{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:NI4O7SEJ5O5NVH2DVOESNIMC2W","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":"5543c2d6af99fe20e50a04b313df1528d3387b9c6f45f95a4ab469d6be2455a4","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-12T21:28:05Z","title_canon_sha256":"0c8010471a0d07065ec3ba268940bc1fb90470a0609062921eb0a8385f9e7036"},"schema_version":"1.0","source":{"id":"1605.03994","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.03994","created_at":"2026-05-18T01:07:16Z"},{"alias_kind":"arxiv_version","alias_value":"1605.03994v1","created_at":"2026-05-18T01:07:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.03994","created_at":"2026-05-18T01:07:16Z"},{"alias_kind":"pith_short_12","alias_value":"NI4O7SEJ5O5N","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"NI4O7SEJ5O5NVH2D","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"NI4O7SEJ","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:5d9d064f5094639406ead788fd468b2d88ad2e2d22810f46ae975771a4f630b2","target":"graph","created_at":"2026-05-18T01:07:16Z","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":"We present spectropolarimetric observations of the nearby Type Ia SN 2014J in M82 over six epochs: +0, +7, +23, +51, +77, +109, and +111 days with respect to B-band maximum. The strong continuum polarization, which is constant with time, shows a wavelength dependence unlike that produced by linear dichroism in Milky Way dust. The observed polarization may be due entirely to interstellar dust or include a circumstellar scattering component. We find that the polarization angle aligns with the magnetic field of the host galaxy, arguing for an interstellar origin. Additionally, we confirm a peak i","authors_text":"Amber L. Porter, Christopher Bilinski, Douglas C. Leonard, G. Grant Williams, Jennifer L. Hoffman, Leah Huk, Mark D. Leising, Nathan Smith, Paul Smith, Peter Milne","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-12T21:28:05Z","title":"Asymmetries in SN 2014J Near Maximum Light Revealed Through Spectropolarimetry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.03994","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:b7bda945493bcb158b6e8066f4cd6c76b581e98bb297fe238cacc7441364dac9","target":"record","created_at":"2026-05-18T01:07:16Z","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":"5543c2d6af99fe20e50a04b313df1528d3387b9c6f45f95a4ab469d6be2455a4","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-12T21:28:05Z","title_canon_sha256":"0c8010471a0d07065ec3ba268940bc1fb90470a0609062921eb0a8385f9e7036"},"schema_version":"1.0","source":{"id":"1605.03994","kind":"arxiv","version":1}},"canonical_sha256":"6a38efc889ebbada9f43ab8926a182d5a7aed9965556b77bfefbfef87fdd93f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6a38efc889ebbada9f43ab8926a182d5a7aed9965556b77bfefbfef87fdd93f2","first_computed_at":"2026-05-18T01:07:16.504813Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:16.504813Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KN4mKuXA6ehP1SPTS5+yVbhyt0R7E6E2EDpKX7YNUy0YVIIOginhGKWNg7oexnwNybRDlC0owzKc+2Nx2tIJCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:16.505231Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.03994","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7bda945493bcb158b6e8066f4cd6c76b581e98bb297fe238cacc7441364dac9","sha256:5d9d064f5094639406ead788fd468b2d88ad2e2d22810f46ae975771a4f630b2"],"state_sha256":"40ce020543ea3c7bd3228415f9dea35562610c42d3220ba2fc4ec3c022ffbca8"}