Chain of custody receipt

Source #45196

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 — Masayoshi Son (2017-02-17)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Masayoshi%20Son%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2017-02-17
EntityMasayoshi Son
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:01:59.649Z UTC
SHA-256b24a1c6eaf66a0ed28f45d6c15970204bd57802dd5c89d9d497a2d3e309a95bb
Content length681 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001380393",
    "0001065521"
  ],
  "period_ending": null,
  "file_num": [
    "005-82793"
  ],
  "display_names": [
    "Fortress Investment Group LLC  (CIK 0001380393)",
    "SOFTBANK GROUP CORP  (CIK 0001065521)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2017-02-17",
  "biz_states": [
    "NY",
    "M0"
  ],
  "sics": [
    "6282"
  ],
  "form": "SC 13D",
  "adsh": "0001193125-17-047786",
  "film_num": [
    "17620931"
  ],
  "biz_locations": [
    "New York, NY",
    "Tokyo, M0"
  ],
  "file_type": "EX-99.5",
  "file_description": "JOINT FILING AGREEMENT",
  "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/45196/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45196/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45196/receipt.json