Chain of custody receipt

Source #15984

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 — Reid Hoffman (2016-02-11)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Reid%20Hoffman%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2016-02-11
EntityReid Hoffman
Captured2026-04-23T09:20:46.474Z UTC
Hash computed at2026-04-23T09:20:46.474Z UTC
SHA-2561ed4b2d2b5cd0fa8bab27764a8252e19a8b9cc3ba85b3798500c6ef2cc198021
Content length70,860 bytes
Content preview (first 800 chars) 
{"took":3156,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":234,"relation":"eq"},"max_score":24.363798,"hits":[{"_index":"edgar_file","_id":"0001104659-16-095942:a16-3476_1sc13ga.htm","_score":24.363798,"_source":{"ciks":["0001271024","0001521103"],"period_ending":null,"file_num":["005-86263"],"display_names":["LINKEDIN CORP (CIK 0001271024)","Reid Hoffman & Michelle Yee Living Trust (CIK 0001521103)"],"xsl":null,"sequence":1,"root_forms":["SC 13G"],"file_date":"2016-02-11","biz_states":["CA"],"sics":["7370"],"form":"SC 13G/A","adsh":"0001104659-16-095942","film_num":["161411756"],"biz_locations":["Mountain View, CA","Mountain View, CA"],"file_type":"SC 13G/A","file_description":"SC…

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/15984/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/15984/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/15984/receipt.json