Chain of custody receipt

Source #40687

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 — Electronic Privacy Information Center (2021-03-26)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Electronic%20Privacy%20Information%20Center%20(EPIC)%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2021-03-26
EntityElectronic Privacy Information Center (EPIC)
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:13:47.632Z UTC
SHA-256ada372116656f5f3318920b225c7c80c6dfbadbdf015175421d047f6970bf223
Content length567 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0001845734"
  ],
  "period_ending": null,
  "file_num": [
    "333-254795"
  ],
  "display_names": [
    "Silverman Acquisition Corp I  (CIK 0001845734)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2021-03-26",
  "biz_states": [
    "NY"
  ],
  "sics": [
    "6770"
  ],
  "form": "S-1",
  "adsh": "0001104659-21-042574",
  "film_num": [
    "21778532"
  ],
  "biz_locations": [
    "New York, NY"
  ],
  "file_type": "S-1",
  "file_description": "FORM S-1",
  "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/40687/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/40687/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/40687/receipt.json