Questions tagged [chain-reorganization]

Questions about the client-local phenomenon when a Bitcoin client discovers a new chain longer in terms of difficulty than its current chain.

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Orphan blocks explorer

Is there any blockchain explorer that lists orphaned blocks or reorgs? How often does it happen in general? I only found this site which doesn't show any orphaned blocks after 2017: https://www....
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Reorgs and MEV in Bitcoin

Recently one of the altcoin that has lot of other issues is in news because of MEV (Miner Extractable Value). Honestly I don't care if someone exploits it or it affects the altcoin in any other way. ...
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How do nodes handle long reorgs?

In a reorg where a node receives blocks for a longer or equal-length chain than the chain they previously followed as longest, what is the process for that node to handle this situation? I can imagine ...
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Where can I find data for abandoned blocks (74,638 to 74,690) for the Value Overflow Incident when ₿184 billion BTC were accidentally created?

I already have data for all the Mainchain Blocks. Where can I find data for the orphaned/abandoned blocks (74,638 to 74,690) before the re-organisation occurred? I can only seem to find information ...
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how do I mark coins spent in invalid blocks as unspent?

I was just testing bitcoin (v17) in regtest mode with the local, built-in wallet. If I send money to an address (I don't own), generate 1, and then invalidate that block, the local wallet does not ...
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confirmations: 0 vs confirmations: -1?

I'm looking at a bitcoin clone, not sure what codebase it was cloned from, but I've noticed that the listSinceBlock output sometimes includes: a receive that has 0 confirmations a send that has 0 ...
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Bitcoinj stuck after chain split

I am using LevelDBFullPrunedBlockStore as a BlockChain. once in every 2-3 chainsplit in the network my bitcoinJ node stops to download new block. The scenario is always the same 1)My node get block ...
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Mempool tracking

I'm trying to clear up some uncertainties around the mempool A tx comes in, its validated, and no other transactions have currently marked any of its inputs. Tx gets added to mempool. If a double ...