{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:7YJIZIBV2I65KE54IBZIRJX6RD","short_pith_number":"pith:7YJIZIBV","canonical_record":{"source":{"id":"2412.11178","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-15T13:04:48Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"15c6a9a048127375f2e5cd246b466e397515592f53a61cfee47ccf2d184e0df8","abstract_canon_sha256":"31beddcd30ecacf16658402f12035dd9bc7e9dca6c33e43bba62541d4913ff3e"},"schema_version":"1.0"},"canonical_sha256":"fe128ca035d23dd513bc407288a6fe88d39755320a9c81c3b1f257088e896820","source":{"kind":"arxiv","id":"2412.11178","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.11178","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"arxiv_version","alias_value":"2412.11178v1","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.11178","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"pith_short_12","alias_value":"7YJIZIBV2I65","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"pith_short_16","alias_value":"7YJIZIBV2I65KE54","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"pith_short_8","alias_value":"7YJIZIBV","created_at":"2026-07-05T10:31:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:7YJIZIBV2I65KE54IBZIRJX6RD","target":"record","payload":{"canonical_record":{"source":{"id":"2412.11178","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-15T13:04:48Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"15c6a9a048127375f2e5cd246b466e397515592f53a61cfee47ccf2d184e0df8","abstract_canon_sha256":"31beddcd30ecacf16658402f12035dd9bc7e9dca6c33e43bba62541d4913ff3e"},"schema_version":"1.0"},"canonical_sha256":"fe128ca035d23dd513bc407288a6fe88d39755320a9c81c3b1f257088e896820","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:31:25.940483Z","signature_b64":"naqkTPuUKEMEyJKucDSyMfUs0OkOgO5zXN/5WRqRQRpHCYVuM/rwii2A4UmonKiAjaECgEsHfJ2nLiHyOORVBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe128ca035d23dd513bc407288a6fe88d39755320a9c81c3b1f257088e896820","last_reissued_at":"2026-07-05T10:31:25.939731Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:31:25.939731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.11178","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":"2026-07-05T10:31:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vuXVMoOjMgEohAiOsjbMdJHJBd1G+McE76lUgfYP+XQ8m4yDajncElFS+h4FtvOeO23uYPKmvcia34sF+1+RAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:19:28.665348Z"},"content_sha256":"060b1a34ffc891d0e4f77a804d423e486f5930731fee51250194f9f1dfc572dd","schema_version":"1.0","event_id":"sha256:060b1a34ffc891d0e4f77a804d423e486f5930731fee51250194f9f1dfc572dd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:7YJIZIBV2I65KE54IBZIRJX6RD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A UV to X-ray view of soft excess in type 1 AGNs: I. sample selection and spectral profile","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Hao Sou, Jia-lai Kang, Jun-Xian Wang, Shi-Jiang Chen, Teng Liu, Wen-yong Kang, Zhen-Bo Su, Zhen-Yi Cai","submitted_at":"2024-12-15T13:04:48Z","abstract_excerpt":"A core sample of 59 unobscured type 1 AGNs with simultaneous XMM-Newton X-ray and UV observations is compiled from archive to probe the nature of soft X-ray excess (SE). In the first paper of this series, our focus centers on scrutinizing the spectral profile of the soft excess. Of the sources, $\\approx$ 71% (42/59) exhibit powerlaw-like (po-like) soft excess, while $\\approx$ 29% (17/59) exhibit blackbody-like (bb-like) soft excess. We show a cut-off powerlaw could uniformly characterize both types of soft excesses, with median Ecut of 1.40 keV for po-like and 0.14 keV for bb-like. For the fir"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.11178","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.11178/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:31:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hcQzLsCy93s6x34VVzO8VhS/uI6lGQ9AWRqg8WrQmmQ+PANaCw0kk0zYIZ7Kk2gtX4et3HcrnRZR3wH82Ly9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:19:28.666118Z"},"content_sha256":"4a5ea2ea2221c0652a1d7dec3d6d3acbd21983c32d8d6b7acde822843f894840","schema_version":"1.0","event_id":"sha256:4a5ea2ea2221c0652a1d7dec3d6d3acbd21983c32d8d6b7acde822843f894840"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7YJIZIBV2I65KE54IBZIRJX6RD/bundle.json","state_url":"https://pith.science/pith/7YJIZIBV2I65KE54IBZIRJX6RD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7YJIZIBV2I65KE54IBZIRJX6RD/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":"2026-08-07T05:19:28Z","links":{"resolver":"https://pith.science/pith/7YJIZIBV2I65KE54IBZIRJX6RD","bundle":"https://pith.science/pith/7YJIZIBV2I65KE54IBZIRJX6RD/bundle.json","state":"https://pith.science/pith/7YJIZIBV2I65KE54IBZIRJX6RD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7YJIZIBV2I65KE54IBZIRJX6RD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:7YJIZIBV2I65KE54IBZIRJX6RD","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":"31beddcd30ecacf16658402f12035dd9bc7e9dca6c33e43bba62541d4913ff3e","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-15T13:04:48Z","title_canon_sha256":"15c6a9a048127375f2e5cd246b466e397515592f53a61cfee47ccf2d184e0df8"},"schema_version":"1.0","source":{"id":"2412.11178","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.11178","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"arxiv_version","alias_value":"2412.11178v1","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.11178","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"pith_short_12","alias_value":"7YJIZIBV2I65","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"pith_short_16","alias_value":"7YJIZIBV2I65KE54","created_at":"2026-07-05T10:31:25Z"},{"alias_kind":"pith_short_8","alias_value":"7YJIZIBV","created_at":"2026-07-05T10:31:25Z"}],"graph_snapshots":[{"event_id":"sha256:4a5ea2ea2221c0652a1d7dec3d6d3acbd21983c32d8d6b7acde822843f894840","target":"graph","created_at":"2026-07-05T10:31:25Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2412.11178/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A core sample of 59 unobscured type 1 AGNs with simultaneous XMM-Newton X-ray and UV observations is compiled from archive to probe the nature of soft X-ray excess (SE). In the first paper of this series, our focus centers on scrutinizing the spectral profile of the soft excess. Of the sources, $\\approx$ 71% (42/59) exhibit powerlaw-like (po-like) soft excess, while $\\approx$ 29% (17/59) exhibit blackbody-like (bb-like) soft excess. We show a cut-off powerlaw could uniformly characterize both types of soft excesses, with median Ecut of 1.40 keV for po-like and 0.14 keV for bb-like. For the fir","authors_text":"Hao Sou, Jia-lai Kang, Jun-Xian Wang, Shi-Jiang Chen, Teng Liu, Wen-yong Kang, Zhen-Bo Su, Zhen-Yi Cai","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-15T13:04:48Z","title":"A UV to X-ray view of soft excess in type 1 AGNs: I. sample selection and spectral profile"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.11178","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":"sha256:060b1a34ffc891d0e4f77a804d423e486f5930731fee51250194f9f1dfc572dd","target":"record","created_at":"2026-07-05T10:31:25Z","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":"31beddcd30ecacf16658402f12035dd9bc7e9dca6c33e43bba62541d4913ff3e","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-12-15T13:04:48Z","title_canon_sha256":"15c6a9a048127375f2e5cd246b466e397515592f53a61cfee47ccf2d184e0df8"},"schema_version":"1.0","source":{"id":"2412.11178","kind":"arxiv","version":1}},"canonical_sha256":"fe128ca035d23dd513bc407288a6fe88d39755320a9c81c3b1f257088e896820","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe128ca035d23dd513bc407288a6fe88d39755320a9c81c3b1f257088e896820","first_computed_at":"2026-07-05T10:31:25.939731Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:31:25.939731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"naqkTPuUKEMEyJKucDSyMfUs0OkOgO5zXN/5WRqRQRpHCYVuM/rwii2A4UmonKiAjaECgEsHfJ2nLiHyOORVBg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:31:25.940483Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.11178","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:060b1a34ffc891d0e4f77a804d423e486f5930731fee51250194f9f1dfc572dd","sha256:4a5ea2ea2221c0652a1d7dec3d6d3acbd21983c32d8d6b7acde822843f894840"],"state_sha256":"7a8d1be033f50244e2b15ececee0d119b6940e68ed6144a13d8695773bdaf03d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SvSanB6BdjAUeyQKWXSdI7n3JZ159Ak/BPv4azlEGpgzvOiZLPM+FCrt1qymh0Q0ojGPbWzYxYKAB5rFb8/jCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T05:19:28.671547Z","bundle_sha256":"8965919383016b1ea942143f8bb79ec9a6e22b801bc3b81ec1ee2f0b3c0312cd"}}