Chain of custody receipt

Source #66688

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: D/A — Greenfield Acquisition Partners VIII, L.P. (2018-04-20)
Original URLhttps://www.sec.gov/Archives/edgar/data/1688007/000095017218000072/0000950172-18-000072-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2018-04-20
EntityGreenfield Partners LLC
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T01:30:16.259Z UTC
SHA-256a61b78fb2b411f134c878ffcbc4a2e4f14208dba321dec68def8c8b998b6f36b
Content length632 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001688007"
  ],
  "period_ending": null,
  "file_num": [
    "021-274260"
  ],
  "display_names": [
    "Greenfield Acquisition Partners VIII, L.P.  (CIK 0001688007)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2018-04-20",
  "biz_states": [
    "CT"
  ],
  "sics": [],
  "form": "D/A",
  "adsh": "0000950172-18-000072",
  "film_num": [
    "18765834"
  ],
  "biz_locations": [
    "Westport, CT"
  ],
  "file_type": "D/A",
  "file_description": null,
  "inc_states": [
    "DE"
  ],
  "items": [
    "06B",
    "3C",
    "3C.7"
  ]
}

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/66688/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66688/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66688/receipt.json