{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:EO762BSJ5RAOYORA24RGMKU3VR","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":"67b0420e6ca1732a3e7b2210997d87d49c19c7e77e66aed3f6bfa04fdacc2119","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-15T11:46:28Z","title_canon_sha256":"02f93388cbc05de6667cdcfcb3dbd098e03331f097a71e99f7e16664fdb7e9c2"},"schema_version":"1.0","source":{"id":"1510.04477","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.04477","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"arxiv_version","alias_value":"1510.04477v1","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.04477","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"pith_short_12","alias_value":"EO762BSJ5RAO","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"EO762BSJ5RAOYORA","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"EO762BSJ","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:3881cd3647783324a97628c7d6c6010b1a5af6955ebbe659660608491c4c6bba","target":"graph","created_at":"2026-05-18T01:22:35Z","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 a broad-band (~0.3-70 keV) spectral and temporal analysis of NuSTAR observations of the luminous infrared galaxy NGC 6240, combined with archival Chandra, XMM-Newton and BeppoSAX data. NGC 6240 is a galaxy in a relatively early merger state with two distinct nuclei separated by ~1.\"5. Previous Chandra observations have resolved the two nuclei, showing that they are both active and obscured by Compton-thick material. Although they cannot be resolved by NuSTAR, thanks to the unprecedented quality of the NuSTAR data at energies >10 keV, we clearly detect, for the first time, both the p","authors_text":"A. Annuar, A. Comastri, A. Marinucci, B. Luo, C. J. Hailey, C. M. Urry, C. Ricci, D. J. Walton, D. M. Alexander, D. Stern, F. A. Harrison, F. E. Bauer, F. E. Christensen, F. Fiore, L. Zappacosta, M. Balokovi\\'c, M. Brightman, M. J. Koss, P. Ar\\'Evalo, P. Gandhi, S. E. Boggs, S. La Massa, S. Puccetti, W. N. Brandt, W. W. Craig, W. Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-15T11:46:28Z","title":"The hard X-ray emission of the luminous infrared galaxy NGC 6240 as observed by NuSTAR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.04477","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:cc76af7b5debb12d87ee5ba307d2bfcf92305a6fd9ed5c492bd68f3b0d4434bc","target":"record","created_at":"2026-05-18T01:22:35Z","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":"67b0420e6ca1732a3e7b2210997d87d49c19c7e77e66aed3f6bfa04fdacc2119","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-10-15T11:46:28Z","title_canon_sha256":"02f93388cbc05de6667cdcfcb3dbd098e03331f097a71e99f7e16664fdb7e9c2"},"schema_version":"1.0","source":{"id":"1510.04477","kind":"arxiv","version":1}},"canonical_sha256":"23bfed0649ec40ec3a20d722662a9bac51ddcfab3a0fb6b583c214a2dfd22799","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23bfed0649ec40ec3a20d722662a9bac51ddcfab3a0fb6b583c214a2dfd22799","first_computed_at":"2026-05-18T01:22:35.322655Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:35.322655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oLcvnZwooxPuPvPP/qHL/GtdS0UvR88iLcF4Th1yYkPNEWPhoVp2ZfH2M8wZverPZBTtwCDOioioa1fgYpSfBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:35.323020Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.04477","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc76af7b5debb12d87ee5ba307d2bfcf92305a6fd9ed5c492bd68f3b0d4434bc","sha256:3881cd3647783324a97628c7d6c6010b1a5af6955ebbe659660608491c4c6bba"],"state_sha256":"fc2eb0899bce17d76eb8cbd2d38f12a871699b196c6aa23067c9cbd31f80960a"}