Chain of custody receipt

Source #40263

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 — Bureau of Industry and Security (BIS) (2011-02-16)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Bureau%20of%20Industry%20and%20Security%20(BIS)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2011-02-16
EntityBureau of Industry and Security (BIS)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:15:17.880Z UTC
SHA-2561ae7aa529d6d098bb4b3406e0ed8a6f7e49b19a916b10412b4def99c89befc5e
Content length567 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000880177"
  ],
  "period_ending": null,
  "file_num": [
    "333-170711"
  ],
  "display_names": [
    "PEREGRINE SEMICONDUCTOR CORP  (CIK 0000880177)"
  ],
  "xsl": null,
  "sequence": 28,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2011-02-16",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "3674"
  ],
  "form": "S-1/A",
  "adsh": "0001193125-11-037642",
  "film_num": [
    "11616837"
  ],
  "biz_locations": [
    "San Diego, CA"
  ],
  "file_type": "COVER",
  "file_description": null,
  "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/40263/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40263/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40263/receipt.json