# 聪的读写：铭刻

在聪上写数据的技术称为铭刻（inscribe，来源于Ordinals协议）。

目前在BTC主网上写入数据的方式有如下几种：

1. UTXO，比如SRC20的数据写入方式
2. SegWitness, 隔离见证区，比如Ordinals的写入方式
3. OP\_RETURN，比如Runes的写入方式

SAT20支持多种方式在聪上铭刻数据，其目标是尽可能不影响BTC网络的安全。\
目前SAT20采用Ordinals协议的铭刻技术。\
在未来，SAT20会根据实际的情况，支持更多的数据写入方式。


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