Chain of custody receipt

Source #47660

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 — Concentric Equity Partners (2017-04-10)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Concentric%20Equity%20Partners%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2017-04-10
EntityConcentric Equity Partners
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:14:36.745Z UTC
SHA-25675ed7686a3a826dcc746b59b3162591b1ac8487a7c17a85e4bca21e8d746a0c3
Content length578 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001694028"
  ],
  "period_ending": null,
  "file_num": [
    "333-216050"
  ],
  "display_names": [
    "Liberty Oilfield Services Inc.  (LBRT)  (CIK 0001694028)"
  ],
  "xsl": null,
  "sequence": 4,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2017-04-10",
  "biz_states": [
    "CO"
  ],
  "sics": [
    "1389"
  ],
  "form": "S-1/A",
  "adsh": "0001193125-17-118739",
  "film_num": [
    "17754244"
  ],
  "biz_locations": [
    "Denver, CO"
  ],
  "file_type": "EX-4.1",
  "file_description": "EX-4.1",
  "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/47660/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/47660/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/47660/receipt.json