Chain of custody receipt

Source #71163

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: SC 13D/A — TripAdvisor, Inc. (2021-03-24)
Original URLhttps://www.sec.gov/Archives/edgar/data/1526520/000110465921041031/0001104659-21-041031-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2021-03-24
EntityTechnology Research & Innovation PAC
Captured2026-09-28T11:48:30.125Z UTC
Hash computed at2026-09-28T11:48:30.125Z UTC
SHA-2565a6eebd7db88137b259fe2a446cb33d2dee1455ac1db23ff5348f0cca7d669b2
Content length731 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001526520",
    "0001606745"
  ],
  "period_ending": null,
  "file_num": [
    "005-86536"
  ],
  "display_names": [
    "TripAdvisor, Inc.  (TRIP)  (CIK 0001526520)",
    "Liberty TripAdvisor Holdings, Inc.  (LTRPA, LTRPB)  (CIK 0001606745)"
  ],
  "xsl": null,
  "sequence": 2,
  "root_forms": [
    "SC 13D"
  ],
  "file_date": "2021-03-24",
  "biz_states": [
    "MA",
    "CO"
  ],
  "sics": [
    "7370",
    "7374"
  ],
  "form": "SC 13D/A",
  "adsh": "0001104659-21-041031",
  "film_num": [
    "21769283"
  ],
  "biz_locations": [
    "Needham, MA",
    "Englewood, CO"
  ],
  "file_type": "EX-99.7(F)",
  "file_description": "EXHIBIT 99.7(F)",
  "inc_states": [
    "DE",
    "CO"
  ],
  "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/71163/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/71163/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/71163/receipt.json