Chain of custody receipt

Source #64644

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: 10-K — DTE ENERGY CO (2026-02-17)
Original URLhttps://www.sec.gov/Archives/edgar/data/936340/000093634026000054/0000936340-26-000054-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2026-02-17
EntityDTE Energy
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T01:05:41.532Z UTC
SHA-256d398477cdba7e572b2e8feede2147a25a6e419f8fd7f2a2131b488f77626fc90
Content length717 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000936340",
    "0000028385"
  ],
  "period_ending": "2025-12-31",
  "file_num": [
    "001-11607",
    "001-02198"
  ],
  "display_names": [
    "DTE ENERGY CO  (DTB, DTE, DTG, DTK, DTW)  (CIK 0000936340)",
    "DTE Electric Co  (CIK 0000028385)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2026-02-17",
  "biz_states": [
    "MI"
  ],
  "sics": [
    "4911",
    "4911"
  ],
  "form": "10-K",
  "adsh": "0000936340-26-000054",
  "film_num": [
    "26636650",
    "26636651"
  ],
  "biz_locations": [
    "Detroit, MI",
    "Detroit, MI"
  ],
  "file_type": "10-K",
  "file_description": "10-K",
  "inc_states": [
    "MI",
    "MI"
  ],
  "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/64644/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/64644/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/64644/receipt.json