Chain of custody receipt

Source #40199

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 — David Allen (2021-02-16)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22David%20Allen%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2021-02-16
EntityDavid Allen
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:15:17.880Z UTC
SHA-256c1b45d946995bfbc7bcb0d627c39948835a2741619c716e65400252ada7884dc
Content length642 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001493566",
    "0001616147"
  ],
  "period_ending": null,
  "file_num": [
    "005-88295"
  ],
  "display_names": [
    "OTONOMY, INC.  (CIK 0001493566)",
    "Weber David Allen  (CIK 0001616147)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "SC 13G"
  ],
  "file_date": "2021-02-16",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "2834"
  ],
  "form": "SC 13G/A",
  "adsh": "0001193125-21-045099",
  "film_num": [
    "21640232"
  ],
  "biz_locations": [
    "San Diego, CA",
    ""
  ],
  "file_type": "SC 13G/A",
  "file_description": "SC 13G/A",
  "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/40199/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40199/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40199/receipt.json