Blocks
Forks and reorgs
Two miners sometimes find a block at the same height, and the network settles on one: the other goes stale. A fork is an event, not a grade of a pool or of the network.
Chain
facts from the node and the mempool engine
Stale tipsthe node's chain tips but the active one (Bitcoin Core, getchaintips) · as of 14:04:30 UTC, read every 30 s
| height | tip | status, in the node's words | branch | fork point (best chain) | time |
|---|---|---|---|---|---|
| #971,345 | 00000000…2cda3ee5 | valid-headers “All blocks are available for this branch, but they were never fully validated” | 1 | #971,344 · 00000000…93d1a711 | — |
| #969,888 | 00000000…75ccb611 | valid-headers “All blocks are available for this branch, but they were never fully validated” | 1 | #969,887 · 00000000…61250f2f | — |
| #969,298 | 00000000…f3a18d9e | headers-only “Not all blocks for this branch are available, but the headers are valid” | 1 | #969,297 · 00000000…3a3a98b7 | — |
| #967,143 | 00000000…32df314c | valid-fork “This branch is not part of the active chain, but is fully validated” | 1 | #967,142 · 00000000…edd4065f | |
| #966,500 | 00000000…a11a36ca | valid-fork “This branch is not part of the active chain, but is fully validated” | 1 | #966,499 · 00000000…8ab987b7 | |
| #961,639 | 00000000…13027e65 | valid-headers “All blocks are available for this branch, but they were never fully validated” | 8 | #961,631 · 00000000…9327ce8a | — |
Each status is Bitcoin Core's own word, quoted with its help text. The fork point is the active chain's block where the branch leaves it (height − branch).
“invalid” is the node's verdict on a block of that branch, never a statement about who mined it. “headers-only”: the node holds the headers, not the blocks, so a block page may answer only what the node has.
Reorgsseen by the mempool engine since it started, 2026-10-26 13:25:30 UTC · the last 50
computedno reorg since 2026-10-26 13:25:30 UTC, when the engine started