# Research context PFABC is a proposed formal framework and experimental software contribution. This package does not establish peer review, empirical validation of its bridge registry, or improved human reasoning. Its code can implement a stated rule correctly while the scientific usefulness of that rule remains open. ## Relevant primary literature - Patrick Butlin and colleagues, [Consciousness in Artificial Intelligence: Insights from the Science of Consciousness](https://arxiv.org/abs/2308.08708) (2023). This research report derives indicators from several scientific theories and discusses assessment of AI systems. Its claims about systems available at that time must not be presented as observations of current models. - Patrick Butlin and colleagues, [Identifying indicators of consciousness in AI systems](https://doi.org/10.1016/j.tics.2025.10.011) (2025). This article develops a theory-based indicator approach while discussing uncertainty and further research. Its indicator methodology is related context, not validation or endorsement of PFABC's specific rules or registry. Primary sources checked September 7, 2026. These references are an entry point, not an exhaustive review or a claim of scientific consensus on PFABC. ## Assumptions to keep visible The supplied formal specification makes operating modes and theory choices explicit. Its target-realist mode adopts a non-eliminativist prior concerning protected presence-for. The prior is not evidence that this target exists or that a particular system has it. Other modes frame the target differently. The conversation exercise can be used without endorsing that metaphysical prior. The registry's indicators, thresholds, and links are part of this proposed implementation. A configured threshold is not automatically an empirically calibrated threshold. A bridge declared as passed is not a test conducted by the software. The strength and relevance of the underlying observations still need scientific assessment. The learning task is symmetrical: preserve justified bounded capabilities, identify unsupported stronger attributions, and avoid treating missing evidence or an AI's denial as proof of absence. Testimony can be relevant; its credibility for the particular inference requires an argument. ## Contribution and open questions This release makes records, interpretations, assumptions, revisions, and conditional evaluations inspectable. A useful next evaluation is whether people can transfer those distinctions to a new case without being coached. The [proposed pilot](PILOT_PROTOCOL.md) measures that separately from software tests. Neither a passing test suite nor a favorable AI review establishes that effect.