Chain of custody receipt

Source #11017

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.

TitleFinancial reporting
Original URLhttps://www.marketplace.org/story/2026/03/13/cftc-considers-regulating-prediction-markets-like-kalshi
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2026-01-01
EntityKalshi
Captured2026-04-16T04:50:43.917Z UTC
Hash computed at2026-04-16T04:50:43.917Z UTC
SHA-256ad95a116dace6862aceb788c079ec6b1c928c7061c9c122486bae343cf4b8abc
Content length94 bytes
Content preview (first 800 chars) 
Kalshi achieved $11 billion valuation while Polymarket reached $9 billion valuation as of 2026

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/11017/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/11017/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/11017/receipt.json