Chain of custody receipt

Source #73079

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 13G — Betta Investment (Hong Kong) Ltd. (2024-01-12)
Original URLhttps://www.sec.gov/Archives/edgar/data/1662579/000119312524007490/0001193125-24-007490-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2024-01-12
EntityBringing Everyone Together Through Advocacy
Captured2026-09-28T12:53:11.754Z UTC
Hash computed at2026-09-28T12:53:11.754Z UTC
SHA-256500dd75299575a9272524fabe7ae4391f16bc1e62921d05f9fd258b81207d953
Content length700 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001662579",
    "0001990727"
  ],
  "period_ending": null,
  "file_num": [
    "005-91763"
  ],
  "display_names": [
    "C4 Therapeutics, Inc.  (CCCC)  (CIK 0001662579)",
    "Betta Investment (Hong Kong) Ltd.  (CIK 0001990727)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13G"
  ],
  "file_date": "2024-01-12",
  "biz_states": [
    "MA",
    "F4"
  ],
  "sics": [
    "2836"
  ],
  "form": "SC 13G",
  "adsh": "0001193125-24-007490",
  "film_num": [
    "24532040"
  ],
  "biz_locations": [
    "Watertown, MA",
    "Yuhang, Hangzhou, F4"
  ],
  "file_type": "SC 13G",
  "file_description": "SC 13G",
  "inc_states": [
    "DE",
    "F4"
  ],
  "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/73079/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/73079/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/73079/receipt.json