Chain of custody receipt

Source #45176

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 — Center Safety (2021-03-19)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Center%20for%20AI%20Safety%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2021-03-19
EntityCenter for AI Safety
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:01:59.649Z UTC
SHA-2562e598cf5d2974e98344c002886e862a1f42c4027052f40fd0b06e8639e49c7e4
Content length567 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000701985"
  ],
  "period_ending": "2021-01-30",
  "file_num": [
    "001-08344"
  ],
  "display_names": [
    "L Brands, Inc.  (BBWI)  (CIK 0000701985)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2021-03-19",
  "biz_states": [
    "OH"
  ],
  "sics": [
    "5621"
  ],
  "form": "10-K",
  "adsh": "0000701985-21-000011",
  "film_num": [
    "21758955"
  ],
  "biz_locations": [
    "Columbus, OH"
  ],
  "file_type": "10-K",
  "file_description": "10-K",
  "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/45176/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45176/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45176/receipt.json