Thanks.
getblockchaininfo's pruneheight property is indeed it.
cellard, that subtraction assumes each block is exactly 1MB, and that pruning keeps exactly the prune target in raw block data.
Topic: Get hash of oldest stored block (Core pruned mode)? (Read 180 times)
getblockchaininfo will tell you the height of the oldest stored complete block. You can then look up its hash using getblockhash.
With Core in pruned mode, is there a command to get the hash of the oldest stored block?
I don't think so. It would be an interesting command to have. If there isn't, and until then, you can manually check it by subtracting N from current last block height, N being the number that you entered in the "prune=N" setting in your bitcoin.conf
So do:
getblockcount
This will give you the latest block you have. For instance for me right now is 526788, so let's say your prune N value is 550
526788-550=526238
getblockhash 526238
And there you go. If you try to get the hash of a block that is behind N you should get an error, something like "block not available (pruned data)".
A cvar that automates these steps could be added I guess.
With Core in pruned mode, is there a command to get the hash of the oldest stored block?
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