{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:KZEQE2B64TTVIFO3GY33SZT2AV","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":"69afe2003be1572c44aefb2c0e2e70a6793cd0710453d1c377829b04f6f450e3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-15T14:04:11Z","title_canon_sha256":"63a57828b441077217e1fa5f2ebdd5a1034ad44e2de286bee2f02acf239e1dcc"},"schema_version":"1.0","source":{"id":"2605.15972","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.15972","created_at":"2026-05-20T00:01:47Z"},{"alias_kind":"arxiv_version","alias_value":"2605.15972v1","created_at":"2026-05-20T00:01:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.15972","created_at":"2026-05-20T00:01:47Z"},{"alias_kind":"pith_short_12","alias_value":"KZEQE2B64TTV","created_at":"2026-05-20T00:01:47Z"},{"alias_kind":"pith_short_16","alias_value":"KZEQE2B64TTVIFO3","created_at":"2026-05-20T00:01:47Z"},{"alias_kind":"pith_short_8","alias_value":"KZEQE2B6","created_at":"2026-05-20T00:01:47Z"}],"graph_snapshots":[{"event_id":"sha256:19428d633c83f85ff34dc05e0e7f256c8905e75734d9708f8eeaf0aa7aec3860","target":"graph","created_at":"2026-05-20T00:01:47Z","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":[{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-19T17:33:44.867549Z","status":"skipped","version":"1.0.0"},{"findings_count":0,"name":"claim_evidence","ran_at":"2026-05-19T17:01:55.688082Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2605.15972/integrity.json","findings":[],"snapshot_sha256":"bd4264da81f69482497ff10863cc1efed24addf3be431dd6a551d614233b68ba","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The gamma-ray emitting binary stellar system LS I +61 303 was observed with the Imaging X-ray Polarimetry Explorer (IXPE) on two successive orbits over orbital phases of 0.74 to 1.05. Polarization is detected at a significance of 4.2$\\sigma$ with an average polarization degree of $13.1\\% \\pm 3.0\\%$ in the 2-8~keV band after background subtraction. This is the second detection of polarization of the X-ray synchrotron emission from a gamma-ray binary and, again, suggests that the magnetic field in the particle acceleration region has a significant ordered component. The orbital motion on the sky","authors_text":"Andrea Gnarini, Daniel Golonka, Ioannis Liodakis, Joel B. Coley, Oliver J. Roberts, Philip Kaaret, Steven R. Ehlert, Sudip Chakraborty","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-15T14:04:11Z","title":"X-Ray Polarization from the Gamma-Ray Binary LS I +61 303"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.15972","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":"sha256:275bd5114f34291f502ec38a0d0d4788433d3c4bc02fc9971a6265d3a3945236","target":"record","created_at":"2026-05-20T00:01:47Z","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":"69afe2003be1572c44aefb2c0e2e70a6793cd0710453d1c377829b04f6f450e3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-15T14:04:11Z","title_canon_sha256":"63a57828b441077217e1fa5f2ebdd5a1034ad44e2de286bee2f02acf239e1dcc"},"schema_version":"1.0","source":{"id":"2605.15972","kind":"arxiv","version":1}},"canonical_sha256":"564902683ee4e75415db3637b9667a056468f171528fc46097c65d61101e810b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"564902683ee4e75415db3637b9667a056468f171528fc46097c65d61101e810b","first_computed_at":"2026-05-20T00:01:47.217303Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:01:47.217303Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gQAEZC1ZyaGGL2irXNTI68bimIdfZPvRC8awCnG2cEzg684ZPQKJG941WIYXGDAig2moDDQlbmNUX4Qkmm6VAQ==","signature_status":"signed_v1","signed_at":"2026-05-20T00:01:47.217816Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.15972","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:275bd5114f34291f502ec38a0d0d4788433d3c4bc02fc9971a6265d3a3945236","sha256:19428d633c83f85ff34dc05e0e7f256c8905e75734d9708f8eeaf0aa7aec3860"],"state_sha256":"69f2debefb0cfda2247671389428e56d17ac28427190629a54bca535ccd21966"}