Chain of custody receipt

Source #46100

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 — Open Center (2005-03-30)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Open%20Society%20Policy%20Center%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2005-03-30
EntityOpen Society Policy Center
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:45:55.076Z UTC
SHA-256090093a0839abd78d9c3682f7efe280ec82e5fdcea98ce3fa25e5550bbb215cc
Content length627 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001060559"
  ],
  "period_ending": "2004-12-31",
  "file_num": [
    "000-24699"
  ],
  "display_names": [
    "BRIGHT HORIZONS FAMILY SOLUTIONS INC  (CIK 0001060559)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2005-03-30",
  "biz_states": [
    "MA"
  ],
  "sics": [
    "8351"
  ],
  "form": "10-K",
  "adsh": "0000950144-05-003273",
  "film_num": [
    "05714429"
  ],
  "biz_locations": [
    "Watertown, MA"
  ],
  "file_type": "10-K",
  "file_description": "BRIGHT HORIZONS FAMILY SOLUTIONS, INC.- FORM 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/46100/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/46100/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/46100/receipt.json