Correct the specification of the flat encoding of constr tags
#7154
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constr tagsconstr tags
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Jun 18, 2025
| $$ As in Appendix~\ref{appendix:data-cbor-encoding}, $\Nab{a}{b}$ | ||
| denotes the closed interval of integers $\{n \in \Z : a \leq n \leq b\}$. Note | ||
| that $n$ here is a variable (not a fixed label) so we are defining whole | ||
| families of encoders $\E_1, \E_2, \E_3, \ldots$ and and decoders $\D_1, \D_2, |
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Fixes cardano-scaling/cardano-blueprint#32
Fixes https://github.com/IntersectMBO/plutus-private/issues/1620
The specification said that tags in
constrterms should be encoded using a bitstring of length 64. This isincorrect: they should be encoded using the standard variable-length encoder for natural numbers.
See also #7149, which made the textual parser check tag values more carefully.