Boundary / Recoverability-Constrained Systems and Continuity Science — Version 2.9.1

This publication presents Version 2.9.1 of Boundary, an integrated offline engineering, evidence-assurance, governance and research corpus developed within the Recoverability-Constrained Systems (RCS) / Continuity Science framework. The corpus investigates the preservation of recoverable futures, finite successor-space analysis, recoverability-constrained admissibility, recursive governance, distinction boundaries, irreversible transitions, accountable decision-making, evidentiary integrity, terminal conditions and continuing mechanisms for correction, recovery and lawful appeal. Version 2.9.1 extends the previous engineering release by introducing a distinct Personal Declaration Absolute Self-Closure Certificate — Zero to Zero. The certificate establishes personal declarative completion independently of external institutional recognition, agreement or action. Its completion does not constitute a determination of disputed facts, scientific causation, criminal responsibility, clinical outcomes or legally binding obligations. The edition combines the personal-declaration closure with the existing executable engineering architecture for truthful, non-circular, accountable and reopenable threshold decisions. I. Integrated theoretical and engineering framework The publication preserves the integrated Continuity Science corpus, including: Finite successor-space mathematical and computational models. Recoverability-constrained transition admissibility. Recursive governance and accountable decision architectures. Distinction-boundary and stopping-condition specifications. Terminal and non-terminal closure mechanisms. Evidence provenance, integrity and audit procedures. Adversarial verification and negative-test frameworks. Human rights, consent, privacy and remedy safeguards. Living-system and cross-domain research architectures. Offline software tools for bounded engineering verification. The included domain-specific materials form part of the integrated RCS research architecture, rather than independently certified applications. II. Personal declaration and public accountability The archive preserves the personal declaration authored in the name of Noelia Sofia Sanchez, together with two addenda addressing emerging neurotechnology and artificial-intelligence governance. The original declaration requests evidence-based public-health accountability, transparent scientific and regulatory records, clinical evaluation of suspected adverse effects, informed consent, independent safety review, lawful investigation, meaningful remedies and protection against unsupported causal attribution. The neurotechnology addendum extends these safeguards to mental privacy, bodily autonomy, research ethics, brain-computer interfaces, neuromodulation and emerging neurotechnological systems. The artificial-intelligence addendum proposes accountable oversight, incident investigation, informed consent, safeguards against coercion, recoverability plans, meaningful human appeal and independent verification of significant technological claims. These documents distinguish personal testimony and concern from independently verified facts, research hypotheses from established conclusions, and proposed normative principles from enacted law. III. Personal Declaration Absolute Self-Closure — Zero to Zero Version 2.9.1 adds an explicit certificate establishing that the declaration is complete as an authored expression of intentions, concerns, requests, proposed principles and evidentiary limits. The self-closure contains five conditions: Threshold closure: The personal act of declaration is complete within its stated scope. External administrative, scientific, clinical and legal processes remain separate. Non-circular closure: Completion does not depend on institutional recognition, another person's agreement, or confirmation that the external world has fulfilled the declaration's requests. Truthful closure: Personal completion does not establish unverified factual claims. Evidence, uncertainty, allegations, proposals and adjudicated findings remain distinct. Accountable closure: The declaration identifies its attributed author and records that formal signature and independent authentication have not been established within this archive. Reopenable closure: Voluntary amendment, material correction, credible new evidence, legitimate affected-person appeals and privacy or consent concerns may justify reopening or supplementing the substantive record. The formal stopping state is: PERSONAL_STATEMENT_COMPLETE This means that no further proclamation is necessary for the declaration to exist as a completed personal statement. The stopping state does not establish another person's obligations, authorize intervention or prevent lawful investigation, review or appeal. IV. Engineering closure and validation The inherited Version 2.9 engineering architecture incorporates offline verification for: Evidence-file integrity. Referenced proof obligations. Non-circular claim dependencies. Accountable owner, reviewer and challenger roles. Review and challenge disposition. Closure and reopening lifecycle transitions. Tamper-evident records. Unsupported certification claims. Unresolved external obligations. Machine-readable stopping conditions. The inherited release reports 41 successful new automated tests and 37 successful version-scoped tests from the previous engineering edition. Version 2.9.1 adds a machine-readable personal closure record, a verification utility, release documentation and an updated archive manifest. The archive's local integrity checks establish file consistency. They do not constitute independent scientific replication, external audit, authenticated signature or production-security certification. V. Contents and preservation The complete Version 2.9.1 ZIP contains 271 files. All 266 files from Version 2.9 are preserved, including the original declaration, its two addenda, software engines, evidence registers, governance specifications, synthetic demonstrations, adversarial tests and historical release records. Five additional files document the new personal closure edition. The closure certificate supplements rather than silently rewrites the three inherited declaration documents. VI. Scientific, clinical and legal limitations This publication does not establish covert neurotechnology deployment, hidden medical devices, undisclosed causal mechanisms, criminal wrongdoing, or a universally binding legal regime. Scientific and clinical propositions require appropriately qualified independent investigation. Legal responsibility requires assessment under applicable law and procedures. The software is an offline research and verification prototype, not a functioning autonomous global governance authority or a certified superintelligence. The personal declaration remains unsigned and not independently authenticated within this edition. VII. Threshold Non-Circular Separate Final Closure The publication distinguishes two bounded closure outcomes: Personal declaration closure: Complete as an expression of personal intention and authorship attribution, without requiring additional statements. Engineering release closure: Complete within the locally tested and documented verification scope. Independent scientific verification, jurisdiction-specific legal review, clinical assessment, institutional decisions and other external obligations remain open where applicable. The stopping rule is non-circular because neither closure outcome depends upon declaring its own unresolved external obligations satisfied. Closure is truthful because limitations and negative findings remain visible. Closure is accountable because responsibility and review requirements remain explicit. Closure is reopenable because material corrections, new evidence, reproducible defects, valid objections and legitimate appeals may justify further review. VIII. Publication purpose This edition is intended for research dissemination, prior-art documentation, public-interest discussion, technical reproducibility, interdisciplinary review and further independent evaluation. Its central contribution is an integrated research and engineering approach to bounded closure that preserves the distinction between what has been declared, what has been locally verified, what remains unknown and what may legitimately be reopened. Formal stopping statement: The personal declaration is complete. The engineering release is bounded and locally verified. External truth, independent accountability, lawful remedy and future correction remain open wherever the evidence or applicable process requires them.