Chain of custody receipt

Source #65479

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 — COOPER CAMERON CORP (2006-03-06)
Original URLhttps://www.sec.gov/Archives/edgar/data/941548/000095012906002299/0000950129-06-002299-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2006-03-06
EntityCameron Holdings
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T03:57:08.682Z UTC
SHA-256499563081ddf1cf6024c2f0ae2feb15f7580170c0c3fe6bd952060cfaf438f8b
Content length589 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000941548"
  ],
  "period_ending": "2005-12-31",
  "file_num": [
    "001-13884"
  ],
  "display_names": [
    "COOPER CAMERON CORP  (CIK 0000941548)"
  ],
  "xsl": null,
  "sequence": 12,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2006-03-06",
  "biz_states": [
    "TX"
  ],
  "sics": [
    "3533"
  ],
  "form": "10-K",
  "adsh": "0000950129-06-002299",
  "film_num": [
    "06668151"
  ],
  "biz_locations": [
    "Houston, TX"
  ],
  "file_type": "EX-21.1",
  "file_description": "SUBSIDIARIES OF REGISTRANT",
  "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/65479/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/65479/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/65479/receipt.json