Chain of custody receipt

Source #47172

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.

TitleSEARCH_ERROR: Systems Planning and Analysis Inc. not found in usaspending
Original URL(none — typed-API result with no web URL)
PublicationPipeline — search validation (usaspending)
Source typeclaim_flag
Date2026-05-10
EntitySystems Planning and Analysis Inc.
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T04:18:48.919Z UTC
SHA-2568e61e88ba5f7cffc8fdba026102944dd75c96dca780c2dd5f46bbe3675a7d635
Content length294 bytes
Content preview (first 800 chars) 
Entity Systems Planning and Analysis Inc. is expected to appear in usaspending (matches profile: usaspending, sam_gov, opencorporates). Null result likely indicates query mismatch (legal-name variant, subsidiary, or wrong identifier). No alternate identifiers stored — manual review required.

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/47172/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/47172/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/47172/receipt.json