{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:PRH2TZ6WSKZ7HISDDFV24HKHKY","short_pith_number":"pith:PRH2TZ6W","canonical_record":{"source":{"id":"1803.07637","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-03-20T20:19:08Z","cross_cats_sorted":[],"title_canon_sha256":"72f05c5e8c9e9f68ec0b544f2f97e6652a671e5d0c745ab0f1db7f4b32bcec20","abstract_canon_sha256":"f374900a47eddbbc4bb86c013600b98dca89eba4d690e0f09de83de3428149e1"},"schema_version":"1.0"},"canonical_sha256":"7c4fa9e7d692b3f3a243196bae1d4756301341fee78bb6314bff11fe790f57c2","source":{"kind":"arxiv","id":"1803.07637","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.07637","created_at":"2026-05-18T00:10:31Z"},{"alias_kind":"arxiv_version","alias_value":"1803.07637v2","created_at":"2026-05-18T00:10:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.07637","created_at":"2026-05-18T00:10:31Z"},{"alias_kind":"pith_short_12","alias_value":"PRH2TZ6WSKZ7","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PRH2TZ6WSKZ7HISD","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PRH2TZ6W","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:PRH2TZ6WSKZ7HISDDFV24HKHKY","target":"record","payload":{"canonical_record":{"source":{"id":"1803.07637","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-03-20T20:19:08Z","cross_cats_sorted":[],"title_canon_sha256":"72f05c5e8c9e9f68ec0b544f2f97e6652a671e5d0c745ab0f1db7f4b32bcec20","abstract_canon_sha256":"f374900a47eddbbc4bb86c013600b98dca89eba4d690e0f09de83de3428149e1"},"schema_version":"1.0"},"canonical_sha256":"7c4fa9e7d692b3f3a243196bae1d4756301341fee78bb6314bff11fe790f57c2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:31.592120Z","signature_b64":"P0tAt8+Zc0W/FwFsPYs6H2GnvFnkttFe/M+UiCYvW2fncfSOcyTYu146mRlzGyA9G/+9H57DEzKhj9eVQoZkDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c4fa9e7d692b3f3a243196bae1d4756301341fee78bb6314bff11fe790f57c2","last_reissued_at":"2026-05-18T00:10:31.591472Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:31.591472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.07637","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:10:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fZyURGjH3l5q5/mOZ+IJmODyVhe8e2k4+XYCvp0ijhSDfVIXYaKYbblKBRj6Rx6F2hT9DnDFDp8kmnNv/ZG5CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T12:24:10.020394Z"},"content_sha256":"9714abad1ef251f61fe5bbccaddf09fc0b82e836d154fa23b75e81d42efb86b9","schema_version":"1.0","event_id":"sha256:9714abad1ef251f61fe5bbccaddf09fc0b82e836d154fa23b75e81d42efb86b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:PRH2TZ6WSKZ7HISDDFV24HKHKY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Applegate mechanism in Post-Common-Envelope Binaries: Investigating the role of rotation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D.R.G. Schleicher, F.H. Navarrete, J. Zamponi, M. V\\\"olschow","submitted_at":"2018-03-20T20:19:08Z","abstract_excerpt":"Eclipsing time variations (ETVs) are observed in many close binary systems. In particular, for several post-common-envelope binaries (PCEBs) that consist of a white dwarf and a main sequence star, the O-C diagram suggests that real or apparent orbital period variations are driven by Jupiter-mass planets or as a result of magnetic activity, the so-called Applegate mechanism. The latter explains orbital period variations as a result of changes in the stellar quadrupole moment due to magnetic activity. We explore the feasibility of driving ETVs via the Applegate mechanism for a sample of PCEB sys"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.07637","kind":"arxiv","version":2},"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":"2026-05-18T00:10:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RGbIj7drZJ6m+o4onaPO4ARzQNjt8FDECrdNp+h1nU2PXrQSe336i/FQlCm/TJejphQDjrBimaVqFEmkv5XiBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T12:24:10.021526Z"},"content_sha256":"b8a144f87fd93efd59ec761817a1ac80fcd1bf7e51caaa4df53b0c278d4c0900","schema_version":"1.0","event_id":"sha256:b8a144f87fd93efd59ec761817a1ac80fcd1bf7e51caaa4df53b0c278d4c0900"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PRH2TZ6WSKZ7HISDDFV24HKHKY/bundle.json","state_url":"https://pith.science/pith/PRH2TZ6WSKZ7HISDDFV24HKHKY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PRH2TZ6WSKZ7HISDDFV24HKHKY/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":"2026-05-23T12:24:10Z","links":{"resolver":"https://pith.science/pith/PRH2TZ6WSKZ7HISDDFV24HKHKY","bundle":"https://pith.science/pith/PRH2TZ6WSKZ7HISDDFV24HKHKY/bundle.json","state":"https://pith.science/pith/PRH2TZ6WSKZ7HISDDFV24HKHKY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PRH2TZ6WSKZ7HISDDFV24HKHKY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PRH2TZ6WSKZ7HISDDFV24HKHKY","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":"f374900a47eddbbc4bb86c013600b98dca89eba4d690e0f09de83de3428149e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-03-20T20:19:08Z","title_canon_sha256":"72f05c5e8c9e9f68ec0b544f2f97e6652a671e5d0c745ab0f1db7f4b32bcec20"},"schema_version":"1.0","source":{"id":"1803.07637","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.07637","created_at":"2026-05-18T00:10:31Z"},{"alias_kind":"arxiv_version","alias_value":"1803.07637v2","created_at":"2026-05-18T00:10:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.07637","created_at":"2026-05-18T00:10:31Z"},{"alias_kind":"pith_short_12","alias_value":"PRH2TZ6WSKZ7","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PRH2TZ6WSKZ7HISD","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PRH2TZ6W","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:b8a144f87fd93efd59ec761817a1ac80fcd1bf7e51caaa4df53b0c278d4c0900","target":"graph","created_at":"2026-05-18T00:10:31Z","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":"Eclipsing time variations (ETVs) are observed in many close binary systems. In particular, for several post-common-envelope binaries (PCEBs) that consist of a white dwarf and a main sequence star, the O-C diagram suggests that real or apparent orbital period variations are driven by Jupiter-mass planets or as a result of magnetic activity, the so-called Applegate mechanism. The latter explains orbital period variations as a result of changes in the stellar quadrupole moment due to magnetic activity. We explore the feasibility of driving ETVs via the Applegate mechanism for a sample of PCEB sys","authors_text":"D.R.G. Schleicher, F.H. Navarrete, J. Zamponi, M. V\\\"olschow","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-03-20T20:19:08Z","title":"The Applegate mechanism in Post-Common-Envelope Binaries: Investigating the role of rotation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.07637","kind":"arxiv","version":2},"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":"sha256:9714abad1ef251f61fe5bbccaddf09fc0b82e836d154fa23b75e81d42efb86b9","target":"record","created_at":"2026-05-18T00:10:31Z","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":"f374900a47eddbbc4bb86c013600b98dca89eba4d690e0f09de83de3428149e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-03-20T20:19:08Z","title_canon_sha256":"72f05c5e8c9e9f68ec0b544f2f97e6652a671e5d0c745ab0f1db7f4b32bcec20"},"schema_version":"1.0","source":{"id":"1803.07637","kind":"arxiv","version":2}},"canonical_sha256":"7c4fa9e7d692b3f3a243196bae1d4756301341fee78bb6314bff11fe790f57c2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c4fa9e7d692b3f3a243196bae1d4756301341fee78bb6314bff11fe790f57c2","first_computed_at":"2026-05-18T00:10:31.591472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:31.591472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P0tAt8+Zc0W/FwFsPYs6H2GnvFnkttFe/M+UiCYvW2fncfSOcyTYu146mRlzGyA9G/+9H57DEzKhj9eVQoZkDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:31.592120Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.07637","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9714abad1ef251f61fe5bbccaddf09fc0b82e836d154fa23b75e81d42efb86b9","sha256:b8a144f87fd93efd59ec761817a1ac80fcd1bf7e51caaa4df53b0c278d4c0900"],"state_sha256":"ef28523318f5cce935ec37879ebc3b4ebcf04145684e234a1feb4524f5288326"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5DFJ1mX4Sqvj7B+/JYRlnJyxGCPcLZmE2a/hP2fV/3Q9NOtNRFPgYtTmGfHbeESTdRrFEpSXX+W+GVOJ6S5MAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T12:24:10.025242Z","bundle_sha256":"f7a8dada9e621398dc8974b7cbe7dde2ddf79484c0acd758bdd1204ef2c114d1"}}