Chain of custody receipt

Source #40695

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 — Jenny Yang (2010-09-20)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Jenny%20Yang%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2010-09-20
EntityJenny Yang
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-256dde5d8875e8f98be1dc755739dc7d828f5c6c1ff939e4f48da15ad7f04d46fab
Content length555 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001501225"
  ],
  "period_ending": null,
  "file_num": [
    "333-169494"
  ],
  "display_names": [
    "Zenitech Corp  (CIK 0001501225)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2010-09-20",
  "biz_states": [
    "DE"
  ],
  "sics": [
    "2673"
  ],
  "form": "S-1",
  "adsh": "0001415408-10-000491",
  "film_num": [
    "101081048"
  ],
  "biz_locations": [
    "Wilmington, DE"
  ],
  "file_type": "S-1",
  "file_description": "FORM S-1",
  "inc_states": [
    "DE"
  ],
  "items": []
}

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/40695/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40695/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40695/receipt.json