{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:I2RJ6GS2KY3V4IG7HJ4LVRAREN","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":"ab580251bbe387ed8ed3cf16a754ddb4150b792aff93a61906b51491da6263b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-08-13T08:30:49Z","title_canon_sha256":"5f5b6b556dcec17da9faeda07175c1dc461d857d675a1b07695a0664e1581cac"},"schema_version":"1.0","source":{"id":"0908.1846","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.1846","created_at":"2026-05-18T03:23:58Z"},{"alias_kind":"arxiv_version","alias_value":"0908.1846v2","created_at":"2026-05-18T03:23:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.1846","created_at":"2026-05-18T03:23:58Z"},{"alias_kind":"pith_short_12","alias_value":"I2RJ6GS2KY3V","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"I2RJ6GS2KY3V4IG7","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"I2RJ6GS2","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:d02edb03aa3b7fac92d14f3655548f06a8bbb89bbb429b19ed9d90eae6248966","target":"graph","created_at":"2026-05-18T03:23:58Z","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"},"paper":{"abstract_excerpt":"It is shown that entanglement witnesses constructed via the family of spectral conditions are decomposable, i.e. cannot be used to detect bound entanglement. It supports several observations that bound entanglement reveals highly non-spectral features.","authors_text":"Andrzej Kossakowski, Dariusz Chruscinski, Gniewomir Sarbicki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-08-13T08:30:49Z","title":"Spectral conditions for entanglement witnesses vs. bound entanglement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.1846","kind":"arxiv","version":2},"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:f80187b66c870b6959dd2bee300cd34b8f1a34263edda77a05e829826ec379b3","target":"record","created_at":"2026-05-18T03:23:58Z","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":"ab580251bbe387ed8ed3cf16a754ddb4150b792aff93a61906b51491da6263b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-08-13T08:30:49Z","title_canon_sha256":"5f5b6b556dcec17da9faeda07175c1dc461d857d675a1b07695a0664e1581cac"},"schema_version":"1.0","source":{"id":"0908.1846","kind":"arxiv","version":2}},"canonical_sha256":"46a29f1a5a56375e20df3a78bac4112370a061689a088c9da3c03f4c72d6658e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"46a29f1a5a56375e20df3a78bac4112370a061689a088c9da3c03f4c72d6658e","first_computed_at":"2026-05-18T03:23:58.263027Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:58.263027Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yd3ayfKmOmohZ31TIOd4TCOcP0R8Vg4OTxx2vQcFlU55Dk/+Fw8Ro4lfcPgeejvgCXKYY1G9lL/zDDAOguLlDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:58.263773Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.1846","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f80187b66c870b6959dd2bee300cd34b8f1a34263edda77a05e829826ec379b3","sha256:d02edb03aa3b7fac92d14f3655548f06a8bbb89bbb429b19ed9d90eae6248966"],"state_sha256":"4e19fc3f8fca7b52997143f79ecfbbb38c2efa7a1611d21959fe191df443b1e5"}