{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:AD5FIU7C6GPUSQ4LIXCS47A7ZT","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":"5fcd9787fd318d6e46b7ed4fabe5ced9ff355fe5159b06a34b36ce196c9f324a","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-07-09T14:36:47Z","title_canon_sha256":"1fe4c0c1f3112be2640612c73f21ba7b856f75a32b60a7548b20876610d98d43"},"schema_version":"1.0","source":{"id":"1207.2063","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.2063","created_at":"2026-05-18T01:56:26Z"},{"alias_kind":"arxiv_version","alias_value":"1207.2063v1","created_at":"2026-05-18T01:56:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.2063","created_at":"2026-05-18T01:56:26Z"},{"alias_kind":"pith_short_12","alias_value":"AD5FIU7C6GPU","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AD5FIU7C6GPUSQ4L","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AD5FIU7C","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:67650301f4d57816ec3b833e870089b60c7e3dd31c0ff38e512055089b10ce50","target":"graph","created_at":"2026-05-18T01:56:26Z","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":"The capability of NuSTAR to detect polarization in the Compton scattering regime (>50 keV) has been investigated. The NuSTAR mission, flown on June 2012 a Low Earth Orbit (LEO), provides a unique possibility to confirm the findings of INTEGRAL on the polarization of cosmic sources in the hard X-rays. Each of the two focal plane detectors are high resolution pixellated CZT arrays, sensitive in the energy range ~ 3 - 80 keV. These units have intrinsic polarization capabilities when the proper information on the double events is transmitted on ground. In this case it will be possible to detect po","authors_text":"Andreas Zoglauer, B. Grefenstette, Fiona A. Harrison, Kristin K. Madsen, Lorenzo Natalucci, Matteo Perri, Paolo Giommi, Simone Lotti, Simonetta Puccetti","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-07-09T14:36:47Z","title":"Polarization studies with NuSTAR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2063","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":"sha256:0f54e55b8968bbeb980d0efcef10997a9de14fc34693967cb878b70bb6fd63c7","target":"record","created_at":"2026-05-18T01:56:26Z","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":"5fcd9787fd318d6e46b7ed4fabe5ced9ff355fe5159b06a34b36ce196c9f324a","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2012-07-09T14:36:47Z","title_canon_sha256":"1fe4c0c1f3112be2640612c73f21ba7b856f75a32b60a7548b20876610d98d43"},"schema_version":"1.0","source":{"id":"1207.2063","kind":"arxiv","version":1}},"canonical_sha256":"00fa5453e2f19f49438b45c52e7c1fcce671fad906be8bc8ef58353818f5d1f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00fa5453e2f19f49438b45c52e7c1fcce671fad906be8bc8ef58353818f5d1f4","first_computed_at":"2026-05-18T01:56:26.535400Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:26.535400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xZaLGubjzkydX6jArSGgAi8wl4k93VE3pxV8RL2hLgKV/Ejb0HGWoUoHgh2jMcE28XXtg1S9mnQfIC+iUMoiCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:26.536130Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.2063","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0f54e55b8968bbeb980d0efcef10997a9de14fc34693967cb878b70bb6fd63c7","sha256:67650301f4d57816ec3b833e870089b60c7e3dd31c0ff38e512055089b10ce50"],"state_sha256":"27e6e2bb391da8913f6a2233dff94c4a23aa52dffa18be188f24af5c737f4fc7"}