Chain of custody receipt

Source #13873

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.

TitleBrookings Institution analysis
Original URLhttps://grokipedia.com/page/Emerson_Collective
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2020
EntityMichael Bloomberg
Captured2026-04-23T07:35:26.637Z UTC
Hash computed at2026-04-23T07:35:26.637Z UTC
SHA-256a188410e37b2cb363a4c3fe3db2594565d7b90efad4e6845cc3a1b0dca461007
Content length69 bytes
Content preview (first 800 chars) 
Bloomberg spent nearly $250 million on his 2020 presidential campaign

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/13873/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/13873/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/13873/receipt.json