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I am in the middle of writing some Taproot libraries and would like some testnet/signet p2tr spends. Is there an easy way to find them? Most explorers don't have any filters like that. Even a list of 10 different p2tr's with various key-spends and tap-spends would be very helpful.

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    Not on chain, but have you seen github.com/bitcoin/bips/pull/1225 ? Nov 12 '21 at 23:56
  • I swear, I had the BIP0341 specification open and this PR wasn't included. Yes, this is exactly what I need because what was there before, I couldn't really understand. Thank you.
    – Jimmy Song
    Nov 13 '21 at 0:42
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    It was also only just merged. Nov 13 '21 at 1:34
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As Pieter said in the comments there are Taproot test vectors that have recently been merged into BIP 341.

You can also find additional P2TR spends on signet, testnet on block explorers e.g. mempool.space. Any transaction that is spending from a tb1p address is a Taproot spend (tb1q is SegWit version 0 and tb1p is SegWit version 1 as discussed here).

Alternatively any output that starts with OP_1 (01) and is spent in a transaction is a Taproot spend.

There are a number of Taproot spends in recent signet/testnet blocks at the time of writing (less than a day before Taproot activates on mainnet).

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