Chain of custody receipt

Source #45097

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 — Brian Smith (2015-10-13)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Brian%20Smith%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2015-10-13
EntityBrian Smith
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:01:59.649Z UTC
SHA-256a3f04ca5728b9e88b87f47113844da1e16afa82490441d3c2e427d3b4d07744c
Content length584 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001654985"
  ],
  "period_ending": null,
  "file_num": [
    "021-249206"
  ],
  "display_names": [
    "Numeracy, Inc.  (CIK 0001654985)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0707",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2015-10-13",
  "biz_states": [
    "CA"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001654985-15-000002",
  "film_num": [
    "151155503"
  ],
  "biz_locations": [
    "San Francisco, CA"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "DE"
  ],
  "items": [
    "06B"
  ]
}

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/45097/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/45097/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/45097/receipt.json