List decoding explicit NW reconstruction programs #
This layer composes checked, encoded NW reconstruction with a finite Boolean
list code. Beyond producing a bounded candidate set containing the source
message, it stores a selecting decoder index in ceiling-logarithmic space and
materializes a program that decodes exactly to the source message. Its complete
codec includes polarity, hybrid coordinate, reconstruction data, and list
index, leaving only ambient parameters external. The family specialization
matches inverse accuracy to reconstruction advantage and converts polynomial
list size into a concrete logarithmic description bound, including the
canonical choice for inverse-polynomially represented test density. The final
decoder layer turns the complete encoding into a literal bitstring certificate
and, for any realizing TM, a machine-relative time-bounded Kolmogorov bound.
Any arbitrary machine satisfying the generic efficient-universality interface
inherits that bound with additive description and polynomial clock overhead.
An additional family-uniform decoder interface uses one machine for every
ambient instance and exposes the exact self-delimiting cost of encoding the
design and test, without conflating explicit input with oracle access.
Separately, an oracle decoder realization keeps the design and code fixed but
handles every finite test through its canonical membership oracle, yielding a
machine-relative oracle C^{t,A} certificate with no test bits in the program.
Every oracle machine satisfying the oracle-uniform efficient-universality
interface inherits those bounds with constants chosen before the test oracle.
A family-uniform oracle decoder goes further: one machine handles every code
parameter and design, charging an explicit design encoding while retaining the
test as oracle access.
The flat Boolean payload of an indexed reconstruction program consists of
the reconstruction data followed by exactly clog₂(listSize) index bits.
Complete indexed-program encoding accounts exactly for polarity, hybrid coordinate, reconstruction data, and list-decoder index.
The concatenated reconstruction-data and list-index encoding round-trips when polarity and hybrid coordinate are supplied as codec metadata.
Complete indexed reconstruction encoding round-trips from its ambient design and list-size parameters alone.
Decoding and semantically evaluating a complete indexed-program bit string recovers the program's selected source message.
Any bounded bitstring certificate for a realized indexed-message decoder gives the corresponding time-bounded Kolmogorov upper bound relative to that arbitrary decoder machine.
A bounded indexed reconstruction certificate gives an oracle-relative time-bounded Kolmogorov upper bound when one decoder machine handles every finite test through its canonical membership oracle. The test truth table occupies no program bits.
Every efficiently universal oracle machine inherits the decoded description bound using one compiler constant and polynomial clock shared by all finite test oracles.
Every efficiently universal machine inherits the decoded-description bound with the universal compiler's additive constant and an explicit polynomially larger clock. This is independent of any particular universal-machine implementation.
Explicit-program agreement with an encoded message is exactly the generic Boolean list-code agreement statistic.
Sufficient stored-predictor agreement puts the original source message in
the decoder candidate set, whose cardinality is at most listSize.
Sufficient agreement materializes an indexed reconstruction program that decodes exactly to the original source message. Its extra Boolean payload is exactly one ceiling-logarithmic list index.
A checked certificate yields an indexed reconstruction program that recovers the source message and whose actual Boolean payload includes the ceiling-logarithmic decoder index.
A checked certificate yields a complete, round-tripping indexed program that recovers the source message. Its bound accounts for polarity, hybrid coordinate, reconstruction data, and decoder-list index.
A checked reconstruction certificate yields an actual short bit string that the fixed semantic decoder maps to the original source message.
Any checked certificate at agreement 1/2 + margin produces a bounded
flat payload and a decoder list of size at most listSize containing the
original source message.
Finite semantic core of Hirahara's list-decoded NW reconstruction: with probability at least one half, canonical checked sampling returns a bounded payload whose predictor decodes to a bounded list containing the source message.
With probability at least one half, canonical checked sampling returns a
certificate that extends to an indexed program decoding exactly to the source
message. The actual Boolean payload pays only clog₂(listSize) bits beyond
the reconstruction payload.
With probability at least one half, canonical checked sampling yields a complete indexed encoding that round-trips and decodes exactly to the source message, with every program-specific bit explicitly charged.
The list-decoded reconstruction theorem with generator complexity discharged by direct short-seed descriptions.
The exact indexed-program reconstruction theorem with generator complexity discharged by direct short-seed descriptions.
The fully encoded indexed reconstruction theorem with generator complexity discharged by direct short-seed descriptions.