{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FXWA44DAYR43WCPXGJC2Q7LS3C","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"595d35fd5778c25595e3396dc7c3eb02abba0e803929cc9564cef0b52f168e1d","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-04-20T05:25:37Z","title_canon_sha256":"eea793466f8c2da9963e4560a55df1c40d0c02cf1bb3ac482221b24d32b23919"},"schema_version":"1.0","source":{"id":"2604.18652","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.18652","created_at":"2026-05-20T00:05:44Z"},{"alias_kind":"arxiv_version","alias_value":"2604.18652v2","created_at":"2026-05-20T00:05:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.18652","created_at":"2026-05-20T00:05:44Z"},{"alias_kind":"pith_short_12","alias_value":"FXWA44DAYR43","created_at":"2026-05-20T00:05:44Z"},{"alias_kind":"pith_short_16","alias_value":"FXWA44DAYR43WCPX","created_at":"2026-05-20T00:05:44Z"},{"alias_kind":"pith_short_8","alias_value":"FXWA44DA","created_at":"2026-05-20T00:05:44Z"}],"graph_snapshots":[{"event_id":"sha256:93fcbf533b17edcfa488bb9ca1a3772484d55f708b2eaae7512e93db0b9cfeb0","target":"graph","created_at":"2026-05-20T00:05:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Arbiter-K enforces security as a microarchitectural property, achieving 76% to 95% unsafe interception for a 92.79% absolute gain over native policies."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"That probabilistic outputs from the underlying model can be reliably and losslessly reified into discrete instructions via the Semantic ISA without introducing new failure modes or missing critical context."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Arbiter-K is a new execution architecture that treats LLMs as probabilistic processors inside a neuro-symbolic kernel with a semantic ISA to enable deterministic security enforcement and unsafe trajectory interdiction in agentic AI."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Arbiter-K enforces security as a microarchitectural property in agentic AI by reifying model outputs through a Semantic ISA into taint-tracked discrete instructions."}],"snapshot_sha256":"7ab37a4bfa663441fa5b4fb086b89bc5510779b37048a03663f5bcb190020e8f"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2604.18652/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The transition of agentic AI from brittle prototypes to production systems is stalled by a pervasive crisis of craft. We suggest that the prevailing orchestration paradigm-delegating the system control loop to large language models and merely patching with heuristic guardrails-is the root cause of this fragility. Instead, we propose Arbiter-K, a Governance-First execution architecture that reconceptualizes the underlying model as a Probabilistic Processing Unit encapsulated by a deterministic, neuro-symbolic kernel. Arbiter-K implements a Semantic Instruction Set Architecture (ISA) to reify pr","authors_text":"Changran Xu, Fangxin Liu, Haomin Li, Jianrong Ding, Li Jiang, Lingjun Chen, Qiang Xu, Shu Chi, XiangYu Wen, Xiaoyu Xu, Yuang Zhao, Zeju Li","cross_cats":["cs.AI"],"headline":"Arbiter-K enforces security as a microarchitectural property in agentic AI by reifying model outputs through a Semantic ISA into taint-tracked discrete instructions.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-04-20T05:25:37Z","title":"From Craft to Kernel: A Governance-First Execution Architecture and Semantic ISA for Agentic Computers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2604.18652","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-10T04:48:32.413764Z","id":"7beb8719-e821-445a-a06d-09935ca951ec","model_set":{"reader":"grok-4.3"},"one_line_summary":"Arbiter-K is a new execution architecture that treats LLMs as probabilistic processors inside a neuro-symbolic kernel with a semantic ISA to enable deterministic security enforcement and unsafe trajectory interdiction in agentic AI.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Arbiter-K enforces security as a microarchitectural property in agentic AI by reifying model outputs through a Semantic ISA into taint-tracked discrete instructions.","strongest_claim":"Arbiter-K enforces security as a microarchitectural property, achieving 76% to 95% unsafe interception for a 92.79% absolute gain over native policies.","weakest_assumption":"That probabilistic outputs from the underlying model can be reliably and losslessly reified into discrete instructions via the Semantic ISA without introducing new failure modes or missing critical context."}},"verdict_id":"7beb8719-e821-445a-a06d-09935ca951ec"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:13c0c2294c01b3251faa2fa2ac09aeaca6d019a6576656a590ff173181a54230","target":"record","created_at":"2026-05-20T00:05:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"595d35fd5778c25595e3396dc7c3eb02abba0e803929cc9564cef0b52f168e1d","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2026-04-20T05:25:37Z","title_canon_sha256":"eea793466f8c2da9963e4560a55df1c40d0c02cf1bb3ac482221b24d32b23919"},"schema_version":"1.0","source":{"id":"2604.18652","kind":"arxiv","version":2}},"canonical_sha256":"2dec0e7060c479bb09f73245a87d72d8aa4f1179124286a310dcd3c401237150","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2dec0e7060c479bb09f73245a87d72d8aa4f1179124286a310dcd3c401237150","first_computed_at":"2026-05-20T00:05:44.991369Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:05:44.991369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yxjnYAYFcsAbjlGe71hBJmgWdwoGthJw2RsSz3P5jgC9pWHqrqNgIP3yAbttD+JmShvgLM+3GenGj/bNrtV+Ag==","signature_status":"signed_v1","signed_at":"2026-05-20T00:05:44.992200Z","signed_message":"canonical_sha256_bytes"},"source_id":"2604.18652","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13c0c2294c01b3251faa2fa2ac09aeaca6d019a6576656a590ff173181a54230","sha256:93fcbf533b17edcfa488bb9ca1a3772484d55f708b2eaae7512e93db0b9cfeb0"],"state_sha256":"657b2f5778a5aaa6871fef30f678608b0d4d2ae775e1c79ee36d513df7f600e4"}