{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:XSPD5BUMVVDQJVVUMW3GH4JW5Z","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":"bd39688334a67f29b160ed03c5f74b3d47f12813e788e1955969b3e1d0eaa94a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-19T18:45:18Z","title_canon_sha256":"09a645ffd63f7cce0576febb9b6333be2dd09ef7a84eb3a7922f40f0dbfd6aeb"},"schema_version":"1.0","source":{"id":"2606.21684","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.21684","created_at":"2026-06-23T01:13:18Z"},{"alias_kind":"arxiv_version","alias_value":"2606.21684v1","created_at":"2026-06-23T01:13:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.21684","created_at":"2026-06-23T01:13:18Z"},{"alias_kind":"pith_short_12","alias_value":"XSPD5BUMVVDQ","created_at":"2026-06-23T01:13:18Z"},{"alias_kind":"pith_short_16","alias_value":"XSPD5BUMVVDQJVVU","created_at":"2026-06-23T01:13:18Z"},{"alias_kind":"pith_short_8","alias_value":"XSPD5BUM","created_at":"2026-06-23T01:13:18Z"}],"graph_snapshots":[{"event_id":"sha256:836cf3cbd83295c67426491197c7641fc5f8c0abcb05232c798d3e25c8be0e3f","target":"graph","created_at":"2026-06-23T01:13:18Z","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":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.21684/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose and analytically demonstrate that the eigenphases of the scattering matrix provide direct, phase-sensitive signatures of exceptional points in open PT-symmetric systems. Using a one-dimensional PT-symmetric quantum dimer with balanced gain and loss, coupled to continuum leads, we track the evolution of the scattering eigenphases across the PT-exact to PT-broken transition. The imaginary parts of the eigenphases develop localized structures of opposite sign as the exceptional point is approached, reflecting the emergence of gain/loss asymmetry in the scattering eigenmodes. We introdu","authors_text":"J. Col\\'in-G\\'alvez, V. Dom\\'inguez-Rocha","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-19T18:45:18Z","title":"Exceptional Points revealed by the integrated imaginary scattering eigenphase"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.21684","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1c887fdbb2367e50ee7e1b98914f18b35f6dccbb82b3507d13e48fec2680fcdd","target":"record","created_at":"2026-06-23T01:13:18Z","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":"bd39688334a67f29b160ed03c5f74b3d47f12813e788e1955969b3e1d0eaa94a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-19T18:45:18Z","title_canon_sha256":"09a645ffd63f7cce0576febb9b6333be2dd09ef7a84eb3a7922f40f0dbfd6aeb"},"schema_version":"1.0","source":{"id":"2606.21684","kind":"arxiv","version":1}},"canonical_sha256":"bc9e3e868cad4704d6b465b663f136ee786f716afc2826770fd32ad20f9418fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc9e3e868cad4704d6b465b663f136ee786f716afc2826770fd32ad20f9418fe","first_computed_at":"2026-06-23T01:13:18.845450Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T01:13:18.845450Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jYx9MdXO4oxilXpTB4uCYMaG6FRnrr6zJVoAj71kdRIw+/mjzqH4JgeDTKSzGGJ5/pOBjWb1jnhF/d/LOrijBw==","signature_status":"signed_v1","signed_at":"2026-06-23T01:13:18.845894Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.21684","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c887fdbb2367e50ee7e1b98914f18b35f6dccbb82b3507d13e48fec2680fcdd","sha256:836cf3cbd83295c67426491197c7641fc5f8c0abcb05232c798d3e25c8be0e3f"],"state_sha256":"a519e482b8a41f6866891aaeeccb6746162bffa87aeddfbf46464b7377e27882"}