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Blocks & Rankings
Observed Reorgs
ExperimentalA log of chain reorganizations observed by Andreas and Adam - depth, timing, and the orphaned blocks that were replaced.
Reorg (“chain reorganization”) happens when the node first accepts one version of the blockchain, but then switches to a different competing version that becomes longer or has more accumulated proof-of-work. Most mainnet reorgs are shallow and normal, often just 1 block, caused by two miners finding a block at nearly the same time. This page records when they were observed, how deep they were, and which orphaned blocks were replaced.
Observation history began in March 2026, when this tracker was first deployed on Andreas. The Adam watcher was added at the end of April 2026. Older reorgs are not backfilled automatically.
The page refreshes automatically within seconds of a newly observed block. Timestamps shown in Local time.
Latest Depth
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Deepest Observed
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Observed Total
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Event Log
Newest first. Depth means how many blocks were orphaned from the previously seen tip. Select a row to inspect the orphaned branch and the canonical replacement chain.
Loading observed reorgs...
No reorg has been recorded by this tracker yet.
| View | Observed | Seen By | Depth | Ancestor | Old Tip | New Tip |
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