Inspect Block Ancestry

Walk parent hashes from a starting block.

Use chain ancestry to walk backward from a starting block through parent hashes.

Command

rex chain ancestry \
  --block latest \
  --depth 20

--depth is the maximum number of rows to print, including the starting block.

Example Output

CHAIN ANCESTRY

Start:  latest
Depth:  3
Blocks: 3

      NUMBER HASH                                                               PARENT                                                             TIMESTAMP      TXS
         128 0xabc...                                                          0xdef...                                                          1724300000        2
         127 0xdef...                                                          0x123...                                                          1724299990        0
         126 0x123...                                                          0x456...                                                          1724299980        1

When It Stops Early

The command stops before --depth when:

• it reaches genesis
• a parent block cannot be found by hash

This command reads the node’s current block view. It does not compare against a previous snapshot, so it does not by itself prove that a reorg happened.