Chain of custody receipt

Source #65606

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: 10-K — Duke Energy Carolinas, LLC (2009-03-13)
Original URLhttps://www.sec.gov/Archives/edgar/data/30371/000119312509053898/0001193125-09-053898-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2009-03-13
EntityDuke Energy
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T05:12:30.100Z UTC
SHA-256d11345b381a5d0875107e04aac300262833031e1b43020fec1233c90fb3b7b5c
Content length577 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000030371"
  ],
  "period_ending": "2008-12-31",
  "file_num": [
    "001-04928"
  ],
  "display_names": [
    "Duke Energy Carolinas, LLC  (CIK 0000030371)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2009-03-13",
  "biz_states": [
    "NC"
  ],
  "sics": [
    "4911"
  ],
  "form": "10-K",
  "adsh": "0001193125-09-053898",
  "film_num": [
    "09680511"
  ],
  "biz_locations": [
    "Charlotte, NC"
  ],
  "file_type": "10-K",
  "file_description": "FORM 10-K",
  "inc_states": [
    "NC"
  ],
  "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/65606/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/65606/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/65606/receipt.json