Chain of custody receipt

Source #41203

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 — Syntropy (2012-03-28)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Syntropy%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2012-03-28
EntitySyntropy
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-2568b611e6bafcc080e7124bd0cb9cf8f0dbdb910f48d80c44258e88a0b80f7de09
Content length613 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001536893"
  ],
  "period_ending": null,
  "file_num": [
    "333-178547"
  ],
  "display_names": [
    "COSKATA, INC.  (CIK 0001536893)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2012-03-28",
  "biz_states": [
    "IL"
  ],
  "sics": [
    "2860"
  ],
  "form": "S-1/A",
  "adsh": "0001193125-12-137612",
  "film_num": [
    "12721352"
  ],
  "biz_locations": [
    "Warrenville, IL"
  ],
  "file_type": "EX-10.17",
  "file_description": "AMENDED & RESTATED BIO-PROPANOL JOINT DEVELOPMENT AGREEMENT",
  "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/41203/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41203/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41203/receipt.json