Chain of custody receipt

Source #65530

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.

TitleSEC EDGAR: 10-K — AFLAC INC (2023-02-24)
Original URLhttps://www.sec.gov/Archives/edgar/data/4977/000000497723000055/0000004977-23-000055-index.htm
PublicationSEC EDGAR
Source typesec_filing
Date2023-02-24
EntityAFLAC Inc
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-31T04:08:16.653Z UTC
SHA-25662e39f18d0d1a6e8b063ef0e17dd4136023d47efbad0abed8aba2a0ae7a86fdc
Content length569 bytes
Content preview (first 800 chars) 
{
  "ciks": [
    "0000004977"
  ],
  "period_ending": "2022-12-31",
  "file_num": [
    "001-07434"
  ],
  "display_names": [
    "AFLAC INC  (AFL)  (CIK 0000004977)"
  ],
  "xsl": null,
  "sequence": 5,
  "root_forms": [
    "10-K"
  ],
  "file_date": "2023-02-24",
  "biz_states": [
    "GA"
  ],
  "sics": [
    "6321"
  ],
  "form": "10-K",
  "adsh": "0000004977-23-000055",
  "film_num": [
    "23662001"
  ],
  "biz_locations": [
    "Columbus, GA"
  ],
  "file_type": "EX-10.34",
  "file_description": "EX-10.34",
  "inc_states": [
    "GA"
  ],
  "items": []
}

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/65530/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/65530/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/65530/receipt.json