Chain of custody receipt

Source #61997

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 — AAOS (2015-04-06)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22American%20Assn%20of%20Orthopaedic%20Surgeons%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2015-04-06
EntityAmerican Assn of Orthopaedic Surgeons
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-25T02:32:50.873Z UTC
SHA-256a05dacf38197b5d85e0ebf4d3f218e8a4fe53cf743211e60929b07b5a6c91702
Content length598 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001348911"
  ],
  "period_ending": null,
  "file_num": [
    "333-201278"
  ],
  "display_names": [
    "Carbylan Therapeutics, Inc.  (KALV)  (CIK 0001348911)"
  ],
  "xsl": null,
  "sequence": 1,
  "root_forms": [
    "S-1"
  ],
  "file_date": "2015-04-06",
  "biz_states": [
    "CA"
  ],
  "sics": [
    "2834"
  ],
  "form": "S-1/A",
  "adsh": "0001193125-15-119335",
  "film_num": [
    "15752425"
  ],
  "biz_locations": [
    "Palo Alto, CA"
  ],
  "file_type": "S-1/A",
  "file_description": "AMENDMENT NO. 2 TO 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/61997/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/61997/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/61997/receipt.json