{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:DLDWQ6OL5BMDOHB5QBU2KENAYI","short_pith_number":"pith:DLDWQ6OL","canonical_record":{"source":{"id":"2412.05400","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-06T19:54:27Z","cross_cats_sorted":["astro-ph.HE","cond-mat.other","physics.plasm-ph"],"title_canon_sha256":"815b27323cac23025792c8e6144c767d57e10e8cc4614355d7b1759ab14b0842","abstract_canon_sha256":"92153095874431c691e1e7a29300a227cee0dc64dd7e5cd2773668a71ebf0812"},"schema_version":"1.0"},"canonical_sha256":"1ac76879cbe858371c3d8069a511a0c232d23f3ea2a914aeabe4df6d4713cd38","source":{"kind":"arxiv","id":"2412.05400","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.05400","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"arxiv_version","alias_value":"2412.05400v2","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.05400","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"pith_short_12","alias_value":"DLDWQ6OL5BMD","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"pith_short_16","alias_value":"DLDWQ6OL5BMDOHB5","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"pith_short_8","alias_value":"DLDWQ6OL","created_at":"2026-07-05T10:57:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:DLDWQ6OL5BMDOHB5QBU2KENAYI","target":"record","payload":{"canonical_record":{"source":{"id":"2412.05400","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-06T19:54:27Z","cross_cats_sorted":["astro-ph.HE","cond-mat.other","physics.plasm-ph"],"title_canon_sha256":"815b27323cac23025792c8e6144c767d57e10e8cc4614355d7b1759ab14b0842","abstract_canon_sha256":"92153095874431c691e1e7a29300a227cee0dc64dd7e5cd2773668a71ebf0812"},"schema_version":"1.0"},"canonical_sha256":"1ac76879cbe858371c3d8069a511a0c232d23f3ea2a914aeabe4df6d4713cd38","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:57:21.130985Z","signature_b64":"c2Wjuh4nduqVdz4aLTZ0pedP7nhkzIBA/R8oKvqOivPJKSoHzpKPzl9egn15nUD9Jc4tr5I4DqLNzWLDK9aRCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ac76879cbe858371c3d8069a511a0c232d23f3ea2a914aeabe4df6d4713cd38","last_reissued_at":"2026-07-05T10:57:21.130469Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:57:21.130469Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.05400","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":"2026-07-05T10:57:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kydx5stp5ltPjGRsXDOvQNS6kTXEMJtTBpWv93BKZ3CL5B1yrRRs+LfvExiS79vWmKrN/D3ON9md3xGz9dAACA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:47:43.485807Z"},"content_sha256":"c970f0490e9677836023d2e5b08e4ad14b12b5705cea8398e9bcccd06fce2ae2","schema_version":"1.0","event_id":"sha256:c970f0490e9677836023d2e5b08e4ad14b12b5705cea8398e9bcccd06fce2ae2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:DLDWQ6OL5BMDOHB5QBU2KENAYI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the origin of magnetic white dwarfs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","cond-mat.other","physics.plasm-ph"],"primary_cat":"astro-ph.SR","authors_text":"Ananya Mohapatra, Eric G. Blackman","submitted_at":"2024-12-06T19:54:27Z","abstract_excerpt":"The origin of magnetic white dwarfs (MWDs) has been a long-standing puzzle. Proposed origin mechanisms have included: fossil fields frozen in from the progenitor convective core; a dynamo in the progenitor envelope; crystallization dynamos in sufficiently cool white dwarfs; and accretion disk dynamos from white dwarf-white dwarf mergers or tidally shredded low-mass stellar or planetary companions. Here we show how observational constraints on white dwarf magnetic field strengths, ages, and masses can be used to narrow down the viability of proposed origin mechanisms. Using data from both the M"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.05400","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.05400/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":"2026-07-05T10:57:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"duOxXZwOZXsP4HcMVR6eOONqoKuzSdWIYIFhdBmEO2zJlAK1bMoCQE2Pb9+0X0/e0XE7xoPzLzqqLLZWGBeQBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:47:43.486176Z"},"content_sha256":"dd6d08147080f2b90f82dbdb03f4d72343f15e18bec78491b6e85f07e4637f2c","schema_version":"1.0","event_id":"sha256:dd6d08147080f2b90f82dbdb03f4d72343f15e18bec78491b6e85f07e4637f2c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DLDWQ6OL5BMDOHB5QBU2KENAYI/bundle.json","state_url":"https://pith.science/pith/DLDWQ6OL5BMDOHB5QBU2KENAYI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DLDWQ6OL5BMDOHB5QBU2KENAYI/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":"2026-07-07T13:47:43Z","links":{"resolver":"https://pith.science/pith/DLDWQ6OL5BMDOHB5QBU2KENAYI","bundle":"https://pith.science/pith/DLDWQ6OL5BMDOHB5QBU2KENAYI/bundle.json","state":"https://pith.science/pith/DLDWQ6OL5BMDOHB5QBU2KENAYI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DLDWQ6OL5BMDOHB5QBU2KENAYI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:DLDWQ6OL5BMDOHB5QBU2KENAYI","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":"92153095874431c691e1e7a29300a227cee0dc64dd7e5cd2773668a71ebf0812","cross_cats_sorted":["astro-ph.HE","cond-mat.other","physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-06T19:54:27Z","title_canon_sha256":"815b27323cac23025792c8e6144c767d57e10e8cc4614355d7b1759ab14b0842"},"schema_version":"1.0","source":{"id":"2412.05400","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.05400","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"arxiv_version","alias_value":"2412.05400v2","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.05400","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"pith_short_12","alias_value":"DLDWQ6OL5BMD","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"pith_short_16","alias_value":"DLDWQ6OL5BMDOHB5","created_at":"2026-07-05T10:57:21Z"},{"alias_kind":"pith_short_8","alias_value":"DLDWQ6OL","created_at":"2026-07-05T10:57:21Z"}],"graph_snapshots":[{"event_id":"sha256:dd6d08147080f2b90f82dbdb03f4d72343f15e18bec78491b6e85f07e4637f2c","target":"graph","created_at":"2026-07-05T10:57:21Z","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/2412.05400/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The origin of magnetic white dwarfs (MWDs) has been a long-standing puzzle. Proposed origin mechanisms have included: fossil fields frozen in from the progenitor convective core; a dynamo in the progenitor envelope; crystallization dynamos in sufficiently cool white dwarfs; and accretion disk dynamos from white dwarf-white dwarf mergers or tidally shredded low-mass stellar or planetary companions. Here we show how observational constraints on white dwarf magnetic field strengths, ages, and masses can be used to narrow down the viability of proposed origin mechanisms. Using data from both the M","authors_text":"Ananya Mohapatra, Eric G. Blackman","cross_cats":["astro-ph.HE","cond-mat.other","physics.plasm-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-06T19:54:27Z","title":"Constraining the origin of magnetic white dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.05400","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:c970f0490e9677836023d2e5b08e4ad14b12b5705cea8398e9bcccd06fce2ae2","target":"record","created_at":"2026-07-05T10:57:21Z","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":"92153095874431c691e1e7a29300a227cee0dc64dd7e5cd2773668a71ebf0812","cross_cats_sorted":["astro-ph.HE","cond-mat.other","physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-12-06T19:54:27Z","title_canon_sha256":"815b27323cac23025792c8e6144c767d57e10e8cc4614355d7b1759ab14b0842"},"schema_version":"1.0","source":{"id":"2412.05400","kind":"arxiv","version":2}},"canonical_sha256":"1ac76879cbe858371c3d8069a511a0c232d23f3ea2a914aeabe4df6d4713cd38","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ac76879cbe858371c3d8069a511a0c232d23f3ea2a914aeabe4df6d4713cd38","first_computed_at":"2026-07-05T10:57:21.130469Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:57:21.130469Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c2Wjuh4nduqVdz4aLTZ0pedP7nhkzIBA/R8oKvqOivPJKSoHzpKPzl9egn15nUD9Jc4tr5I4DqLNzWLDK9aRCg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:57:21.130985Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.05400","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c970f0490e9677836023d2e5b08e4ad14b12b5705cea8398e9bcccd06fce2ae2","sha256:dd6d08147080f2b90f82dbdb03f4d72343f15e18bec78491b6e85f07e4637f2c"],"state_sha256":"6b75743bbbce02aa1354072610ca33031c3d8372ea6cd2a0922389b1c24d534f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jWyNe1AV6ATxiuKHnKlVZKw9JTV+JgmEt5wNfgQSy9Fev0yejqeK///38g41z7dFIBdzHK7+vRANJxfsok/MBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T13:47:43.488142Z","bundle_sha256":"d0dfcde360c258bb19ec9f9f183d07a9b597ad3a2414ea4d82ddb98af424638d"}}