Opcodes · token · enabled
OP_OUTPUTTOKENCATEGORY (0xd1)
Pushes the token category of output i, with a capability byte appended for mutable (0x01) or minting (0x02) NFTs. Pushes 0 if the output holds no tokens.
Verified
- Stack in → out
- i → category[+cap] | 0
- Cost
- Base instruction cost 100 plus the byte length of the pushed result (2025 VM limits).
- Bitcoin status
- Not in Bitcoin (BTC)BTC has no native tokens. In Tapscript (BIP-342) this byte is an OP_SUCCESSx code reserved for future soft forks.
Example
OP_0 OP_OUTPUTTOKENCATEGORYStep through it opcode by opcode in Bitauth IDE, the in-browser BCH VM debugger.