Datasets:
File size: 2,055 Bytes
e1ced61 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | """``REDACT_SOLID_V1`` — remove an observed value while keeping node identity.
The node's identity/position remains available to the renderer as a stable
redaction anchor, but its value is removed from the transformed epistemic world.
Consequently an executor cannot read hidden evidence through a privileged
structured-state side channel. Alternative completion worlds restore different
values under the same visibility marker and must render byte-identically.
"""
from __future__ import annotations
from typing import Any
from ..sources.base import World
from ..sources.world_ops import node_kind, world_sha256
from .base import (
InterventionError,
OperatorName,
TransformedWorld,
remove_observed_value,
set_hidden,
transformed_hash,
)
_NAME: OperatorName = "REDACT_SOLID_V1"
class RedactSolidOperator:
"""Hide ``target_node``'s pixels without removing it from the world."""
name = _NAME
def apply(
self,
world: World,
target_node: str,
*,
seed: int,
**_kwargs: Any,
) -> TransformedWorld:
if node_kind(world, target_node) is None:
raise InterventionError(f"REDACT_SOLID_V1: target {target_node!r} is not a world node")
hidden = frozenset({target_node})
new_world = set_hidden(remove_observed_value(world, target_node), hidden)
return TransformedWorld(
world=new_world,
operator=_NAME,
target_node=target_node,
seed=seed,
transformed_world_sha256=transformed_hash(
operator=_NAME,
target_node=target_node,
seed=seed,
source_world_sha256=world_sha256(world),
transformed_world_sha256=world_sha256(new_world),
hidden_nodes=hidden,
substitute_value=None,
),
hidden_nodes=hidden,
substitute_value=None,
description=f"redact-solid {target_node}",
)
__all__ = ["RedactSolidOperator"]
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