Chain of custody receipt

Source #61553

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 — National Workers (2010-07-23)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22National%20Union%20of%20Healthcare%20Workers%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2010-07-23
EntityNational Union of Healthcare Workers
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:20:48.128Z UTC
SHA-2564c6bbca31523fee9a1877d71adcd47f70721ea7dc25225bb1d753911cb599b26
Content length574 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001491041"
  ],
  "period_ending": null,
  "file_num": [
    "333-166671"
  ],
  "display_names": [
    "Liberty Mutual Agency Corp  (CIK 0001491041)"
  ],
  "xsl": null,
  "sequence": 128,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2010-07-23",
  "biz_states": [
    "MA"
  ],
  "sics": [
    "6331"
  ],
  "form": "S-1/A",
  "adsh": "0000950123-10-067715",
  "film_num": [
    "10967584"
  ],
  "biz_locations": [
    "Boston, MA"
  ],
  "file_type": "EX-10.137",
  "file_description": "EX-10.137",
  "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/61553/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61553/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61553/receipt.json