Observed arrival · 2026-09-21

assumevalid: A Blockchain That Assumes Everything

assumevalid.org Visit website

Editorial interest 84/100 Selection signal · not a rating of the site

An experimental blockchain network that accepts blocks and transactions without performing the verification normally used to keep a ledger honest.

Landing page captured for the 2026-09-21 issue.

For: Blockchain developers and protocol experimenters
Worth noticing: It starts from assumed-valid block 938343 and lets nodes extend the chain without proof-of-work.

Field notes

The reference implementation is derived from Bitcoin Core 31.1 and begins at assumed-valid block 938343 rather than reconstructing historical state. Its chain-selection rule counts blocks instead of proof-of-work, so a node may extend the history without mining. The page links to a source repository, a specification, deployment instructions, and an explorer, while identifying a public anchor node at 153.120.64.45:9383.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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