Chain of custody receipt

Source #62199

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 — Idaho Power (2011-02-23)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Idaho%20Power%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2011-02-23
EntityIdaho Power
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T02:35:30.109Z UTC
SHA-256c3382c649fdaf952e2e2ea57aaa43d997cd1a908dab10e6b80611c1ca4fd0a64
Content length688 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000049648",
    "0001057877"
  ],
  "period_ending": "2010-12-31",
  "file_num": [
    "001-03198",
    "001-14465"
  ],
  "display_names": [
    "IDAHO POWER CO  (CIK 0000049648)",
    "IDACORP INC  (IDA)  (CIK 0001057877)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2011-02-23",
  "biz_states": [
    "ID"
  ],
  "sics": [
    "4911",
    "4911"
  ],
  "form": "10-K",
  "adsh": "0001057877-11-000047",
  "film_num": [
    "11630568",
    "11630567"
  ],
  "biz_locations": [
    "Boise, ID",
    "Boise, ID"
  ],
  "file_type": "10-K",
  "file_description": null,
  "inc_states": [
    "ID",
    "ID"
  ],
  "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/62199/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/62199/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/62199/receipt.json