Chain of custody receipt

Source #66393

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: 4 — HART JOHN (2017-11-30)
Original URLhttps://www.sec.gov/Archives/edgar/data/914025/000146325217000054/0001463252-17-000054-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2017-11-30
EntityJohn Hart
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-01T01:05:25.624Z UTC
SHA-25637366591b0f2e7289dbd0af239457305647cfc8653a1aef14bb7f2fd127bf217
Content length653 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001246506",
    "0000914025"
  ],
  "period_ending": "2017-11-29",
  "file_num": [
    "001-12696"
  ],
  "display_names": [
    "HART JOHN  (CIK 0001246506)",
    "PLANTRONICS INC /CA/  (CIK 0000914025)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "4"
  ],
  "file_date": "2017-11-30",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "3661"
  ],
  "form": "4",
  "adsh": "0001463252-17-000054",
  "film_num": [
    "171232398"
  ],
  "biz_locations": [
    "",
    "Santa Cruz, CA"
  ],
  "file_type": "EX-24",
  "file_description": "EDGAR SUPPORTING DOCUMENT",
  "inc_states": [
    "",
    "DE"
  ],
  "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/66393/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/66393/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/66393/receipt.json