Chain of custody receipt

Source #41227

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 — PDFTron Systems (2021-03-05)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22PDFTron%20Systems%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2021-03-05
EntityPDFTron Systems
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-2567467c02887212834665fa47fa1c2518a4b828a7bf58f115ced1994200db4b22d
Content length570 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001464963"
  ],
  "period_ending": "2020-12-31",
  "file_num": [
    "814-00789"
  ],
  "display_names": [
    "First Eagle Alternative Capital BDC, Inc.  (CIK 0001464963)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2021-03-05",
  "biz_states": [
    "MA"
  ],
  "sics": [],
  "form": "10-K",
  "adsh": "0001564590-21-011016",
  "film_num": [
    "21715485"
  ],
  "biz_locations": [
    "Boston, MA"
  ],
  "file_type": "10-K",
  "file_description": "10-K",
  "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/41227/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41227/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41227/receipt.json