Chain of custody receipt

Source #42008

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 — NXP Semiconductors (2022-02-24)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22NXP%20Semiconductors%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2022-02-24
EntityNXP Semiconductors
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:10:53.003Z UTC
SHA-256c211403471600fc1da24ecf4add60671f1f9d856b46621bb901971ed330817dd
Content length536 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001413447"
  ],
  "period_ending": "2021-12-31",
  "file_num": [
    "001-34841"
  ],
  "display_names": [
    "NXP Semiconductors N.V.  (NXPI)  (CIK 0001413447)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2022-02-24",
  "biz_states": [],
  "sics": [
    "3674"
  ],
  "form": "10-K",
  "adsh": "0001413447-22-000008",
  "film_num": [
    "22666317"
  ],
  "biz_locations": [],
  "file_type": "EX-21.1",
  "file_description": "EX-21.1",
  "inc_states": [],
  "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/42008/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/42008/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/42008/receipt.json