{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:VMAHU53FLPN66CLWLTJM2KPJRB","short_pith_number":"pith:VMAHU53F","canonical_record":{"source":{"id":"1607.05996","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-20T15:20:38Z","cross_cats_sorted":[],"title_canon_sha256":"50bdede59eb8ed6f94e2bc6a89201b1b4d137e1b433e3823772123aa27402b7a","abstract_canon_sha256":"2a259641d4dc1dc127ad2c7057336d288d08d1edc6b59e513691de5a75b8c2cf"},"schema_version":"1.0"},"canonical_sha256":"ab007a77655bdbef09765cd2cd29e98852b1b977af9e23eae608590004d11d4c","source":{"kind":"arxiv","id":"1607.05996","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.05996","created_at":"2026-05-18T01:10:43Z"},{"alias_kind":"arxiv_version","alias_value":"1607.05996v1","created_at":"2026-05-18T01:10:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.05996","created_at":"2026-05-18T01:10:43Z"},{"alias_kind":"pith_short_12","alias_value":"VMAHU53FLPN6","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VMAHU53FLPN66CLW","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VMAHU53F","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:VMAHU53FLPN66CLWLTJM2KPJRB","target":"record","payload":{"canonical_record":{"source":{"id":"1607.05996","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-20T15:20:38Z","cross_cats_sorted":[],"title_canon_sha256":"50bdede59eb8ed6f94e2bc6a89201b1b4d137e1b433e3823772123aa27402b7a","abstract_canon_sha256":"2a259641d4dc1dc127ad2c7057336d288d08d1edc6b59e513691de5a75b8c2cf"},"schema_version":"1.0"},"canonical_sha256":"ab007a77655bdbef09765cd2cd29e98852b1b977af9e23eae608590004d11d4c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:43.480761Z","signature_b64":"XRTUZ+Lipe9AJHmSYuaRNOgm8ksayN8XBXXM5XWdbuybKlcBnovpzixh5pFD69S2BOWZ88YU3xrllfwaORIhCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab007a77655bdbef09765cd2cd29e98852b1b977af9e23eae608590004d11d4c","last_reissued_at":"2026-05-18T01:10:43.480086Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:43.480086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.05996","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":"2026-05-18T01:10:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tdNEfb3QESKgvqYiPYuA+oga6WUSBZCegbAOkilCB4KZoPb8RBKa87nm+ileJs/aS+OWTsHoYB0aiFX84WbfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:24:30.716749Z"},"content_sha256":"a3df1d946776fb1478804c0c6b8dc86d6f785e47299ad43948fa910d926f36fb","schema_version":"1.0","event_id":"sha256:a3df1d946776fb1478804c0c6b8dc86d6f785e47299ad43948fa910d926f36fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:VMAHU53FLPN66CLWLTJM2KPJRB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Field Amplification During the Common Envelope Phase","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Ewald Mueller, Friedrich K. Roepke, Ruediger Pakmor, Sebastian T. Ohlmann, Volker Springel","submitted_at":"2016-07-20T15:20:38Z","abstract_excerpt":"During the common envelope (CE) phase, a giant star in a binary system overflows its Roche lobe and unstable mass transfer leads to a spiral-in of the companion, resulting in a close binary system or in a merger of the stellar cores. Dynamo processes during the CE phase have been proposed as a mechanism to generate magnetic fields that are important for forming magnetic white dwarfs (MWDs) and for shaping planetary nebulae. Here, we present the first magnetohydrodynamics simulations of the dynamical spiral-in during a CE phase. We find that magnetic fields are strongly amplified in the accreti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.05996","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":"2026-05-18T01:10:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FjaWZyb16cwciyuzDzfLiEP9WFq2lsm/vG+D4ONl5Up2Xc4Vm3iR+L4AfxgposJ8SW6q77W0mspR+BjTUGE4CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T10:24:30.717094Z"},"content_sha256":"085fecf2febee20f56a5fcda8ed4d00475545b35be54ffe8a31e3faa041e0751","schema_version":"1.0","event_id":"sha256:085fecf2febee20f56a5fcda8ed4d00475545b35be54ffe8a31e3faa041e0751"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VMAHU53FLPN66CLWLTJM2KPJRB/bundle.json","state_url":"https://pith.science/pith/VMAHU53FLPN66CLWLTJM2KPJRB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VMAHU53FLPN66CLWLTJM2KPJRB/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":"2026-06-02T10:24:30Z","links":{"resolver":"https://pith.science/pith/VMAHU53FLPN66CLWLTJM2KPJRB","bundle":"https://pith.science/pith/VMAHU53FLPN66CLWLTJM2KPJRB/bundle.json","state":"https://pith.science/pith/VMAHU53FLPN66CLWLTJM2KPJRB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VMAHU53FLPN66CLWLTJM2KPJRB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VMAHU53FLPN66CLWLTJM2KPJRB","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":"2a259641d4dc1dc127ad2c7057336d288d08d1edc6b59e513691de5a75b8c2cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-20T15:20:38Z","title_canon_sha256":"50bdede59eb8ed6f94e2bc6a89201b1b4d137e1b433e3823772123aa27402b7a"},"schema_version":"1.0","source":{"id":"1607.05996","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.05996","created_at":"2026-05-18T01:10:43Z"},{"alias_kind":"arxiv_version","alias_value":"1607.05996v1","created_at":"2026-05-18T01:10:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.05996","created_at":"2026-05-18T01:10:43Z"},{"alias_kind":"pith_short_12","alias_value":"VMAHU53FLPN6","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VMAHU53FLPN66CLW","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VMAHU53F","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:085fecf2febee20f56a5fcda8ed4d00475545b35be54ffe8a31e3faa041e0751","target":"graph","created_at":"2026-05-18T01:10:43Z","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":"During the common envelope (CE) phase, a giant star in a binary system overflows its Roche lobe and unstable mass transfer leads to a spiral-in of the companion, resulting in a close binary system or in a merger of the stellar cores. Dynamo processes during the CE phase have been proposed as a mechanism to generate magnetic fields that are important for forming magnetic white dwarfs (MWDs) and for shaping planetary nebulae. Here, we present the first magnetohydrodynamics simulations of the dynamical spiral-in during a CE phase. We find that magnetic fields are strongly amplified in the accreti","authors_text":"Ewald Mueller, Friedrich K. Roepke, Ruediger Pakmor, Sebastian T. Ohlmann, Volker Springel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-20T15:20:38Z","title":"Magnetic Field Amplification During the Common Envelope Phase"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.05996","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:a3df1d946776fb1478804c0c6b8dc86d6f785e47299ad43948fa910d926f36fb","target":"record","created_at":"2026-05-18T01:10:43Z","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":"2a259641d4dc1dc127ad2c7057336d288d08d1edc6b59e513691de5a75b8c2cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-07-20T15:20:38Z","title_canon_sha256":"50bdede59eb8ed6f94e2bc6a89201b1b4d137e1b433e3823772123aa27402b7a"},"schema_version":"1.0","source":{"id":"1607.05996","kind":"arxiv","version":1}},"canonical_sha256":"ab007a77655bdbef09765cd2cd29e98852b1b977af9e23eae608590004d11d4c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab007a77655bdbef09765cd2cd29e98852b1b977af9e23eae608590004d11d4c","first_computed_at":"2026-05-18T01:10:43.480086Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:43.480086Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XRTUZ+Lipe9AJHmSYuaRNOgm8ksayN8XBXXM5XWdbuybKlcBnovpzixh5pFD69S2BOWZ88YU3xrllfwaORIhCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:43.480761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.05996","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3df1d946776fb1478804c0c6b8dc86d6f785e47299ad43948fa910d926f36fb","sha256:085fecf2febee20f56a5fcda8ed4d00475545b35be54ffe8a31e3faa041e0751"],"state_sha256":"58df407484d7d503240f8e9773f31a7f2572b013302e8c137ee8e818a0ad1377"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Am5jOSgyI2g4FigwmjlBJCoBo/CYu/LfmlAOsS5RRNfFk+j76VgxStW1yTWyMDyV7GypdXb0U2zrCU/FxmIBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T10:24:30.718996Z","bundle_sha256":"8e3b0652b3e68cfaa6cdff1647e20a7fc0c1e9e722402e2bed103d9a19d340e9"}}