Chain of custody receipt

Source #61440

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 — Laborers Union (2013-04-01)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Laborers%20Union%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2013-04-01
EntityLaborers Union
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:13:11.841Z UTC
SHA-2562ac4282170e4bd0b9fb01eef6cc977b521716c624fb7b587facae778cc9849f3
Content length569 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000043350"
  ],
  "period_ending": "2012-12-31",
  "file_num": [
    "001-34585"
  ],
  "display_names": [
    "Gas Natural Inc.  (CIK 0000043350)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2013-04-01",
  "biz_states": [
    "MT"
  ],
  "sics": [
    "4924"
  ],
  "form": "10-K",
  "adsh": "0001193125-13-136685",
  "film_num": [
    "13731488"
  ],
  "biz_locations": [
    "Great Falls, MT"
  ],
  "file_type": "10-K",
  "file_description": "FORM 10-K",
  "inc_states": [
    "OH"
  ],
  "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/61440/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61440/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61440/receipt.json