Chain of custody receipt

Source #61794

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 (2011-02-22)
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
Date2011-02-22
EntityUnited Steelworkers
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T00:27:32.531Z UTC
SHA-25632f7d0195ffd5e5e232281e522125f7daa025dc8e34474e454e717e99dcf290b
Content length629 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001082510"
  ],
  "period_ending": "2010-12-31",
  "file_num": [
    "001-15052"
  ],
  "display_names": [
    "UIL HOLDINGS CORP  (CIK 0001082510)"
  ],
  "xsl": null,
  "sequence": 4,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2011-02-22",
  "biz_states": [
    "CT"
  ],
  "sics": [
    "4911"
  ],
  "form": "10-K",
  "adsh": "0001082510-11-000017",
  "film_num": [
    "11628757"
  ],
  "biz_locations": [
    "New Haven, CT"
  ],
  "file_type": "EX-10.28",
  "file_description": "UIL HOLDINGS CORPORATION EXHIBIT 10.28 - BERKSHIRE UNION AGREEMENT",
  "inc_states": [
    "CT"
  ],
  "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/61794/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61794/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61794/receipt.json