Chain of custody receipt

Source #66420

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 — Essex Flexport Fund, L.P. (2012-11-02)
Original URLhttps://www.sec.gov/Archives/edgar/data/1461594/000089457912000295/0000894579-12-000295-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2012-11-02
EntityFlexport
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T01:09:07.247Z UTC
SHA-256dcd7aa1f47ddfcd6421f0a0d2128b4930ef1f67431914fa7a33cdab81110b49c
Content length613 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001461594"
  ],
  "period_ending": null,
  "file_num": [
    "021-149787"
  ],
  "display_names": [
    "Essex Flexport Fund, L.P.  (CIK 0001461594)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0706",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2012-11-02",
  "biz_states": [
    "MA"
  ],
  "sics": [],
  "form": "D/A",
  "adsh": "0000894579-12-000295",
  "film_num": [
    "121177150"
  ],
  "biz_locations": [
    "Boston, MA"
  ],
  "file_type": "D/A",
  "file_description": null,
  "inc_states": [
    "MA"
  ],
  "items": [
    "06",
    "3C",
    "3C.1"
  ]
}

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/66420/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66420/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66420/receipt.json