{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:66JP53DZHSULBKFV7KL4G3TMFX","short_pith_number":"pith:66JP53DZ","canonical_record":{"source":{"id":"1511.07169","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-11-23T10:39:58Z","cross_cats_sorted":[],"title_canon_sha256":"9c7ff859b45c158daf5ed059d763132b81cad61ac5ae2c0f36e2aff6e901211d","abstract_canon_sha256":"542c9143a589afcd643439e6feca281ac70644e7bf4862ac2e72c46e92b532d4"},"schema_version":"1.0"},"canonical_sha256":"f792feec793ca8b0a8b5fa97c36e6c2dc29ac2c2e93b30d8324600e4bb4318ca","source":{"kind":"arxiv","id":"1511.07169","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07169","created_at":"2026-05-18T01:21:51Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07169v1","created_at":"2026-05-18T01:21:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07169","created_at":"2026-05-18T01:21:51Z"},{"alias_kind":"pith_short_12","alias_value":"66JP53DZHSUL","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"66JP53DZHSULBKFV","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"66JP53DZ","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:66JP53DZHSULBKFV7KL4G3TMFX","target":"record","payload":{"canonical_record":{"source":{"id":"1511.07169","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-11-23T10:39:58Z","cross_cats_sorted":[],"title_canon_sha256":"9c7ff859b45c158daf5ed059d763132b81cad61ac5ae2c0f36e2aff6e901211d","abstract_canon_sha256":"542c9143a589afcd643439e6feca281ac70644e7bf4862ac2e72c46e92b532d4"},"schema_version":"1.0"},"canonical_sha256":"f792feec793ca8b0a8b5fa97c36e6c2dc29ac2c2e93b30d8324600e4bb4318ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:51.655846Z","signature_b64":"t78fa16eHlPVyD2x9/VdFFI618XLW2DKdLIh+qwo4JwaDO0er1CzGhyVSbponV/kvSqqRt4FpI7h3MPFFSVfCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f792feec793ca8b0a8b5fa97c36e6c2dc29ac2c2e93b30d8324600e4bb4318ca","last_reissued_at":"2026-05-18T01:21:51.655346Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:51.655346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.07169","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":"2026-05-18T01:21:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tEWN/voaSP2m8eemrVSFvB+FyiOIYspwmSb+AfzxLoLblcwjMrPU/Zz0YfcKbyzdw8qbrdY5tuCp/4Rcger0Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:45:36.539019Z"},"content_sha256":"644ed8acd3379bb6e5c7a9d6d96b93619a5bcea606ecfc25d92afcb3a4a901c4","schema_version":"1.0","event_id":"sha256:644ed8acd3379bb6e5c7a9d6d96b93619a5bcea606ecfc25d92afcb3a4a901c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:66JP53DZHSULBKFV7KL4G3TMFX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of a fast, broad, transient outflow in NGC 985","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"(2) STScI, (3) SRON Utrecht), ESAC, G. A. Kriss (2), J. C. Ely (2) ((1) XMM-Newton SOC, J. Ebrero (1), J. S. Kaastra (3)","submitted_at":"2015-11-23T10:39:58Z","abstract_excerpt":"We observed the Seyfert 1 galaxy NGC 985 on multiple occasions to search for variability in its UV and X-ray absorption features in order to establish their location and physical properties. We use XMM-Newton to obtain X-ray spectra using the EPIC-pn camera, and the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) to obtain UV spectra. Our observations are simultaneous and span timescales of days to years. We find that the soft X-ray obscuration that absorbed the low energy continuum of NGC 985 in August 2013 diminished greatly by January 2015. The total X-ray column densi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07169","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":"2026-05-18T01:21:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O9Qj++eFNFA8RCrivTufiWEpKk0d9PQYqrPnleJWfdrYPM/2lZJMcbcJrRTj3JXydDMLybiPs8DR7kRLyVv6BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:45:36.539700Z"},"content_sha256":"6a8f829a97d10f5e07a038b2a57a56ecd0b9a1756f999908b5ef960ce94dab07","schema_version":"1.0","event_id":"sha256:6a8f829a97d10f5e07a038b2a57a56ecd0b9a1756f999908b5ef960ce94dab07"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/66JP53DZHSULBKFV7KL4G3TMFX/bundle.json","state_url":"https://pith.science/pith/66JP53DZHSULBKFV7KL4G3TMFX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/66JP53DZHSULBKFV7KL4G3TMFX/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":"2026-05-25T18:45:36Z","links":{"resolver":"https://pith.science/pith/66JP53DZHSULBKFV7KL4G3TMFX","bundle":"https://pith.science/pith/66JP53DZHSULBKFV7KL4G3TMFX/bundle.json","state":"https://pith.science/pith/66JP53DZHSULBKFV7KL4G3TMFX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/66JP53DZHSULBKFV7KL4G3TMFX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:66JP53DZHSULBKFV7KL4G3TMFX","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":"542c9143a589afcd643439e6feca281ac70644e7bf4862ac2e72c46e92b532d4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-11-23T10:39:58Z","title_canon_sha256":"9c7ff859b45c158daf5ed059d763132b81cad61ac5ae2c0f36e2aff6e901211d"},"schema_version":"1.0","source":{"id":"1511.07169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07169","created_at":"2026-05-18T01:21:51Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07169v1","created_at":"2026-05-18T01:21:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07169","created_at":"2026-05-18T01:21:51Z"},{"alias_kind":"pith_short_12","alias_value":"66JP53DZHSUL","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"66JP53DZHSULBKFV","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"66JP53DZ","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:6a8f829a97d10f5e07a038b2a57a56ecd0b9a1756f999908b5ef960ce94dab07","target":"graph","created_at":"2026-05-18T01:21:51Z","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 observed the Seyfert 1 galaxy NGC 985 on multiple occasions to search for variability in its UV and X-ray absorption features in order to establish their location and physical properties. We use XMM-Newton to obtain X-ray spectra using the EPIC-pn camera, and the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) to obtain UV spectra. Our observations are simultaneous and span timescales of days to years. We find that the soft X-ray obscuration that absorbed the low energy continuum of NGC 985 in August 2013 diminished greatly by January 2015. The total X-ray column densi","authors_text":"(2) STScI, (3) SRON Utrecht), ESAC, G. A. Kriss (2), J. C. Ely (2) ((1) XMM-Newton SOC, J. Ebrero (1), J. S. Kaastra (3)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-11-23T10:39:58Z","title":"Discovery of a fast, broad, transient outflow in NGC 985"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07169","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":"sha256:644ed8acd3379bb6e5c7a9d6d96b93619a5bcea606ecfc25d92afcb3a4a901c4","target":"record","created_at":"2026-05-18T01:21:51Z","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":"542c9143a589afcd643439e6feca281ac70644e7bf4862ac2e72c46e92b532d4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-11-23T10:39:58Z","title_canon_sha256":"9c7ff859b45c158daf5ed059d763132b81cad61ac5ae2c0f36e2aff6e901211d"},"schema_version":"1.0","source":{"id":"1511.07169","kind":"arxiv","version":1}},"canonical_sha256":"f792feec793ca8b0a8b5fa97c36e6c2dc29ac2c2e93b30d8324600e4bb4318ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f792feec793ca8b0a8b5fa97c36e6c2dc29ac2c2e93b30d8324600e4bb4318ca","first_computed_at":"2026-05-18T01:21:51.655346Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:51.655346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t78fa16eHlPVyD2x9/VdFFI618XLW2DKdLIh+qwo4JwaDO0er1CzGhyVSbponV/kvSqqRt4FpI7h3MPFFSVfCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:51.655846Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.07169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:644ed8acd3379bb6e5c7a9d6d96b93619a5bcea606ecfc25d92afcb3a4a901c4","sha256:6a8f829a97d10f5e07a038b2a57a56ecd0b9a1756f999908b5ef960ce94dab07"],"state_sha256":"7d98ee013958d6d831ae70521756a0b9ba330e0d7fbf57b5dbf7a9400c1dccc2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e+uqYk06/JTOoqHo9r6dRafAOVzTpC22V3NKqgRfOQXUrUNEV1m89Iq3OqnVazwWhqRdfrjvh0fncJJFaG7cBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:45:36.543285Z","bundle_sha256":"977378396a8eca9036b0f6af675c933e3c0c110e1cbb80d4db768728e12c33fa"}}