Chain of custody receipt

Source #60857

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 — American Society of Anesthesiologists (2018-03-26)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22American%20Society%20of%20Anesthesiologists%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2018-03-26
EntityAmerican Society of Anesthesiologists
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-24T23:55:39.717Z UTC
SHA-25690ebf1aef3dce7545c5b0339625f043430008fee9a248d912b116ade2573caa0
Content length605 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0000764579"
  ],
  "period_ending": "2017-12-31",
  "file_num": [
    "000-13839"
  ],
  "display_names": [
    "CAS MEDICAL SYSTEMS INC  (CIK 0000764579)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2018-03-26",
  "biz_states": [
    "CT"
  ],
  "sics": [
    "3841"
  ],
  "form": "10-K",
  "adsh": "0001072613-18-000240",
  "film_num": [
    "18712382"
  ],
  "biz_locations": [
    "Branford, CT"
  ],
  "file_type": "10-K",
  "file_description": "FORM 10-K -- YEAR ENDED DECEMBER 31, 2017",
  "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/60857/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/60857/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/60857/receipt.json