Chain of custody receipt

Source #2901

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.

TitleMultiple sources including Seoul Economic Daily
Original URLhttps://www.kedglobal.com/private-equity/newsView/ked202512040004
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date—
EntityHPSP
Captured2026-04-08T17:58:08.616Z UTC
Hash computed at2026-04-08T17:58:08.616Z UTC
SHA-256fae8e277b08bd1b8a407733aca4495ed16757e5b9c399615846f8428b5709ecb
Content length118 bytes
Content preview (first 800 chars) 
HPSP manufactures high-pressure hydrogen annealing (HPA) equipment and is the world's sole supplier of this technology

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/2901/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/2901/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/2901/receipt.json