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Proof: Sapporo, Nagoya, Osaka and Fukuoka meet secondary capital criteria

The record — the exact bytes that were hashed

{"first_seen":"2026-10-03T02:10:13Z","headline":"Sapporo, Nagoya, Osaka and Fukuoka meet secondary capital criteria","kind":"front-page-headline","rank":1,"source":"japantimes","url":"https://www.japantimes.co.jp/news/2026/10/03/japan/politics/hokkaido-aichi-osaka-fukuoka-secondary-capital/","v":1}

Download headline-f30f52442969.json

SHA-256

f30f524429691ff3d45cd26b012d02940174b5d6c5337af594398e204d5d669c

OpenTimestamps

Confirmed in Bitcoin block 969657, mined 2026-10-03 02:18 UTC.

Download headline-f30f52442969.json.ots

Wayback Machine

• The record pageCaptured 2026-10-03 02:12 UTC — view the capture.
• The story pageCaptured 2026-10-03 02:13 UTC — view the capture.

Check it yourself — none of this needs this site

1. Hash the record: sha256sum headline-f30f52442969.json prints f30f524429691ff3d45cd26b012d02940174b5d6c5337af594398e204d5d669c. Its first twelve characters are the end of this record's address.
2. Drop headline-f30f52442969.json and headline-f30f52442969.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-f30f52442969.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, 2 min after it was first seen.