As far as I know, the lightning channel itself in blockchain is an P2WSH address UTXO with a 2-of-2 multisig script in it. Closing channel transaction is just spending from this UTXO.
For example: this transaction closed channel of 0.01 btc between two parties, Alice got 0,00032957 and Bob got 0,00965581
Are there another implementations of lightning channels, not P2WSH? I saw several transactions in blockchain, which are very similar to LN, but the difference is that the channel is not P2WSH, but P2TR eg this, this and this
