Chain of custody receipt

Source #10019

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 — Foundry (2017-02-15)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Foundry%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2017-02-15
EntityFoundry
Captured2026-04-13T22:43:43.615Z UTC
Hash computed at2026-04-13T22:43:43.615Z UTC
SHA-25641ebd919c49f92421c2b413d71da72c73016e605f4964c710b57de9d02d689d0
Content length70,915 bytes
Content preview (first 800 chars) 
{"took":503,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":10000,"relation":"gte"},"max_score":12.71916,"hits":[{"_index":"edgar_file","_id":"0001193125-17-043847:d347472dsc13ga.htm","_score":12.71916,"_source":{"ciks":["0001447599","0001644896"],"period_ending":null,"file_num":["005-88897"],"display_names":["FITBIT INC (CIK 0001447599)","Foundry Venture Capital 2007, L.P. (CIK 0001644896)"],"xsl":null,"sequence":1,"root_forms":["SC 13G"],"file_date":"2017-02-15","biz_states":["CA","CO"],"sics":["3571"],"form":"SC 13G/A","adsh":"0001193125-17-043847","film_num":["17611193"],"biz_locations":["San Francisco, CA","Boulder, CO"],"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/10019/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/10019/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/10019/receipt.json