← the record

Proof: Japan may add mention of nuclear subs to key security documents

The record — the exact bytes that were hashed

{"first_seen":"2026-10-07T02:11:07Z","headline":"Japan may add mention of nuclear subs to key security documents","kind":"front-page-headline","rank":1,"source":"kyodo","url":"https://english.kyodonews.net/articles/-/87368","v":1}

Download headline-ad778e3c78fe.json

SHA-256

ad778e3c78fe803bd92237441c3ac94b75c685765e4a4f34933926d25d73504f

OpenTimestamps

Confirmed in Bitcoin block 970275, mined 2026-10-07 02:46 UTC.

Download headline-ad778e3c78fe.json.ots

Wayback Machine

• The record pageCaptured 2026-10-07 02:12 UTC — view the capture.
• The story pageCaptured 2026-10-07 02:13 UTC — view the capture.

Check it yourself — none of this needs this site

1. Hash the record: sha256sum headline-ad778e3c78fe.json prints ad778e3c78fe803bd92237441c3ac94b75c685765e4a4f34933926d25d73504f. Its first twelve characters are the end of this record's address.
2. Drop headline-ad778e3c78fe.json and headline-ad778e3c78fe.json.ots onto opentimestamps.org, which checks the receipt against the Bitcoin block chain. Or, with the OpenTimestamps client and a Bitcoin node: ots verify headline-ad778e3c78fe.json.ots (ots upgrade first while the receipt is pending).
3. Open the Wayback Machine's captures above: the capture of the record page shows this hash as it stood then, and the capture of the story page shows the newsroom's own page.

Sealed automatically, 1 min after it was first seen.