Chain of custody receipt

Source #49632

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 — Systems Planning and Analysis Inc. (2026-03-24)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Systems%20Planning%20and%20Analysis%20Inc.%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2026-03-24
EntitySystems Planning and Analysis Inc.
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T06:53:35.653Z UTC
SHA-256ff9a3c79a63847a0c95d806a84fdf47cdc21d74ad7350bd42c0ac4a1cbc49fa9
Content length555 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001944831"
  ],
  "period_ending": "2025-12-31",
  "file_num": [
    "814-01797"
  ],
  "display_names": [
    "Willow Tree Capital Corp  (CIK 0001944831)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2026-03-24",
  "biz_states": [
    "NY"
  ],
  "sics": [],
  "form": "10-K",
  "adsh": "0001944831-26-000004",
  "film_num": [
    "26785784"
  ],
  "biz_locations": [
    "New York, NY"
  ],
  "file_type": "10-K",
  "file_description": "10-K",
  "inc_states": [
    "MD"
  ],
  "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/49632/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/49632/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/49632/receipt.json