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Proof: A fifth of Swiss Alpine ice has vanished in five years

The record — the exact bytes that were hashed

{"first_seen":"2026-10-01T07:10:42Z","headline":"A fifth of Swiss Alpine ice has vanished in five years","kind":"front-page-headline","rank":1,"source":"swissinfo","url":"https://www.swissinfo.ch/eng/glaciers-permafrost/a-fifth-of-swiss-alpine-ice-has-vanished-in-five-years/92132132","v":1}

Download headline-a6b49201ada7.json

SHA-256

a6b49201ada7b42b0d0f2f410630303d6d8d62dec56ed185fbfa15f774061b62

OpenTimestamps

Confirmed in Bitcoin block 969413, mined 2026-10-01 07:22 UTC.

Download headline-a6b49201ada7.json.ots

Wayback Machine

• The record pageCaptured 2026-10-01 07:12 UTC — view the capture.
• The story pageCaptured 2026-10-01 07:12 UTC — view the capture.

Check it yourself — none of this needs this site

1. Hash the record: sha256sum headline-a6b49201ada7.json prints a6b49201ada7b42b0d0f2f410630303d6d8d62dec56ed185fbfa15f774061b62. Its first twelve characters are the end of this record's address.
2. Drop headline-a6b49201ada7.json and headline-a6b49201ada7.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-a6b49201ada7.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.