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op return – Tx with OP_RETURN with 77 bytes of knowledge refused by node


A transaction with a 77 bytes OP_RETURN is refused, however with shorter information (e.g. 74 bytes) is accepted, though as much as 80 bytes ought to work.

What’s the protected restrict for use?

Per these references the utmost size is 80 bytes (83 for entire script) (since v 0.11):

https://stackoverflow.com/questions/24845429/maximum-size-of-data-bitcoin-op-return-tx-can-handle
https://developer.bitcoin.org/devguide/transactions.html#null-data

The under transaction produces error: {"error":"-26: scriptpubkey"}.
Comparable transactions with barely shorter OP_RETURN are wonderful.

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

{
    "data_hex": "535741503a ...",
    "script": "6a4d535741503a ...",
    "script_type": "null-data",
    "worth": 0
}

Be aware: use case is shopper for thorswap.finance cross-chain DEX.

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