Chain of custody receipt

Source #41323

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 — BlackRock Financial Management, Inc. (2019-07-03)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22BlackRock%20Financial%20Management%2C%20Inc.%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2019-07-03
EntityBlackRock Financial Management, Inc.
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-256fb19910042353e1a54afdf0ec9d359cab02713fff4ba79282e78ed8b480ed670
Content length585 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001772695"
  ],
  "period_ending": null,
  "file_num": [
    "333-232393"
  ],
  "display_names": [
    "Sunnova Energy International Inc.  (NOVA)  (CIK 0001772695)"
  ],
  "xsl": null,
  "sequence": 10,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2019-07-03",
  "biz_states": [
    "TX"
  ],
  "sics": [
    "4931"
  ],
  "form": "S-1/A",
  "adsh": "0001193125-19-189292",
  "film_num": [
    "19942533"
  ],
  "biz_locations": [
    "Houston, TX"
  ],
  "file_type": "EX-10.2",
  "file_description": "EX-10.2",
  "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/41323/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/41323/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/41323/receipt.json