{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:XTJQPAZDLPYNO7JHJCLO722A72","short_pith_number":"pith:XTJQPAZD","canonical_record":{"source":{"id":"astro-ph/9701094","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-01-15T12:34:47Z","cross_cats_sorted":[],"title_canon_sha256":"d8c610fbf8f73610c91417d82cbd0299df672533d86728f3c5a7f76789e4b345","abstract_canon_sha256":"789a4cd8666c915bd2fc6890aee2f7e5f5d83ac941cf063a3429458e67c06546"},"schema_version":"1.0"},"canonical_sha256":"bcd30783235bf0d77d274896efeb40fe8affca751aea8d406fd0f165cb006bdc","source":{"kind":"arxiv","id":"astro-ph/9701094","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9701094","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9701094v1","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9701094","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"pith_short_12","alias_value":"XTJQPAZDLPYN","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTJQPAZDLPYNO7JH","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTJQPAZD","created_at":"2026-07-04T14:15:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:XTJQPAZDLPYNO7JHJCLO722A72","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9701094","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-01-15T12:34:47Z","cross_cats_sorted":[],"title_canon_sha256":"d8c610fbf8f73610c91417d82cbd0299df672533d86728f3c5a7f76789e4b345","abstract_canon_sha256":"789a4cd8666c915bd2fc6890aee2f7e5f5d83ac941cf063a3429458e67c06546"},"schema_version":"1.0"},"canonical_sha256":"bcd30783235bf0d77d274896efeb40fe8affca751aea8d406fd0f165cb006bdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:15:01.885812Z","signature_b64":"q1Ms1P2zvwZrKxSlnVE68D5c3rpJNBDYNPyH2SEkDMYVmbO+fWNLM1c8F1tH2jQfPdybGmMNXsE37CRl0MlqDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcd30783235bf0d77d274896efeb40fe8affca751aea8d406fd0f165cb006bdc","last_reissued_at":"2026-07-04T14:15:01.885430Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:15:01.885430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9701094","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":"2026-07-04T14:15:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MnhXIziaQv6Udae+T4bRdwSAIKIx08yGebqo6APKHUxoLP2xHIQZqyyP8YRz73776Gl+PD6/92sEMealJeIrAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:48:53.220930Z"},"content_sha256":"43eb049a340a81b7649f1b37bbac9663746de742fc761e6b0d682080d04fa3d4","schema_version":"1.0","event_id":"sha256:43eb049a340a81b7649f1b37bbac9663746de742fc761e6b0d682080d04fa3d4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:XTJQPAZDLPYNO7JHJCLO722A72","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase-resolved high-resolution spectrophotometry of the eclipsing polar HU Aquarii","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Axel D. Schwope (AIP Potsdam), Karl-Heinz Mantel (Univ. Muenchen), Keith Horne (Univ. St. Andrews)","submitted_at":"1997-01-15T12:34:47Z","abstract_excerpt":"We present phase-resolved spectroscopy of the bright, eclipsing polar HU Aqr obtained with high time (~30sec) and spectral (1.6 A) resolution when the system was in a high accretion state. The trailed spectrograms reveal clearly the presence of three different line components with different width and radial velocity variation. By means of Doppler tomography their origin could be located unequivocally (a) on the secondary star, (b) the ballistic part of the accretion stream (horizontal stream), and (c) the magnetically funnelled part of the stream (vertical stream). For the first time we were a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9701094","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/astro-ph/9701094/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":"2026-07-04T14:15:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1edX5jigJhcpUN2pOZ3WHVHvMN4cFi9UiwGUdjWE4Oog+yeRP/HtpCV8g72UF4FyxMCto7V3xxZkTFx15w2HCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:48:53.221830Z"},"content_sha256":"45676f0b79f7c9bee518289f68c5835633d44468f8141d778321756675da6eee","schema_version":"1.0","event_id":"sha256:45676f0b79f7c9bee518289f68c5835633d44468f8141d778321756675da6eee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XTJQPAZDLPYNO7JHJCLO722A72/bundle.json","state_url":"https://pith.science/pith/XTJQPAZDLPYNO7JHJCLO722A72/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XTJQPAZDLPYNO7JHJCLO722A72/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":"2026-08-13T09:48:53Z","links":{"resolver":"https://pith.science/pith/XTJQPAZDLPYNO7JHJCLO722A72","bundle":"https://pith.science/pith/XTJQPAZDLPYNO7JHJCLO722A72/bundle.json","state":"https://pith.science/pith/XTJQPAZDLPYNO7JHJCLO722A72/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XTJQPAZDLPYNO7JHJCLO722A72/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:XTJQPAZDLPYNO7JHJCLO722A72","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":"789a4cd8666c915bd2fc6890aee2f7e5f5d83ac941cf063a3429458e67c06546","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-01-15T12:34:47Z","title_canon_sha256":"d8c610fbf8f73610c91417d82cbd0299df672533d86728f3c5a7f76789e4b345"},"schema_version":"1.0","source":{"id":"astro-ph/9701094","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9701094","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9701094v1","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9701094","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"pith_short_12","alias_value":"XTJQPAZDLPYN","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"pith_short_16","alias_value":"XTJQPAZDLPYNO7JH","created_at":"2026-07-04T14:15:01Z"},{"alias_kind":"pith_short_8","alias_value":"XTJQPAZD","created_at":"2026-07-04T14:15:01Z"}],"graph_snapshots":[{"event_id":"sha256:45676f0b79f7c9bee518289f68c5835633d44468f8141d778321756675da6eee","target":"graph","created_at":"2026-07-04T14:15:01Z","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/astro-ph/9701094/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present phase-resolved spectroscopy of the bright, eclipsing polar HU Aqr obtained with high time (~30sec) and spectral (1.6 A) resolution when the system was in a high accretion state. The trailed spectrograms reveal clearly the presence of three different line components with different width and radial velocity variation. By means of Doppler tomography their origin could be located unequivocally (a) on the secondary star, (b) the ballistic part of the accretion stream (horizontal stream), and (c) the magnetically funnelled part of the stream (vertical stream). For the first time we were a","authors_text":"Axel D. Schwope (AIP Potsdam), Karl-Heinz Mantel (Univ. Muenchen), Keith Horne (Univ. St. Andrews)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-01-15T12:34:47Z","title":"Phase-resolved high-resolution spectrophotometry of the eclipsing polar HU Aquarii"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9701094","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":"sha256:43eb049a340a81b7649f1b37bbac9663746de742fc761e6b0d682080d04fa3d4","target":"record","created_at":"2026-07-04T14:15:01Z","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":"789a4cd8666c915bd2fc6890aee2f7e5f5d83ac941cf063a3429458e67c06546","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-01-15T12:34:47Z","title_canon_sha256":"d8c610fbf8f73610c91417d82cbd0299df672533d86728f3c5a7f76789e4b345"},"schema_version":"1.0","source":{"id":"astro-ph/9701094","kind":"arxiv","version":1}},"canonical_sha256":"bcd30783235bf0d77d274896efeb40fe8affca751aea8d406fd0f165cb006bdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bcd30783235bf0d77d274896efeb40fe8affca751aea8d406fd0f165cb006bdc","first_computed_at":"2026-07-04T14:15:01.885430Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:15:01.885430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q1Ms1P2zvwZrKxSlnVE68D5c3rpJNBDYNPyH2SEkDMYVmbO+fWNLM1c8F1tH2jQfPdybGmMNXsE37CRl0MlqDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:15:01.885812Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9701094","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43eb049a340a81b7649f1b37bbac9663746de742fc761e6b0d682080d04fa3d4","sha256:45676f0b79f7c9bee518289f68c5835633d44468f8141d778321756675da6eee"],"state_sha256":"c49ca94b958da3c296045d06085c21735dc65cb04b4b32d631e493c3b3ae744d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q9IWP3mmToeUfDeuyZWq+CXZb0iMaNJamDd0WuA8BmtLGcAt7N1LskHDx5fdjG5pKb5cv+tRzSaymn+MQcieDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T09:48:53.227490Z","bundle_sha256":"f3acfc80bcb4e2f4857a0f287e43f110fe4b70cf93c93b58b810705eec72f635"}}