Chain of custody receipt

Source #61798

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 — United Steelworkers (2021-03-09)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22United%20Steelworkers%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2021-03-09
EntityUnited Steelworkers
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:27:32.624Z UTC
SHA-256099df37c006aa19185a7d6aa6f661e392f3a2f741053fbad6b84a156134565b2
Content length572 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000095953"
  ],
  "period_ending": "2020-12-31",
  "file_num": [
    "001-05200"
  ],
  "display_names": [
    "SYNALLOY CORP  (ACNT)  (CIK 0000095953)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2021-03-09",
  "biz_states": [
    "VA"
  ],
  "sics": [
    "3317"
  ],
  "form": "10-K",
  "adsh": "0000095953-21-000032",
  "film_num": [
    "21726173"
  ],
  "biz_locations": [
    "Richmond, VA"
  ],
  "file_type": "EX-10.9",
  "file_description": "EX-10.9",
  "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/61798/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61798/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61798/receipt.json