{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:GDPO5BJNALXBZ2STKCXTWRWMQY","short_pith_number":"pith:GDPO5BJN","canonical_record":{"source":{"id":"1411.0670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-11-03T21:00:05Z","cross_cats_sorted":[],"title_canon_sha256":"5f29b32bd3033ad6cd565c64ac89fb52ffc8ad89e90e36a776422d05e52bfefc","abstract_canon_sha256":"88011eebc07ab64858ed3653ea2e334508e4436d79e36d4c7b0c190a06e75438"},"schema_version":"1.0"},"canonical_sha256":"30deee852d02ee1cea5350af3b46cc8607ad79719a8136ab459595915414869a","source":{"kind":"arxiv","id":"1411.0670","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.0670","created_at":"2026-05-18T01:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1411.0670v1","created_at":"2026-05-18T01:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.0670","created_at":"2026-05-18T01:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"GDPO5BJNALXB","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GDPO5BJNALXBZ2ST","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GDPO5BJN","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:GDPO5BJNALXBZ2STKCXTWRWMQY","target":"record","payload":{"canonical_record":{"source":{"id":"1411.0670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-11-03T21:00:05Z","cross_cats_sorted":[],"title_canon_sha256":"5f29b32bd3033ad6cd565c64ac89fb52ffc8ad89e90e36a776422d05e52bfefc","abstract_canon_sha256":"88011eebc07ab64858ed3653ea2e334508e4436d79e36d4c7b0c190a06e75438"},"schema_version":"1.0"},"canonical_sha256":"30deee852d02ee1cea5350af3b46cc8607ad79719a8136ab459595915414869a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:46.857549Z","signature_b64":"ZVxauqINhAIXwkSNWTp0/Kw3ldsGV5ejfpP1L8XFyKW6JYTd4TfkUleQYyWutnyKnBZWgCn1dZqcLNXdrlOFDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30deee852d02ee1cea5350af3b46cc8607ad79719a8136ab459595915414869a","last_reissued_at":"2026-05-18T01:29:46.857012Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:46.857012Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.0670","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I/sFhhOR1BXg2S8zAEAvEKBq9/t6VWIE2cFIOBXJa7amFMIsUw0a4aoIcpyhjJQvZz5K8apydXdcWgiGCkt/DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:49:50.887342Z"},"content_sha256":"061f0a59306aeba80f96626bda190f350376dfd74885c7c91e59a2f17bbf350e","schema_version":"1.0","event_id":"sha256:061f0a59306aeba80f96626bda190f350376dfd74885c7c91e59a2f17bbf350e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:GDPO5BJNALXBZ2STKCXTWRWMQY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NuSTAR Spectroscopy of Multi-Component X-ray Reflection from NGC 1068","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"10), (10) INAF-Roma, (11) Southhampton, (12) Durham, (13) Caltech, (14) SSL-Berkeley, (15) Penn State, 16), (16) IGC-Penn State, (17) DTU Space, (18) INAF-Bologna, 19), (19) LLNL, 2, (20) Columbia Univ., (21) Dartmouth, (22) GSFC, (23) Universita Roma Tre, (24) UMd, (25) Concepcion, (26) Yale), (2) MAS, 3, 3), (3) EMBIGGEN Anillo, 4), (4) Space Science Institute, (5) Valparaiso, (6) JPL, (7) ETH Zurich, 8), (8) SNSF Fellow, (9) ASDC-ASI, Agnese Del Moro (12), Andrea Comastri (18), Andrea Marinucci (23), Bin Luo (15), Charles J. Hailey (20), C. Megan Urry (26), Craig B. Markwardt (22), Cristian Saez (24), Daniel Stern (6), David M. Alexander (12), Dominic J. Walton (6), Elizabeth Rivers (12), Ezequiel Treister (25, Finn E. Christensen (17), Fiona A. Harrison (12), Franz E. Bauer (1, Giorgio Matt (23) Jane R. Rigby (22), Michael J. Koss (7, Mislav Balokovic (12), Murray Brightman (12), Patricia Arevalo (5, Poshak Gandhi (11), Ryan Hickox (21), Simonetta Puccetti (9, Steve E. Boggs (14), William N. Brandt (15, William W. Craig (14, William W. Zhang (22) ((1) PUC-Chile","submitted_at":"2014-11-03T21:00:05Z","abstract_excerpt":"We report on observations of NGC1068 with NuSTAR, which provide the best constraints to date on its $>10$~keV spectral shape. We find no strong variability over the past two decades, consistent with its Compton-thick AGN classification. The combined NuSTAR, Chandra, XMM-Newton, and Swift-BAT spectral dataset offers new insights into the complex reflected emission. The critical combination of the high signal-to-noise NuSTAR data and a spatial decomposition with Chandra allow us to break several model degeneracies and greatly aid physical interpretation. When modeled as a monolithic (i.e., a sin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.0670","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hNfFDfAcXawCADeEOucQJEo8HlZnM8Y9CAmxi3pgg4GoTDizO38YSYwf7GAAbkjKMjLRS9wvcTojy+8oFThWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:49:50.888029Z"},"content_sha256":"d0ce3d643282d09397d7a786a68c18689b4a1e75de28f6874b5f743ee1497f1f","schema_version":"1.0","event_id":"sha256:d0ce3d643282d09397d7a786a68c18689b4a1e75de28f6874b5f743ee1497f1f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GDPO5BJNALXBZ2STKCXTWRWMQY/bundle.json","state_url":"https://pith.science/pith/GDPO5BJNALXBZ2STKCXTWRWMQY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GDPO5BJNALXBZ2STKCXTWRWMQY/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-27T05:49:50Z","links":{"resolver":"https://pith.science/pith/GDPO5BJNALXBZ2STKCXTWRWMQY","bundle":"https://pith.science/pith/GDPO5BJNALXBZ2STKCXTWRWMQY/bundle.json","state":"https://pith.science/pith/GDPO5BJNALXBZ2STKCXTWRWMQY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GDPO5BJNALXBZ2STKCXTWRWMQY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:GDPO5BJNALXBZ2STKCXTWRWMQY","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":"88011eebc07ab64858ed3653ea2e334508e4436d79e36d4c7b0c190a06e75438","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-11-03T21:00:05Z","title_canon_sha256":"5f29b32bd3033ad6cd565c64ac89fb52ffc8ad89e90e36a776422d05e52bfefc"},"schema_version":"1.0","source":{"id":"1411.0670","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.0670","created_at":"2026-05-18T01:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1411.0670v1","created_at":"2026-05-18T01:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.0670","created_at":"2026-05-18T01:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"GDPO5BJNALXB","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GDPO5BJNALXBZ2ST","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GDPO5BJN","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:d0ce3d643282d09397d7a786a68c18689b4a1e75de28f6874b5f743ee1497f1f","target":"graph","created_at":"2026-05-18T01:29:46Z","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 report on observations of NGC1068 with NuSTAR, which provide the best constraints to date on its $>10$~keV spectral shape. We find no strong variability over the past two decades, consistent with its Compton-thick AGN classification. The combined NuSTAR, Chandra, XMM-Newton, and Swift-BAT spectral dataset offers new insights into the complex reflected emission. The critical combination of the high signal-to-noise NuSTAR data and a spatial decomposition with Chandra allow us to break several model degeneracies and greatly aid physical interpretation. When modeled as a monolithic (i.e., a sin","authors_text":"10), (10) INAF-Roma, (11) Southhampton, (12) Durham, (13) Caltech, (14) SSL-Berkeley, (15) Penn State, 16), (16) IGC-Penn State, (17) DTU Space, (18) INAF-Bologna, 19), (19) LLNL, 2, (20) Columbia Univ., (21) Dartmouth, (22) GSFC, (23) Universita Roma Tre, (24) UMd, (25) Concepcion, (26) Yale), (2) MAS, 3, 3), (3) EMBIGGEN Anillo, 4), (4) Space Science Institute, (5) Valparaiso, (6) JPL, (7) ETH Zurich, 8), (8) SNSF Fellow, (9) ASDC-ASI, Agnese Del Moro (12), Andrea Comastri (18), Andrea Marinucci (23), Bin Luo (15), Charles J. Hailey (20), C. Megan Urry (26), Craig B. Markwardt (22), Cristian Saez (24), Daniel Stern (6), David M. Alexander (12), Dominic J. Walton (6), Elizabeth Rivers (12), Ezequiel Treister (25, Finn E. Christensen (17), Fiona A. Harrison (12), Franz E. Bauer (1, Giorgio Matt (23) Jane R. Rigby (22), Michael J. Koss (7, Mislav Balokovic (12), Murray Brightman (12), Patricia Arevalo (5, Poshak Gandhi (11), Ryan Hickox (21), Simonetta Puccetti (9, Steve E. Boggs (14), William N. Brandt (15, William W. Craig (14, William W. Zhang (22) ((1) PUC-Chile","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-11-03T21:00:05Z","title":"NuSTAR Spectroscopy of Multi-Component X-ray Reflection from NGC 1068"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.0670","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":"sha256:061f0a59306aeba80f96626bda190f350376dfd74885c7c91e59a2f17bbf350e","target":"record","created_at":"2026-05-18T01:29:46Z","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":"88011eebc07ab64858ed3653ea2e334508e4436d79e36d4c7b0c190a06e75438","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-11-03T21:00:05Z","title_canon_sha256":"5f29b32bd3033ad6cd565c64ac89fb52ffc8ad89e90e36a776422d05e52bfefc"},"schema_version":"1.0","source":{"id":"1411.0670","kind":"arxiv","version":1}},"canonical_sha256":"30deee852d02ee1cea5350af3b46cc8607ad79719a8136ab459595915414869a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30deee852d02ee1cea5350af3b46cc8607ad79719a8136ab459595915414869a","first_computed_at":"2026-05-18T01:29:46.857012Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:46.857012Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZVxauqINhAIXwkSNWTp0/Kw3ldsGV5ejfpP1L8XFyKW6JYTd4TfkUleQYyWutnyKnBZWgCn1dZqcLNXdrlOFDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:46.857549Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.0670","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:061f0a59306aeba80f96626bda190f350376dfd74885c7c91e59a2f17bbf350e","sha256:d0ce3d643282d09397d7a786a68c18689b4a1e75de28f6874b5f743ee1497f1f"],"state_sha256":"be421bc3a27a2fe80a87f84a50a79f80b97e0268657218fb09d85a526db2b8e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5QgjGkaraCiSRqObcCnijCtCKFpa8JLrfxTRWv133XPR0prz7buJjRnP6iH2MYaIrgOdIgtkah0mBCQZaV8SAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T05:49:50.891814Z","bundle_sha256":"c5812fbcfe20d291446080e7e4c0179cb2b3bcfb02dd9c88e501b79070d6a266"}}