Chain of custody receipt

Source #65528

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: SC 13G — Duke University (2008-08-07)
Original URLhttps://www.sec.gov/Archives/edgar/data/909724/000114420408044497/0001144204-08-044497-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2008-08-07
EntityDuke University
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T04:01:54.211Z UTC
SHA-256a951f7d86cc8014de294dcc075790a2194ac29f616ff55f1e3f9bbe3a0ca9688
Content length670 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000909724",
    "0001439873"
  ],
  "period_ending": null,
  "file_num": [
    "005-46536"
  ],
  "display_names": [
    "TANDY LEATHER FACTORY INC  (TLF)  (CIK 0000909724)",
    "Duke University  (CIK 0001439873)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13G"
  ],
  "file_date": "2008-08-07",
  "biz_states": [
    "TX",
    "NC"
  ],
  "sics": [
    "3100"
  ],
  "form": "SC 13G",
  "adsh": "0001144204-08-044497",
  "film_num": [
    "08997865"
  ],
  "biz_locations": [
    "Ft Worth, TX",
    "Durham, NC"
  ],
  "file_type": "SC 13G",
  "file_description": null,
  "inc_states": [
    "DE",
    "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/65528/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/65528/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/65528/receipt.json