Chain of custody receipt

Source #66794

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 — Lightning Labs, Inc. (2018-04-18)
Original URLhttps://www.sec.gov/Archives/edgar/data/1737676/000173767618000001/0001737676-18-000001-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2018-04-18
EntityLightning Labs
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T01:40:38.600Z UTC
SHA-2562d8384af1025f7801b140a713bd102f788b61d0fb6f3f90273822d7a96aae36a
Content length585 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001737676"
  ],
  "period_ending": null,
  "file_num": [
    "021-310511"
  ],
  "display_names": [
    "Lightning Labs, Inc.  (CIK 0001737676)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2018-04-18",
  "biz_states": [
    "CA"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001737676-18-000001",
  "film_num": [
    "18761817"
  ],
  "biz_locations": [
    "Palo Alto, CA"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "DE"
  ],
  "items": [
    "06B"
  ]
}

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/66794/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66794/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66794/receipt.json