← the record

Proof: October heat wave continues to bake California, breaking multiple temperature records

The record — the exact bytes that were hashed

{"first_seen":"2026-10-04T18:41:40Z","headline":"October heat wave continues to bake California, breaking multiple temperature records","kind":"front-page-headline","rank":1,"source":"abcnews","url":"https://abcnews.com/US/37-million-people-alert-dangerous-temperatures-october-heat/story?id=136984812","v":1}

Download headline-252fec4f2181.json

SHA-256

252fec4f2181e790946aed907185617af8a5a3a3808fbffbc815ecea6079c6d7

OpenTimestamps

Confirmed in Bitcoin block 969890, mined 2026-10-04 19:35 UTC.

Download headline-252fec4f2181.json.ots

Wayback Machine

• The record pageCaptured 2026-10-04 18:44 UTC — view the capture.
• The story pageCaptured 2026-10-04 19:02 UTC — view the capture.

Check it yourself — none of this needs this site

1. Hash the record: sha256sum headline-252fec4f2181.json prints 252fec4f2181e790946aed907185617af8a5a3a3808fbffbc815ecea6079c6d7. Its first twelve characters are the end of this record's address.
2. Drop headline-252fec4f2181.json and headline-252fec4f2181.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-252fec4f2181.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.