Chain of custody receipt

Source #67664

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: SC 13D/A — Son Masayoshi (2008-03-03)
Original URLhttps://www.sec.gov/Archives/edgar/data/1313310/000095012708000083/0000950127-08-000083-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2008-03-03
EntityMasayoshi Son
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-06-02T04:56:03.826Z UTC
SHA-25642e86a505bba720f1776852cfa38443625692d0418a090b3615bf0eafa972460
Content length654 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001419737",
    "0001313310"
  ],
  "period_ending": null,
  "file_num": [
    "005-80768"
  ],
  "display_names": [
    "Son Masayoshi  (CIK 0001419737)",
    "GRAVITY Co., Ltd.  (GRVY)  (CIK 0001313310)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2008-03-03",
  "biz_states": [
    "M5"
  ],
  "sics": [
    "7389"
  ],
  "form": "SC 13D/A",
  "adsh": "0000950127-08-000083",
  "film_num": [
    "08660679"
  ],
  "biz_locations": [
    "Seoul, M5"
  ],
  "file_type": "SC 13D/A",
  "file_description": "SECOND AMENDMENT TO SCHEDULE 13D",
  "inc_states": [
    "M5"
  ],
  "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/67664/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/67664/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/67664/receipt.json