Chain of custody receipt

Source #105

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.

TitleResearch: Crescendo Equity Partners - FEC donations
Original URLhttps://www.fec.gov/data/receipts/?contributor_name=Crescendo%20Equity%20Partners
PublicationPublic Record Research
Source typeweb_search
Date2024
EntityCrescendo Equity Partners
Captured2026-04-05T07:50:29.025Z UTC
Hash computed at2026-04-05T07:50:29.025Z UTC
SHA-256de78361be0523882854e0f50871529e0a78208a14286bab68af40f13ce723d7e
Content length8,705 bytes
Content preview (first 800 chars)
Browse Receipts | FEC

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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/105/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/105/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/105/receipt.json