|
1 | | -# ckb-anyone-can-pay |
| 1 | +# ckb production scripts |
2 | 2 |
|
3 | | -CKB anyone-can-pay lock. |
4 | | - |
5 | | -[RFC Draft](https://talk.nervos.org/t/rfc-anyone-can-pay-lock/4438) |
6 | | - |
7 | | -## Build |
8 | | - |
9 | | -``` sh |
10 | | -make all-via-docker && cargo test |
11 | | -``` |
12 | | - |
13 | | -## Quick start |
14 | | - |
15 | | -### Create |
16 | | - |
17 | | -1, create a cell to receive UDT and CKB: |
18 | | - |
19 | | -``` |
20 | | -Cell { |
21 | | - lock: { |
22 | | - code_hash: <any-one-can-pay> |
23 | | - args: <pubkey hash> |
24 | | - } |
25 | | - data: <UDT amount> |
26 | | - type: <UDT> |
27 | | -} |
28 | | -``` |
29 | | - |
30 | | -2, create a cell to receive only CKB: |
31 | | - |
32 | | -``` |
33 | | -Cell { |
34 | | - lock: { |
35 | | - code_hash: <any-one-can-pay> |
36 | | - args: <pubkey hash> |
37 | | - } |
38 | | - data: <empty> |
39 | | - type: <none> |
40 | | -} |
41 | | -``` |
42 | | - |
43 | | -3, we can add minimum amount transfer condition: |
44 | | - |
45 | | -``` |
46 | | -Cell { |
47 | | - lock: { |
48 | | - code_hash: <any-one-can-pay> |
49 | | - args: <pubkey hash> | <minimum CKB> | <minimum UDT> |
50 | | - } |
51 | | - data: <UDT amount> |
52 | | - type: <UDT> |
53 | | -} |
54 | | -``` |
55 | | - |
56 | | -`minimum CKB` and `minimum UDT` are two optional args, each occupied a byte, and represent `10 ^ x` minimal amount. The default value is `0` which means anyone can transfer any amount to the cell. A transfer must satisfy the `minimum CKB` **or** `minimum UDT`. |
57 | | - |
58 | | -If the owner only wants to receive `UDT`, the owner can set `minimum CKB` to `255`. |
59 | | - |
60 | | -### Send UDT and CKB |
61 | | - |
62 | | -To transfer coins to an anyone-can-pay lock cell, the sender must build an output cell that has the same `lock_hash` and `type_hash` to the input anyone-can-pay lock cell; if the input anyone-can-pay cell has no `data`, the output cell must also be empty. |
63 | | - |
64 | | -``` |
65 | | -# inputs |
66 | | -Cell { |
67 | | - lock: { |
68 | | - code_hash: <any-one-can-pay> |
69 | | - args: <pubkey hash> | <minimum CKB: 2> |
70 | | - } |
71 | | - data: <empty> |
72 | | - type: <none> |
73 | | - capacity: 100 |
74 | | -} |
75 | | -... |
76 | | -
|
77 | | -# outputs |
78 | | -Cell { |
79 | | - lock: { |
80 | | - code_hash: <any-one-can-pay> |
81 | | - args: <pubkey hash> | <minimum CKB: 2> |
82 | | - } |
83 | | - data: <empty> |
84 | | - type: <none> |
85 | | - capacity: 200 |
86 | | -} |
87 | | -... |
88 | | -``` |
89 | | - |
90 | | -### Signature |
91 | | - |
92 | | -The owner can provide a secp256k1 signature to unlock the cell, the signature method is the same as the [P2PH](https://github.com/nervosnetwork/ckb-system-scripts/wiki/How-to-sign-transaction#p2ph). |
93 | | - |
94 | | -Unlock a cell with a signature has no restrictions, which helps owner to manage the cell as he wants. |
| 3 | +CKB scripts used in production. |
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