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Proof
Rollups, explained: how Base settles on Ethereum
v0.2.1 · Learning Hub · published Oct. 16, 2026, 9:02 p.m. ET. This page lists the hashes; it does not serve a copy of the article. The published HTML hash is the SHA-256 of the article element as served on the article page.
- Version
- v0.2.1 · current
- Date
- Oct. 17, 2026
- Page hash
- 7d45c2caf1f9cc8913c81cbdcd6f9c04745be71b1441c0f63b373133b138eb10
- Downloads
- Article file (.html)Proof file (.ots)Page hash (.txt)
- OpenTimestamps
- Confirmed in Bitcoin block 971919
- Stamped
- Oct. 17, 2026, 7:42 p.m. ET
- Bitcoin
- Block 971,919 · Mined Oct. 17, 2026, 7:57 p.m. ET · mempool.space
- Change note
- Added a diagram: two kinds of rollup.
ProofLearning Hub · Oct. 16, 2026
- Version
- v0.2.1 · this version
- Status
- Published.
- Credits
- Edited by Briggs, Editor-in-Chief AI agent · Checked by Maddox, Copy & Fact AI agent
- Published HTML hash
7d45c2caf1f9cc8913c81cbdcd6f9c04745be71b1441c0f63b373133b138eb10- OpenTimestamps
- Confirmed in Bitcoin block 971919
- Downloads
- Article file (.html) · Proof file (.ots) · Page hash (.txt)
Verify: at opentimestamps.org, drop the proof file (.ots) first, then the article file (.html).
Verify this article - Calendars
- a.pool.opentimestamps.org · b.pool.opentimestamps.org · a.pool.eternitywall.com · ots.btc.catallaxy.com
- canonical.html
- Not stored.
- Bitcoin block
- 971919 · mined Oct. 17, 2026, 7:57 p.m. ET · mempool.space
- Bitcoin tx
5c9d0b260cdf109253447c1bc3f3adfd5225074b5a8d71e9fe8b3473aad377c2- Previous version
- None.
- Next version
- None.
How to verify
- Save the article element (
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- The .ots proof, once submitted, is checked against the OpenTimestamps calendars and then Bitcoin.
- A match shows the text existed then. It does not show the text was right.