Chain of custody receipt

Source #76045

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 — First Digital Master Fund LP (2019-01-23)
Original URLhttps://www.sec.gov/Archives/edgar/data/1726650/000172665019000002/0001726650-19-000002-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2019-01-23
EntityFirst Principles Digital
Captured2026-09-28T16:21:24.714Z UTC
Hash computed at2026-09-28T16:21:24.714Z UTC
SHA-256d2319dcddd68b7259be876ac028af3c5a8f6b16941ba61ee1ccbe6879d2e4946
Content length622 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001726650"
  ],
  "period_ending": null,
  "file_num": [
    "021-303918"
  ],
  "display_names": [
    "First Digital Master Fund LP  (CIK 0001726650)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2019-01-23",
  "biz_states": [
    "CA"
  ],
  "sics": [],
  "form": "D/A",
  "adsh": "0001726650-19-000002",
  "film_num": [
    "19537413"
  ],
  "biz_locations": [
    "Santa Monica, CA"
  ],
  "file_type": "D/A",
  "file_description": null,
  "inc_states": [
    "DE"
  ],
  "items": [
    "06B",
    "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/76045/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/76045/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/76045/receipt.json