Chain of custody receipt

Source #3164

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.

TitleHPSP company history page
Original URLhttps://www.theregister.com/2023/03/30/korea_passes_its_own_chips/
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2017-04-01
EntityHPSP
Captured2026-04-08T20:06:05.352Z UTC
Hash computed at2026-04-08T20:06:05.352Z UTC
SHA-256062d110470f8422c8cf3077b64f47270ea1bc57ccc2ee1dd614a85b0980dc647
Content length117 bytes
Content preview (first 800 chars) 
HPSP spun off from Poongsan Co., Ltd. in April 2017 after starting as Equipment Business Team of PSMC in October 2005

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/3164/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3164/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3164/receipt.json