Chain of custody receipt

Source #63787

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 — Covington & Burling LLP (2011-08-02)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Covington%20%26%20Burling%20LLP%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2011-08-02
EntityCovington & Burling LLP
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-27T01:44:33.065Z UTC
SHA-256322a1a23d2fcff0aa318333774364556a96c01c575c14640fbdf8d7d76f7591d
Content length717 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001349436",
    "0001521168"
  ],
  "period_ending": null,
  "file_num": [
    "333-174492-01",
    "333-174492"
  ],
  "display_names": [
    "SANDRIDGE ENERGY INC  (SD)  (CIK 0001349436)",
    "SandRidge Permian Trust  (CIK 0001521168)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2011-08-02",
  "biz_states": [
    "OK",
    "TX"
  ],
  "sics": [
    "1311",
    "1311"
  ],
  "form": "S-1/A",
  "adsh": "0001047469-11-006850",
  "film_num": [
    "111003995",
    "111003994"
  ],
  "biz_locations": [
    "Oklahoma City, OK",
    "Austin, TX"
  ],
  "file_type": "S-1/A",
  "file_description": "S-1/A",
  "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/63787/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/63787/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/63787/receipt.json