script_data_hash mis-encodes script data (empty redeemers + datums; cost models language views) → PPViewHashesDontMatch

[BrockCruess]

Describe the bug:
script_data_hash encodes script data incorrectly:

• If datums present and redeemers empty, spec requires [0x80 | datums | 0xA0]; pycardano emits an empty map for the first field via CBOR-encoding RedeemerMap.
• In the general case, the third field must be the cost models’ language views encoding, not cbor2.dumps(cost_models).

Compare this, to this Rust solution

To reproduce (unit-level):

1. pycardano 0.15.0 (also occurs on 0.14.0), Python 3.11, cbor2 5.7.0.
2. Create any datum (e.g., PlutusData(42)); set datums=[datum], redeemers empty (RedeemerMap()).
3. Call script_data_hash(redeemers, datums, cost_models=None).
4. Observe: pycardano encodes the first field as an empty CBOR map; expected is 0x80 (empty list). Also, for non-empty redeemers, the third field should be language views encoding, not cbor2.dumps(cost_models).

End-to-end repro (real tx):

1. Build unsigned tx (e.g., Lucid Evo) that includes datums but no redeemers.
2. Sign body and attach a vkey witness with pycardano (don’t alter body).
3. Submit to a node.
4. Ledger rejects with PPViewHashesDontMatch (Conway), indicating the script data hash in the body doesn’t match the node’s view due to the encoding issues above.

Logs:

{"txId": "55c701f...2372def", "status": 400, "submitResponse": "{\"contents\":{\"contents\":{\"contents\":{\"era\":\"ShelleyBasedEraConway\",\"error\":[\"ConwayUtxowFailure (PPViewHashesDontMatch (SJust (SafeHash \\\"105d23ade722bf809631a5b0f92176640f32e669ae1fda21c98dc0eaec8eb4a7\\\")) (SJust (SafeHash \\\"ed760ad389dc18f4a5058b8b208a27bdcbfccb99d32d6897e61e0b82908ea1b9\\\")))\"],\"kind\":\"ShelleyTxValidationError\"},\"tag\":\"TxValidationErrorInCardanoMode\"},\"tag\":\"TxCmdTxSubmitValidationError\"},\"tag\":\"TxSubmitFail\"}", "witnessKeyHash": "<unknown>"}

Expected behavior:
When datums present and redeemers empty: encode [0x80 | datums | 0xA0].
Otherwise: third field = cost_models.language_views_encoding().

Environment and software version:

• Windows 11
• Python 3.11
• PyCardano 0.15.0
• cbor2 5.7.0
• Tx CBOR sourced from Lucid Evo (Conway mainnet)

[cffls]

Thanks for reporting this issue.
[0x80 | datums | 0xA0] is pre-conway format, see this spec.
while [0xA0 | datums | 0xA0] is the post-conway format, see this spec.

By default, pycardano will be using post-conway encoding format. Also, cbor2.dumps(cost_models) will result in 0xA0 when cost_models is an empty map, which is expected.

I guess the problem is that, originally, Lucid created a txn that uses 0x80 for redeemers, and after decoding, pycardano converted it to a map 0xA0. Could you share the original unsigned transaction that needs to be signed by pycardano?

[BrockCruess]

I was interacting with Strike's API when encountering this issue, it seems they may have been facing some incompatibility between different serialization libraries. They now offer a submission endpoint that seems to have circumvented the issues. Here's the unsigned cbor hex I was having issues with:

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[cffls]

Thanks for the data. I tried to deserialize the transaction and re-serialize it, and got the same hex. Because the hex is the same, it means pycardano didn't change script_data_hash field, which indicates that the problem is likely from the unsigned transaction itself.

>>> cbor_hex = "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955ceaab9e5573eae815d0aba24c11e581cd2980b6f47ce87a6bf57223bb806e7ab8d459e30b69977ee2cd5d9d2004c01125150524f544f434f4c5f504f4f4c5f4e46540001f5f6"
>>> tx = Transaction.from_cbor(cbor_hex)
>>> tx.to_cbor_hex() == cbor_hex
True

[cffls]

I've also verified that the output of script_data_hash function matches script_data_hash field in the transaction body:

>>> cost_models = {}
>>> cost_models[2] = context.protocol_param.cost_models.get("PlutusV3")
>>> cost_models
{2: {'addInteger-cpu-arguments-intercept': 100788, 'addInteger-cpu-arguments-slope': 420, 'addInteger-memory-arguments-intercept': 1, 'addInteger-memory-arguments-slope': 1, 'appendByteString-cpu-arguments-intercept': 1000, 'appendByteString-cpu-arguments-slope': 173, 'appendByteString-memory-arguments-intercept': 0, 'appendByteString-memory-arguments-slope': 1, 'appendString-cpu-arguments-intercept': 1000, 'appendString-cpu-arguments-slope': 59957, 'appendString-memory-arguments-intercept': 4, 'appendString-memory-arguments-slope': 1, 'bData-cpu-arguments': 11183, 'bData-memory-arguments': 32, 'blake2b_256-cpu-arguments-intercept': 201305, 'blake2b_256-cpu-arguments-slope': 8356, 'blake2b_256-memory-arguments': 4, 'cekApplyCost-exBudgetCPU': 16000, 'cekApplyCost-exBudgetMemory': 100, 'cekBuiltinCost-exBudgetCPU': 16000, 'cekBuiltinCost-exBudgetMemory': 100, 'cekConstCost-exBudgetCPU': 16000, 'cekConstCost-exBudgetMemory': 100, 'cekDelayCost-exBudgetCPU': 16000, 'cekDelayCost-exBudgetMemory': 100, 'cekForceCost-exBudgetCPU': 16000, 'cekForceCost-exBudgetMemory': 100, 'cekLamCost-exBudgetCPU': 16000, 'cekLamCost-exBudgetMemory': 100, 'cekStartupCost-exBudgetCPU': 100, 'cekStartupCost-exBudgetMemory': 100, 'cekVarCost-exBudgetCPU': 16000, 'cekVarCost-exBudgetMemory': 100, 'chooseData-cpu-arguments': 94375, 'chooseData-memory-arguments': 32, 'chooseList-cpu-arguments': 132994, 'chooseList-memory-arguments': 32, 'chooseUnit-cpu-arguments': 61462, 'chooseUnit-memory-arguments': 4, 'consByteString-cpu-arguments-intercept': 72010, 'consByteString-cpu-arguments-slope': 178, 'consByteString-memory-arguments-intercept': 0, 'consByteString-memory-arguments-slope': 1, 'constrData-cpu-arguments': 22151, 'constrData-memory-arguments': 32, 'decodeUtf8-cpu-arguments-intercept': 91189, 'decodeUtf8-cpu-arguments-slope': 769, 'decodeUtf8-memory-arguments-intercept': 4, 'decodeUtf8-memory-arguments-slope': 2, 'divideInteger-cpu-arguments-constant': 85848, 'divideInteger-cpu-arguments-model-arguments-c00': 123203, 'divideInteger-cpu-arguments-model-arguments-c01': 7305, 'divideInteger-cpu-arguments-model-arguments-c02': -900, 'divideInteger-cpu-arguments-model-arguments-c10': 1716, 'divideInteger-cpu-arguments-model-arguments-c11': 549, 'divideInteger-cpu-arguments-model-arguments-c20': 57, 'divideInteger-cpu-arguments-model-arguments-minimum': 85848, 'divideInteger-memory-arguments-intercept': 0, 'divideInteger-memory-arguments-minimum': 1, 'divideInteger-memory-arguments-slope': 1, 'encodeUtf8-cpu-arguments-intercept': 1000, 'encodeUtf8-cpu-arguments-slope': 42921, 'encodeUtf8-memory-arguments-intercept': 4, 'encodeUtf8-memory-arguments-slope': 2, 'equalsByteString-cpu-arguments-constant': 24548, 'equalsByteString-cpu-arguments-intercept': 29498, 'equalsByteString-cpu-arguments-slope': 38, 'equalsByteString-memory-arguments': 1, 'equalsData-cpu-arguments-intercept': 898148, 'equalsData-cpu-arguments-slope': 27279, 'equalsData-memory-arguments': 1, 'equalsInteger-cpu-arguments-intercept': 51775, 'equalsInteger-cpu-arguments-slope': 558, 'equalsInteger-memory-arguments': 1, 'equalsString-cpu-arguments-constant': 39184, 'equalsString-cpu-arguments-intercept': 1000, 'equalsString-cpu-arguments-slope': 60594, 'equalsString-memory-arguments': 1, 'fstPair-cpu-arguments': 141895, 'fstPair-memory-arguments': 32, 'headList-cpu-arguments': 83150, 'headList-memory-arguments': 32, 'iData-cpu-arguments': 15299, 'iData-memory-arguments': 32, 'ifThenElse-cpu-arguments': 76049, 'ifThenElse-memory-arguments': 1, 'indexByteString-cpu-arguments': 13169, 'indexByteString-memory-arguments': 4, 'lengthOfByteString-cpu-arguments': 22100, 'lengthOfByteString-memory-arguments': 10, 'lessThanByteString-cpu-arguments-intercept': 28999, 'lessThanByteString-cpu-arguments-slope': 74, 'lessThanByteString-memory-arguments': 1, 'lessThanEqualsByteString-cpu-arguments-intercept': 28999, 'lessThanEqualsByteString-cpu-arguments-slope': 74, 'lessThanEqualsByteString-memory-arguments': 1, 'lessThanEqualsInteger-cpu-arguments-intercept': 43285, 'lessThanEqualsInteger-cpu-arguments-slope': 552, 'lessThanEqualsInteger-memory-arguments': 1, 'lessThanInteger-cpu-arguments-intercept': 44749, 'lessThanInteger-cpu-arguments-slope': 541, 'lessThanInteger-memory-arguments': 1, 'listData-cpu-arguments': 33852, 'listData-memory-arguments': 32, 'mapData-cpu-arguments': 68246, 'mapData-memory-arguments': 32, 'mkCons-cpu-arguments': 72362, 'mkCons-memory-arguments': 32, 'mkNilData-cpu-arguments': 7243, 'mkNilData-memory-arguments': 32, 'mkNilPairData-cpu-arguments': 7391, 'mkNilPairData-memory-arguments': 32, 'mkPairData-cpu-arguments': 11546, 'mkPairData-memory-arguments': 32, 'modInteger-cpu-arguments-constant': 85848, 'modInteger-cpu-arguments-model-arguments-c00': 123203, 'modInteger-cpu-arguments-model-arguments-c01': 7305, 'modInteger-cpu-arguments-model-arguments-c02': -900, 'modInteger-cpu-arguments-model-arguments-c10': 1716, 'modInteger-cpu-arguments-model-arguments-c11': 549, 'modInteger-cpu-arguments-model-arguments-c20': 57, 'modInteger-cpu-arguments-model-arguments-minimum': 85848, 'modInteger-memory-arguments-intercept': 0, 'modInteger-memory-arguments-slope': 1, 'multiplyInteger-cpu-arguments-intercept': 90434, 'multiplyInteger-cpu-arguments-slope': 519, 'multiplyInteger-memory-arguments-intercept': 0, 'multiplyInteger-memory-arguments-slope': 1, 'nullList-cpu-arguments': 74433, 'nullList-memory-arguments': 32, 'quotientInteger-cpu-arguments-constant': 85848, 'quotientInteger-cpu-arguments-model-arguments-c00': 123203, 'quotientInteger-cpu-arguments-model-arguments-c01': 7305, 'quotientInteger-cpu-arguments-model-arguments-c02': -900, 'quotientInteger-cpu-arguments-model-arguments-c10': 1716, 'quotientInteger-cpu-arguments-model-arguments-c11': 549, 'quotientInteger-cpu-arguments-model-arguments-c20': 57, 'quotientInteger-cpu-arguments-model-arguments-minimum': 85848, 'quotientInteger-memory-arguments-intercept': 0, 'quotientInteger-memory-arguments-slope': 1, 'remainderInteger-cpu-arguments-constant': 1, 'remainderInteger-cpu-arguments-model-arguments-c00': 85848, 'remainderInteger-cpu-arguments-model-arguments-c01': 123203, 'remainderInteger-cpu-arguments-model-arguments-c02': 7305, 'remainderInteger-cpu-arguments-model-arguments-c10': -900, 'remainderInteger-cpu-arguments-model-arguments-c11': 1716, 'remainderInteger-cpu-arguments-model-arguments-c20': 549, 'remainderInteger-cpu-arguments-model-arguments-minimum': 57, 'remainderInteger-memory-arguments-intercept': 85848, 'remainderInteger-memory-arguments-minimum': 0, 'remainderInteger-memory-arguments-slope': 1, 'serialiseData-cpu-arguments-intercept': 955506, 'serialiseData-cpu-arguments-slope': 213312, 'serialiseData-memory-arguments-intercept': 0, 'serialiseData-memory-arguments-slope': 2, 'sha2_256-cpu-arguments-intercept': 270652, 'sha2_256-cpu-arguments-slope': 22588, 'sha2_256-memory-arguments': 4, 'sha3_256-cpu-arguments-intercept': 1457325, 'sha3_256-cpu-arguments-slope': 64566, 'sha3_256-memory-arguments': 4, 'sliceByteString-cpu-arguments-intercept': 20467, 'sliceByteString-cpu-arguments-slope': 1, 'sliceByteString-memory-arguments-intercept': 4, 'sliceByteString-memory-arguments-slope': 0, 'sndPair-cpu-arguments': 141992, 'sndPair-memory-arguments': 32, 'subtractInteger-cpu-arguments-intercept': 100788, 'subtractInteger-cpu-arguments-slope': 420, 'subtractInteger-memory-arguments-intercept': 1, 'subtractInteger-memory-arguments-slope': 1, 'tailList-cpu-arguments': 81663, 'tailList-memory-arguments': 32, 'trace-cpu-arguments': 59498, 'trace-memory-arguments': 32, 'unBData-cpu-arguments': 20142, 'unBData-memory-arguments': 32, 'unConstrData-cpu-arguments': 24588, 'unConstrData-memory-arguments': 32, 'unIData-cpu-arguments': 20744, 'unIData-memory-arguments': 32, 'unListData-cpu-arguments': 25933, 'unListData-memory-arguments': 32, 'unMapData-cpu-arguments': 24623, 'unMapData-memory-arguments': 32, 'verifyEcdsaSecp256k1Signature-cpu-arguments': 43053543, 'verifyEcdsaSecp256k1Signature-memory-arguments': 10, 'verifyEd25519Signature-cpu-arguments-intercept': 53384111, 'verifyEd25519Signature-cpu-arguments-slope': 14333, 'verifyEd25519Signature-memory-arguments': 10, 'verifySchnorrSecp256k1Signature-cpu-arguments-intercept': 43574283, 'verifySchnorrSecp256k1Signature-cpu-arguments-slope': 26308, 'verifySchnorrSecp256k1Signature-memory-arguments': 10, 'cekConstrCost-exBudgetCPU': 16000, 'cekConstrCost-exBudgetMemory': 100, 'cekCaseCost-exBudgetCPU': 16000, 'cekCaseCost-exBudgetMemory': 100, 'bls12_381_G1_add-cpu-arguments': 962335, 'bls12_381_G1_add-memory-arguments': 18, 'bls12_381_G1_compress-cpu-arguments': 2780678, 'bls12_381_G1_compress-memory-arguments': 6, 'bls12_381_G1_equal-cpu-arguments': 442008, 'bls12_381_G1_equal-memory-arguments': 1, 'bls12_381_G1_hashToGroup-cpu-arguments-intercept': 52538055, 'bls12_381_G1_hashToGroup-cpu-arguments-slope': 3756, 'bls12_381_G1_hashToGroup-memory-arguments': 18, 'bls12_381_G1_neg-cpu-arguments': 267929, 'bls12_381_G1_neg-memory-arguments': 18, 'bls12_381_G1_scalarMul-cpu-arguments-intercept': 76433006, 'bls12_381_G1_scalarMul-cpu-arguments-slope': 8868, 'bls12_381_G1_scalarMul-memory-arguments': 18, 'bls12_381_G1_uncompress-cpu-arguments': 52948122, 'bls12_381_G1_uncompress-memory-arguments': 18, 'bls12_381_G2_add-cpu-arguments': 1995836, 'bls12_381_G2_add-memory-arguments': 36, 'bls12_381_G2_compress-cpu-arguments': 3227919, 'bls12_381_G2_compress-memory-arguments': 12, 'bls12_381_G2_equal-cpu-arguments': 901022, 'bls12_381_G2_equal-memory-arguments': 1, 'bls12_381_G2_hashToGroup-cpu-arguments-intercept': 166917843, 'bls12_381_G2_hashToGroup-cpu-arguments-slope': 4307, 'bls12_381_G2_hashToGroup-memory-arguments': 36, 'bls12_381_G2_neg-cpu-arguments': 284546, 'bls12_381_G2_neg-memory-arguments': 36, 'bls12_381_G2_scalarMul-cpu-arguments-intercept': 158221314, 'bls12_381_G2_scalarMul-cpu-arguments-slope': 26549, 'bls12_381_G2_scalarMul-memory-arguments': 36, 'bls12_381_G2_uncompress-cpu-arguments': 74698472, 'bls12_381_G2_uncompress-memory-arguments': 36, 'bls12_381_finalVerify-cpu-arguments': 333849714, 'bls12_381_finalVerify-memory-arguments': 1, 'bls12_381_millerLoop-cpu-arguments': 254006273, 'bls12_381_millerLoop-memory-arguments': 72, 'bls12_381_mulMlResult-cpu-arguments': 2174038, 'bls12_381_mulMlResult-memory-arguments': 72, 'keccak_256-cpu-arguments-intercept': 2261318, 'keccak_256-cpu-arguments-slope': 64571, 'keccak_256-memory-arguments': 4, 'blake2b_224-cpu-arguments-intercept': 207616, 'blake2b_224-cpu-arguments-slope': 8310, 'blake2b_224-memory-arguments': 4, 'integerToByteString-cpu-arguments-c0': 1293828, 'integerToByteString-cpu-arguments-c1': 28716, 'integerToByteString-cpu-arguments-c2': 63, 'integerToByteString-memory-arguments-intercept': 0, 'integerToByteString-memory-arguments-slope': 1, 'byteStringToInteger-cpu-arguments-c0': 1006041, 'byteStringToInteger-cpu-arguments-c1': 43623, 'byteStringToInteger-cpu-arguments-c2': 251, 'byteStringToInteger-memory-arguments-intercept': 0, 'byteStringToInteger-memory-arguments-slope': 1, 'andByteString-cpu-arguments-intercept': 100181, 'andByteString-cpu-arguments-slope1': 726, 'andByteString-cpu-arguments-slope2': 719, 'andByteString-memory-arguments-intercept': 0, 'andByteString-memory-arguments-slope': 1, 'orByteString-cpu-arguments-intercept': 100181, 'orByteString-cpu-arguments-slope1': 726, 'orByteString-cpu-arguments-slope2': 719, 'orByteString-memory-arguments-intercept': 0, 'orByteString-memory-arguments-slope': 1, 'xorByteString-cpu-arguments-intercept': 100181, 'xorByteString-cpu-arguments-slope1': 726, 'xorByteString-cpu-arguments-slope2': 719, 'xorByteString-memory-arguments-intercept': 0, 'xorByteString-memory-arguments-slope': 1, 'complementByteString-cpu-arguments-intercept': 107878, 'complementByteString-cpu-arguments-slope': 680, 'complementByteString-memory-arguments-intercept': 0, 'complementByteString-memory-arguments-slope': 1, 'readBit-cpu-arguments': 95336, 'readBit-memory-arguments': 1, 'writeBits-cpu-arguments-intercept': 281145, 'writeBits-cpu-arguments-slope': 18848, 'writeBits-memory-arguments-intercept': 0, 'writeBits-memory-arguments-slope': 1, 'replicateByte-cpu-arguments-intercept': 180194, 'replicateByte-cpu-arguments-slope': 159, 'replicateByte-memory-arguments-intercept': 1, 'replicateByte-memory-arguments-slope': 1, 'shiftByteString-cpu-arguments-intercept': 158519, 'shiftByteString-cpu-arguments-slope': 8942, 'shiftByteString-memory-arguments-intercept': 0, 'shiftByteString-memory-arguments-slope': 1, 'rotateByteString-cpu-arguments-intercept': 159378, 'rotateByteString-cpu-arguments-slope': 8813, 'rotateByteString-memory-arguments-intercept': 0, 'rotateByteString-memory-arguments-slope': 1, 'countSetBits-cpu-arguments-intercept': 107490, 'countSetBits-cpu-arguments-slope': 3298, 'countSetBits-memory-arguments': 1, 'findFirstSetBit-cpu-arguments-intercept': 106057, 'findFirstSetBit-cpu-arguments-slope': 655, 'findFirstSetBit-memory-arguments': 1, 'ripemd_160-cpu-arguments-intercept': 1964219, 'ripemd_160-cpu-arguments-slope': 24520, 'ripemd_160-memory-arguments': 3}}

>>> script_data_hash(tx.transaction_witness_set.redeemer, tx.transaction_witness_set.plutus_data, CostModels(cost_models))
ScriptDataHash(hex='105d23ade722bf809631a5b0f92176640f32e669ae1fda21c98dc0eaec8eb4a7')

>>> tx.transaction_body.script_data_hash
ScriptDataHash(hex='105d23ade722bf809631a5b0f92176640f32e669ae1fda21c98dc0eaec8eb4a7')

[cffls]

From the evidences above, I think the issue is most likely originated from the unsigned transaction. Closing this issue for now. Please feel free to reopen if you think the problem is actually in pycardano.