,"relation":"eq"},"max_score":14.23056,"hits":[{"_index":"edgar_file","_id":"0001326801-21-000014:fb-12312020x10kexhibit211.htm","_score":14.23056,"_source":{"ciks":["0001326801"],"period_ending":"2020-12-31","file_num":["001-35551"],"display_names":["Facebook Inc (META) (CIK 0001326801)"],"xsl":null,"sequence":3,"root_forms":["10-K"],"file_date":"2021-01-28","biz_states":["CA"],"sics":["7370"],"form":"10-K","adsh":"0001326801-21-000014","film_num":["21561789"],"biz_locations":["Menlo Park…

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/3921/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3921/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3921/receipt.json