Chain of custody receipt

Source #61192

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 — DTE Energy (2018-02-16)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22DTE%20Energy%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2018-02-16
EntityDTE Energy
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-24T23:57:24.171Z UTC
SHA-2562dbc775d2ac3490c122919dcb4f1ac2adaf4f0f746d373b240e03609a36a9243
Content length728 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000936340",
    "0000028385"
  ],
  "period_ending": "2017-12-31",
  "file_num": [
    "001-11607",
    "001-02198"
  ],
  "display_names": [
    "DTE ENERGY CO  (DTB, DTE, DTG, DTW)  (CIK 0000936340)",
    "DTE Electric Co  (CIK 0000028385)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2018-02-16",
  "biz_states": [
    "MI"
  ],
  "sics": [
    "4911",
    "4911"
  ],
  "form": "10-K",
  "adsh": "0000936340-18-000082",
  "film_num": [
    "18620047",
    "18620048"
  ],
  "biz_locations": [
    "Detroit, MI",
    "Detroit, MI"
  ],
  "file_type": "10-K",
  "file_description": "DTE ENERGY FORM 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/61192/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61192/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61192/receipt.json