00001011 00100101 11111110 01100100 010ppppp
    0x0b     0x25     0xfe     0x64     0x40
                                          ??

https://github.com/lightning/bolts/blob/0cf21511a781c295b9374aeaef37cf9c4d193502/11-payment-encoding.md?plain=1#L396

lightning

Excuse me, but wtf is `0b25fe64500d04` in this bolt11 test vector??

```
00001011 00100101 11111110 01100100 010ppppp
    0x0b     0x25     0xfe     0x64     0x40
                                          ??
```
this 👇

from https://github.com/lightning/bolts/blob/0cf21511a781c295b9374aeaef37cf9c4d193502/11-payment-encoding.md?plain=1#L396

6c6e62630b25fe64`50`

ppppp = 0x10 (bin: 1 0000)

0101 0000 = 0x50