Chain of custody receipt

Source #5663

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 — Greylock Partners (2014-09-30)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Greylock%20Partners%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2014-09-30
EntityGreylock Partners
Captured2026-04-12T23:08:55.321Z UTC
Hash computed at2026-04-12T23:08:55.321Z UTC
SHA-256af02456a216b6c6c0ce8045a742ef31dbcc5087decace9e0af7a0099c8b964e0
Content length64,908 bytes
Content preview (first 800 chars)
{"took":122,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":516,"relation":"eq"},"max_score":18.76663,"hits":[{"_index":"edgar_file","_id":"0001209191-12-031451:doc4.xml","_score":18.76663,"_source":{"ciks":["0001392138","0001364962"],"period_ending":"2012-05-30","file_num":["001-35338"],"display_names":["Chandna Asheem (CIK 0001392138)","IMPERVA INC (CIK 0001364962)"],"xsl":"xslF345X03","schema_version":"X0305","sequence":1,"root_forms":["4"],"file_date":"2012-05-31","biz_states":["CA"],"sics":["7372"],"form":"4","adsh":"0001209191-12-031451","film_num":["12881552"],"biz_locations":["","Redwood Shores, CA"],"file_type":"4","file_description":"FORM 4…

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/5663/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/5663/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/5663/receipt.json