about signature standard coin question

[892280082]

about me

I am trying to learn Chialisp, and then write a tutorial . I have a problem when signing the standard currency, I hope the official can help me, so that I can help more people to know About Chia.The next two are projects I'm working on.

• chialisp-tutorials
• chialisp-script-driver-node

The question

i'am writing driver script for chialisp.i ran into a problem with spent the standard coin.
i driver script use nodejs dsl , use python script to signature.
Spentbundler. json is successfully signed and pushed to the node with error message "unkown unspent"
I know this error indicates that the node library did not find the coin, but I have carefully confirmed that it exists and that there is no problem with spending smart currency.
I'd like to ask for official support, if I missed something.

The environment

ubuntu20.4
chia version 1.2.6
chia network:testnet

js driver

#!clsp

@debug

@include("./deploy3_1.js")

const standardCoin = new StandardCoin(contri_coin);

const new_amount = piggy_coin.getAmount()+standardCoin.getAmount()

piggy_coin.setSolution([piggy_coin.getAmount(),new_amount,piggy_coin.getPuzzleHash()])

standardCoin.addCondition([
		[OPC_CODE.ASSERT_COIN_ANNOUNCEMENT,SHA256(`${piggy_coin.getId()} ${new_amount}`)]
	],@sk1)

await Rpc.of([piggy_coin,standardCoin]).spent().print()

python signature for standard coin

I think it's mainly a question of signatures

import sys

import json

from blspy import AugSchemeMPL, G1Element, G2Element, PrivateKey

from chia.types.condition_opcodes import ConditionOpcode

from chia.util.hash import std_hash

from clvm.casts import int_to_bytes

from functools import reduce

from chia.types.blockchain_format.program import Program

from chia.wallet.puzzles.p2_delegated_puzzle_or_hidden_puzzle import (  # standard_transaction
    puzzle_for_pk,
    calculate_synthetic_secret_key,
    DEFAULT_HIDDEN_PUZZLE_HASH,
)

from chia.consensus.default_constants import DEFAULT_CONSTANTS

from typing import Dict, List, Tuple, Optional, Union


# Converts a hexadecimal string in an array to bytes
def convertConditions(arrs):
    for i in range(0, len(arrs)): 
        ob=arrs[i]
        if isinstance(ob,list):
            convertConditions(ob)
        elif isinstance(ob,str) and ob.index("0x") == 0:
            arrs[i]=bytes.fromhex(ob[2:])

data=json.loads(sys.argv[1])

SK=PrivateKey.from_bytes(bytes.fromhex(data["sk"][2:]))

PK=SK.get_g1()

condition_args: List[List] = data["args"]

convertConditions(condition_args)

delegated_puzzle_solution = Program.to((1, condition_args))

solution = Program.to([[], delegated_puzzle_solution, []])

signature: G2Element = AugSchemeMPL.sign(
    calculate_synthetic_secret_key(SK, DEFAULT_HIDDEN_PUZZLE_HASH),
    (
        delegated_puzzle_solution.get_tree_hash()
        + bytes.fromhex(data["id"][2:])
        + DEFAULT_CONSTANTS.AGG_SIG_ME_ADDITIONAL_DATA
    ),
)

puzzle_reveal=puzzle_for_pk(PK)

output={'puzzle_reveal':str(puzzle_reveal),'solution':str(solution),'signature':str(signature)}

print(json.dumps(output))

invoke cmd

> python3 /home/yeqin/chia/chialisp-preclsp/pythonLib/standarCoinSign.py "{\"sk\":\"0x5d655639159cb88db3764714b53764f38da0f8cb2bcfcfa43f17652741fd4e00\",\"puzzleHash\":\"0xa1f222c319199f0ef7aa2db67b883647a9056fbe9c1f13468fec2c789cf0c36a\",\"id\":\"0x31e60be51eb67b66c1acea07bc5b9fdc3913fbac6aaf4062407a7089894b501f\",\"args\":[[61,\"0x99f942dc8d1636b90754e6e2a89486b4fcf198329cced28e968af74d7c1531b7\"]]}"


~ {"puzzle_reveal": "ff02ffff01ff02ffff01ff02ffff03ff0bffff01ff02ffff03ffff09ff05ffff1dff0bffff1effff0bff0bffff02ff06ffff04ff02ffff04ff17ff8080808080808080ffff01ff02ff17ff2f80ffff01ff088080ff0180ffff01ff04ffff04ff04ffff04ff05ffff04ffff02ff06ffff04ff02ffff04ff17ff80808080ff80808080ffff02ff17ff2f808080ff0180ffff04ffff01ff32ff02ffff03ffff07ff0580ffff01ff0bffff0102ffff02ff06ffff04ff02ffff04ff09ff80808080ffff02ff06ffff04ff02ffff04ff0dff8080808080ffff01ff0bffff0101ff058080ff0180ff018080ffff04ffff01b083a46f343b77fd36666f9e3f1d548b3c484fa135625668d56bc5199df757068d90739c493820a302265546019ae2a275ff018080", "solution": "ff80ffff01ffff3dffa099f942dc8d1636b90754e6e2a89486b4fcf198329cced28e968af74d7c1531b78080ff8080", "signature": "8f50a32cb89c38ee9122659e4d4a15838b9e7d0096f677c2cf3fcb08289f3020cc113eabf605329cb67464e203298d870e6c166791b45cd98cddfb06125c4c2c789d8e14b82a5216f4798ba3b791fc1a67d9de81217eecc175debf13525dd9ee"}

spent_bundler.json

{
  "aggregated_signature": "8f50a32cb89c38ee9122659e4d4a15838b9e7d0096f677c2cf3fcb08289f3020cc113eabf605329cb67464e203298d870e6c166791b45cd98cddfb06125c4c2c789d8e14b82a5216f4798ba3b791fc1a67d9de81217eecc175debf13525dd9ee",
  "coin_spends": [
    {
      "coin": {
        "amount": 100000000,
        "parent_coin_info": "0aa7522dfb16712d10c831467665435d4f06aa8430b9fa342a7948e4d3262fcf",
        "puzzle_hash": "4f542ecf1ec805078fd98aad04e77127c8e481bedd86c5ae4c371fae06785ae6"
      },
      "puzzle_reveal": "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",
      "solution": "ff8405f5e100ff840bebc200ffa04f542ecf1ec805078fd98aad04e77127c8e481bedd86c5ae4c371fae06785ae680"
    },
    {
      "coin": {
        "amount": 100000000,
        "parent_coin_info": "4d34426a505fa9f9bd11734a1442d6b360750009f539fa273e8e48b2fee3f09e",
        "puzzle_hash": "a1f222c319199f0ef7aa2db67b883647a9056fbe9c1f13468fec2c789cf0c36a"
      },
      "puzzle_reveal": "ff02ffff01ff02ffff01ff02ffff03ff0bffff01ff02ffff03ffff09ff05ffff1dff0bffff1effff0bff0bffff02ff06ffff04ff02ffff04ff17ff8080808080808080ffff01ff02ff17ff2f80ffff01ff088080ff0180ffff01ff04ffff04ff04ffff04ff05ffff04ffff02ff06ffff04ff02ffff04ff17ff80808080ff80808080ffff02ff17ff2f808080ff0180ffff04ffff01ff32ff02ffff03ffff07ff0580ffff01ff0bffff0102ffff02ff06ffff04ff02ffff04ff09ff80808080ffff02ff06ffff04ff02ffff04ff0dff8080808080ffff01ff0bffff0101ff058080ff0180ff018080ffff04ffff01b083a46f343b77fd36666f9e3f1d548b3c484fa135625668d56bc5199df757068d90739c493820a302265546019ae2a275ff018080",
      "solution": "ff80ffff01ffff3dffa099f942dc8d1636b90754e6e2a89486b4fcf198329cced28e968af74d7c1531b78080ff8080"
    }
  ]
}

> cdv rpc pushtx bCNS_spent_runtime.json


~ ("{'error': 'Failed to include transaction "
 'a4a8a8ebf9798fabe78dd40076d162904c286c6f4f6f650eea431f75591ae60f, error '
 "UNKNOWN_UNSPENT', 'success': False}")

[892280082]

the error log

2021-11-02T14:37:16.474 full_node chia.rpc.rpc_server : WARNING Error while handling message: Traceback (most recent call last):
File "/home/yeqin/chia/chia-dev-tools/venv/lib/python3.8/site-packages/chia/rpc/rpc_server.py", line 83, in inner
res_object = await f(request_data)
File "/home/yeqin/chia/chia-dev-tools/venv/lib/python3.8/site-packages/chia/rpc/full_node_rpc_api.py", line 536, in push_tx
raise ValueError(f"Failed to include transaction {spend_name}, error {error.name}")
ValueError: Failed to include transaction a4a8a8ebf9798fabe78dd40076d162904c286c6f4f6f650eea431f75591ae60f, error UNKNOWN_UNSPENT

[892280082]

the standard coin is exist

(venv) yeqin@yeqin-QiTianM410-N000:~/chia$ cdv rpc coinrecords --by id 0x31e60be51eb67b66c1acea07bc5b9fdc3913fbac6aaf4062407a7089894b501f
[
    {
        "coin": {
            "amount": 100000000,
            "parent_coin_info": "0x4d34426a505fa9f9bd11734a1442d6b360750009f539fa273e8e48b2fee3f09e",
            "puzzle_hash": "0xa1f222c319199f0ef7aa2db67b883647a9056fbe9c1f13468fec2c789cf0c36a"
        },
        "coinbase": false,
        "confirmed_block_index": 669285,
        "spent": false,
        "spent_block_index": 0,
        "timestamp": 1633104343
    }
]

[892280082]

i optimize python code but push the rpc also show error "UNKNOW UNSPENT"

import sys

import json

from blspy import AugSchemeMPL, G1Element, G2Element, PrivateKey

from chia.types.condition_opcodes import ConditionOpcode

from chia.util.hash import std_hash

from clvm.casts import int_to_bytes

from functools import reduce

from chia.types.blockchain_format.program import Program

from chia.wallet.puzzles.p2_delegated_puzzle_or_hidden_puzzle import (  # standard_transaction
    puzzle_for_pk,
    calculate_synthetic_secret_key,
    DEFAULT_HIDDEN_PUZZLE_HASH,
)

from chia.consensus.default_constants import DEFAULT_CONSTANTS

from typing import Dict, List, Tuple, Optional, Union


# Converts a hexadecimal string in an array to bytes
def convertConditions(arrs):
    for i in range(0, len(arrs)): 
        ob=arrs[i]
        if isinstance(ob,list):
            convertConditions(ob)
        elif isinstance(ob,str) and ob.index("0x") == 0:
            arrs[i]=bytes.fromhex(ob[2:])


def sign_standard_spend(coinName: bytes,priv: PrivateKey, conditions: List[List]):
    delegated_puzzle_solution = Program.to((1, conditions))
    solution = Program.to([[], delegated_puzzle_solution, []])

    return solution,AugSchemeMPL.sign(
        calculate_synthetic_secret_key(priv, DEFAULT_HIDDEN_PUZZLE_HASH),
        (delegated_puzzle_solution.get_tree_hash() + coinName + DEFAULT_CONSTANTS.AGG_SIG_ME_ADDITIONAL_DATA),
    )


data=json.loads(sys.argv[1])

#secret key
SK=PrivateKey.from_bytes(bytes.fromhex(data["sk"][2:]))

#public key
PK=SK.get_g1()

#programe
puzzlePrograme=puzzle_for_pk(PK)

#coin id
CoinName= bytes.fromhex(data["id"][2:])

#conditions
condition_args: List[List] = data["args"]

convertConditions(condition_args)

solution,signature=sign_standard_spend(CoinName,SK,condition_args)

output={'puzzle_reveal':str(puzzlePrograme),'solution':str(solution),'signature':str(signature)}

print(json.dumps(output))

[Quexington]

UNKOWN_UNSPENT sometimes actually means BAD_PUZZLE_REVEAL. You can verify by cdv clsp treehash <puzzle_reveal>. The puzzle you have revealed is not the one that is committed to in the coin.

[geraldneale]

To expand a little on what Quex said above, specifically this coin in your spend_bundle has the issue:
"coin": {
"amount": 100000000,
"parent_coin_info": "4d34426a505fa9f9bd11734a1442d6b360750009f539fa273e8e48b2fee3f09e",
"puzzle_hash": "a1f222c319199f0ef7aa2db67b883647a9056fbe9c1f13468fec2c789cf0c36a"

It has this puzzle reveal from your spend_bundle:
cdv clsp treehash ff02ffff01ff02ffff01ff02ffff03ff0bffff01ff02ffff03ffff09ff05ffff1dff0bffff1effff0bff0bffff02ff06ffff04ff02ffff04ff17ff8080808080808080ffff01ff02ff17ff2f80ffff01ff088080ff0180ffff01ff04ffff04ff04ffff04ff05ffff04ffff02ff06ffff04ff02ffff04ff17ff80808080ff80808080ffff02ff17ff2f808080ff0180ffff04ffff01ff32ff02ffff03ffff07ff0580ffff01ff0bffff0102ffff02ff06ffff04ff02ffff04ff09ff80808080ffff02ff06ffff04ff02ffff04ff0dff8080808080ffff01ff0bffff0101ff058080ff0180ff018080ffff04ffff01b083a46f343b77fd36666f9e3f1d548b3c484fa135625668d56bc5199df757068d90739c493820a302265546019ae2a275ff018080

Which returns:
dbbef2ee08dc0cc9f242a7db07f8ead4a634ae51290d6c6a878c2d348f0f9081

While your puzzle_hash is spend_bundle is something different:
a1f222c319199f0ef7aa2db67b883647a9056fbe9c1f13468fec2c789cf0c36a

Therefore it's either an UNKNOWN_UNSPENT because the coin indicated by your puzzle_reveal isn't present(like you forgot to paste over default values for the coin values) or it's a BAD_PUZZLE_REVEAL because the puzzle_reveal is non-sense due to bad paste or some other reason. From my perspective it's hard to tell which. Basically the node validator has guessed UNKNOWN_UNSPENT.

[892280082]

Thanks to you, I solved my problem. I misunderstood the reason for "unkonw unspent". I can continue to enjoy writing my chialisp tutorial.