Chain of custody receipt

Source #70535

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: 4 — HART JOHN (2013-12-23)
Original URLhttps://www.sec.gov/Archives/edgar/data/850579/000124649913000008/0001246499-13-000008-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2013-12-23
EntityJohn Hart
Captured2026-09-27T18:53:28.234Z UTC
Hash computed at2026-09-27T18:53:28.234Z UTC
SHA-2569c65f2d0d8db473739e626b70f76aceb1b9fd40f1f4cdc2893d209e040b93133
Content length674 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000850579",
    "0001246506"
  ],
  "period_ending": "2013-12-19",
  "file_num": [
    "000-25699"
  ],
  "display_names": [
    "PLX TECHNOLOGY INC  (CIK 0000850579)",
    "HART JOHN  (CIK 0001246506)"
  ],
  "xsl": "xslF345X03",
  "schema_version": "X0306",
  "sequence": 1,
  "root_forms": [
    "4"
  ],
  "file_date": "2013-12-23",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "3674"
  ],
  "form": "4",
  "adsh": "0001246499-13-000008",
  "film_num": [
    "131295885"
  ],
  "biz_locations": [
    "Sunnyvale, CA",
    ""
  ],
  "file_type": "4",
  "file_description": "PRIMARY DOCUMENT",
  "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/70535/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/70535/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/70535/receipt.json