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Proof: Nishikori loses in 1st round at Japan Open tennis swan song

The record — the exact bytes that were hashed

{"first_seen":"2026-10-01T11:22:18Z","headline":"Nishikori loses in 1st round at Japan Open tennis swan song","kind":"front-page-headline","rank":1,"source":"kyodo","url":"https://english.kyodonews.net/articles/-/86908","v":1}

Download headline-b78eaf22a943.json

SHA-256

b78eaf22a943ef687763df69d972d734fbebffcd06b03cd4ac1d697359a9711a

OpenTimestamps

Confirmed in Bitcoin block 969451, mined 2026-10-01 14:00 UTC.

Download headline-b78eaf22a943.json.ots

Wayback Machine

• The record pageCaptured 2026-10-01 11:27 UTC — view the capture.
• The story pageCaptured 2026-10-01 11:27 UTC — view the capture.

Check it yourself — none of this needs this site

1. Hash the record: sha256sum headline-b78eaf22a943.json prints b78eaf22a943ef687763df69d972d734fbebffcd06b03cd4ac1d697359a9711a. Its first twelve characters are the end of this record's address.
2. Drop headline-b78eaf22a943.json and headline-b78eaf22a943.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-b78eaf22a943.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, 5 min after it was first seen.