{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:U7JDTJR3W3FYX6OWKFSWCRPFJN","short_pith_number":"pith:U7JDTJR3","canonical_record":{"source":{"id":"1201.0998","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-04T21:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"e920bcc869827e3e383649285c2bc55ef59af6682e367b3166bce68a0d95d98b","abstract_canon_sha256":"b8abd163e0e25d023bc33a4958bb17f20c00b9d5f162a0ea5e661b4eb3fb4e5d"},"schema_version":"1.0"},"canonical_sha256":"a7d239a63bb6cb8bf9d651656145e54b6247a858e4583cda08ff77853b3f9b09","source":{"kind":"arxiv","id":"1201.0998","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.0998","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"arxiv_version","alias_value":"1201.0998v1","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0998","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"pith_short_12","alias_value":"U7JDTJR3W3FY","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"U7JDTJR3W3FYX6OW","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"U7JDTJR3","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:U7JDTJR3W3FYX6OWKFSWCRPFJN","target":"record","payload":{"canonical_record":{"source":{"id":"1201.0998","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-04T21:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"e920bcc869827e3e383649285c2bc55ef59af6682e367b3166bce68a0d95d98b","abstract_canon_sha256":"b8abd163e0e25d023bc33a4958bb17f20c00b9d5f162a0ea5e661b4eb3fb4e5d"},"schema_version":"1.0"},"canonical_sha256":"a7d239a63bb6cb8bf9d651656145e54b6247a858e4583cda08ff77853b3f9b09","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:57.611042Z","signature_b64":"n37XGbn5GCGjp/zem+G9SOHngyQUqCkpZh1MrbPpAOM4Px41LH1/B8JmraeYYRPScDslvHbOyeUiY5w7Z2iAAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7d239a63bb6cb8bf9d651656145e54b6247a858e4583cda08ff77853b3f9b09","last_reissued_at":"2026-05-18T01:58:57.610467Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:57.610467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.0998","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":"2026-05-18T01:58:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sCyn0dtbSCdtW4+eSrlzvzXwCmgdHta5pRRlUhf1XeKLbWht2fBbTZp24/1E5la2FMUFUb1sw9G3hPNs0+RjAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:09:29.881587Z"},"content_sha256":"33f4331f492af5cfc55d51a297ac6175f1c0ac6190438ae4fc8f5d35e5cf572c","schema_version":"1.0","event_id":"sha256:33f4331f492af5cfc55d51a297ac6175f1c0ac6190438ae4fc8f5d35e5cf572c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:U7JDTJR3W3FYX6OWKFSWCRPFJN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Role of White Dwarfs in Cataclysmic Variable Spin-down","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J. J. Drake, O. Cohen, V. L. Kashyap","submitted_at":"2012-01-04T21:00:02Z","abstract_excerpt":"We study the effect of a white dwarf on the spin-down of a cataclysmic variable system using a three-dimensional magnetohydrodynamic numerical model. The model includes the stellar corona, the stellar wind, and the WD mass and magnetic field. The existence of the WD modifies the system spin-down by physically blocking the stellar wind, restructuring the wind, channeling the wind towards the WD surface, and by modifying the shape and size of the Alfv\\'en surface. The combination of these processes differs among a set of simple test cases, and the resulting angular momentum loss rates vary by fa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0998","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":"2026-05-18T01:58:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"arZmPvK5AM9akYh5uHHSrf4CnRMEVhqzCf3itKnD/+AnQhDh2r2lC5i58P5sG7bHWL5y/kad9sOfU4p7u6AsAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T15:09:29.881951Z"},"content_sha256":"ed1f356178fc0d28dba29ef7ccd4e35e11039028111109b9e9d6d99ad3b70f8c","schema_version":"1.0","event_id":"sha256:ed1f356178fc0d28dba29ef7ccd4e35e11039028111109b9e9d6d99ad3b70f8c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U7JDTJR3W3FYX6OWKFSWCRPFJN/bundle.json","state_url":"https://pith.science/pith/U7JDTJR3W3FYX6OWKFSWCRPFJN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U7JDTJR3W3FYX6OWKFSWCRPFJN/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":"2026-06-02T15:09:29Z","links":{"resolver":"https://pith.science/pith/U7JDTJR3W3FYX6OWKFSWCRPFJN","bundle":"https://pith.science/pith/U7JDTJR3W3FYX6OWKFSWCRPFJN/bundle.json","state":"https://pith.science/pith/U7JDTJR3W3FYX6OWKFSWCRPFJN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U7JDTJR3W3FYX6OWKFSWCRPFJN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:U7JDTJR3W3FYX6OWKFSWCRPFJN","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":"b8abd163e0e25d023bc33a4958bb17f20c00b9d5f162a0ea5e661b4eb3fb4e5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-04T21:00:02Z","title_canon_sha256":"e920bcc869827e3e383649285c2bc55ef59af6682e367b3166bce68a0d95d98b"},"schema_version":"1.0","source":{"id":"1201.0998","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.0998","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"arxiv_version","alias_value":"1201.0998v1","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0998","created_at":"2026-05-18T01:58:57Z"},{"alias_kind":"pith_short_12","alias_value":"U7JDTJR3W3FY","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"U7JDTJR3W3FYX6OW","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"U7JDTJR3","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:ed1f356178fc0d28dba29ef7ccd4e35e11039028111109b9e9d6d99ad3b70f8c","target":"graph","created_at":"2026-05-18T01:58:57Z","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 study the effect of a white dwarf on the spin-down of a cataclysmic variable system using a three-dimensional magnetohydrodynamic numerical model. The model includes the stellar corona, the stellar wind, and the WD mass and magnetic field. The existence of the WD modifies the system spin-down by physically blocking the stellar wind, restructuring the wind, channeling the wind towards the WD surface, and by modifying the shape and size of the Alfv\\'en surface. The combination of these processes differs among a set of simple test cases, and the resulting angular momentum loss rates vary by fa","authors_text":"J. J. Drake, O. Cohen, V. L. Kashyap","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-04T21:00:02Z","title":"The Role of White Dwarfs in Cataclysmic Variable Spin-down"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0998","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":"sha256:33f4331f492af5cfc55d51a297ac6175f1c0ac6190438ae4fc8f5d35e5cf572c","target":"record","created_at":"2026-05-18T01:58:57Z","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":"b8abd163e0e25d023bc33a4958bb17f20c00b9d5f162a0ea5e661b4eb3fb4e5d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-01-04T21:00:02Z","title_canon_sha256":"e920bcc869827e3e383649285c2bc55ef59af6682e367b3166bce68a0d95d98b"},"schema_version":"1.0","source":{"id":"1201.0998","kind":"arxiv","version":1}},"canonical_sha256":"a7d239a63bb6cb8bf9d651656145e54b6247a858e4583cda08ff77853b3f9b09","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7d239a63bb6cb8bf9d651656145e54b6247a858e4583cda08ff77853b3f9b09","first_computed_at":"2026-05-18T01:58:57.610467Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:57.610467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n37XGbn5GCGjp/zem+G9SOHngyQUqCkpZh1MrbPpAOM4Px41LH1/B8JmraeYYRPScDslvHbOyeUiY5w7Z2iAAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:57.611042Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.0998","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33f4331f492af5cfc55d51a297ac6175f1c0ac6190438ae4fc8f5d35e5cf572c","sha256:ed1f356178fc0d28dba29ef7ccd4e35e11039028111109b9e9d6d99ad3b70f8c"],"state_sha256":"23a3c7abcc220157dacc0305a8b3eaaa496d54826d2bb00c5d9312c6f3a13fc8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K0Jjze1xldvpKnsYjSgLpqw7x6z0ww0QLgONOJx2LvuwW6h+XUMadi5eukUzWoNbT3HyZ2QO29klbSO7yuZEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T15:09:29.884054Z","bundle_sha256":"168d8b514fbf00a358869330acb991821b6faaf83afad88af5599ab3fbd92410"}}