Chain of custody receipt

Source #42083

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 — Paul Graham (2008-06-03)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Paul%20Graham%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2008-06-03
EntityPaul Graham
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:10:53.003Z UTC
SHA-25697b9f9b6dce6585afbe3df0b6b0cc6ce9d2c7416107aaf5a60ab625d52567ce8
Content length694 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001056794",
    "0001418509"
  ],
  "period_ending": "2008-05-30",
  "file_num": [
    "000-29175"
  ],
  "display_names": [
    "AVANEX CORP  (CIK 0001056794)",
    "SMITH PAUL GRAHAM  (CIK 0001418509)"
  ],
  "xsl": "xslF345X02",
  "schema_version": "X0202",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2008-06-03",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "3674"
  ],
  "form": "4",
  "adsh": "0001181431-08-036228",
  "film_num": [
    "08877121"
  ],
  "biz_locations": [
    "Fremont, CA"
  ],
  "file_type": "4",
  "file_description": "STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP ON FORM 4",
  "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/42083/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/42083/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/42083/receipt.json