Vis Virial (a.k.a. びりある) 9329af381f Fix "Using a single OP_CHECKSIGADD-based script" ...

1. CHECKSIG / CHECKSIGADD is confused

Only the first OP-code for the first public key should be "CHECKSIG" and the following (second to n-th) OP-codes should be "CHECKSIGADD".
It is confusing because it is only specified the first and last OP-codes, so I specified the second OP-code clearly.
(I recommend to describe why only the first OP-code should be "CHECKSIG", not "CHECKSIGADD".)

2. Order of the signatures in witness

In the original sentence, the stack status after the all witness elements are pushed will be
| w_n  |
|    :    |
| w_1 |

and then, the first element of the script, "<pubkey_1>" will be pushed to the stack
| pubkey_1 |
| w_n  |
|    :    |
| w_1 |

so the "pubkey_1" and "w_n" won't match.

The order of either "pubkey_i"s or "w_i"s should be inverted.

2020-02-20 16:24:06 +09:00

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