{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:NOIOGOO6NUPUT4CS4RTISJVSB4","short_pith_number":"pith:NOIOGOO6","canonical_record":{"source":{"id":"2002.10478","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-02-24T19:03:21Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"42587145cc4f7e4d1308aa2f12048bcf0be340cb4c5fe51ff4774eeb7a5f3eb2","abstract_canon_sha256":"d3f5caf26e4552d8bec290d0654fcdaf43aaa3800e21ece85812c2ccc051b025"},"schema_version":"1.0"},"canonical_sha256":"6b90e339de6d1f49f052e4668926b20f3867704a5bd0e1d0238b462cc596b3cd","source":{"kind":"arxiv","id":"2002.10478","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.10478","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"arxiv_version","alias_value":"2002.10478v2","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.10478","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_12","alias_value":"NOIOGOO6NUPU","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_16","alias_value":"NOIOGOO6NUPUT4CS","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_8","alias_value":"NOIOGOO6","created_at":"2026-07-05T01:18:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:NOIOGOO6NUPUT4CS4RTISJVSB4","target":"record","payload":{"canonical_record":{"source":{"id":"2002.10478","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-02-24T19:03:21Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"42587145cc4f7e4d1308aa2f12048bcf0be340cb4c5fe51ff4774eeb7a5f3eb2","abstract_canon_sha256":"d3f5caf26e4552d8bec290d0654fcdaf43aaa3800e21ece85812c2ccc051b025"},"schema_version":"1.0"},"canonical_sha256":"6b90e339de6d1f49f052e4668926b20f3867704a5bd0e1d0238b462cc596b3cd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:18:52.815076Z","signature_b64":"8RfcZmdWGHnNEgDZJ0gy8LYEJgU+pOslHv+24PzV+kPuMyhr7QTZ0XFFIWZbXicNDCmpWzdoH+jlpR/aL+jCCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b90e339de6d1f49f052e4668926b20f3867704a5bd0e1d0238b462cc596b3cd","last_reissued_at":"2026-07-05T01:18:52.814599Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:18:52.814599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.10478","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":"2026-07-05T01:18:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NgCKQ0BCakHi2nCSQHfkFU0ru4jpK/46sLWEKAxZK6f/GrqH132PqwXz9I+6InvHp45KK0HY0Br97uVbO67/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T19:44:45.713438Z"},"content_sha256":"afb280b2e03f33e1899e8228655d9b473a8dacdc9b98630453b87ffec30747fb","schema_version":"1.0","event_id":"sha256:afb280b2e03f33e1899e8228655d9b473a8dacdc9b98630453b87ffec30747fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:NOIOGOO6NUPUT4CS4RTISJVSB4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Neutron Star-White Dwarf Binary Model for Periodically Active Fast Radio Burst Sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Tong Liu, Tuan Yi, Wei-Min Gu","submitted_at":"2020-02-24T19:03:21Z","abstract_excerpt":"We propose a compact binary model with an eccentric orbit to explain periodically active fast radio burst (FRB) sources, where the system consists of a neutron star (NS) with strong dipolar magnetic fields and a magnetic white dwarf (WD). In our model, the WD fills its Roche lobe at periastron, and mass transfer occurs from the WD to the NS around this point. The accreted material may be fragmented into a number of parts, which arrive at the NS at different times. The fragmented magnetized material may trigger magnetic reconnection near the NS surface. The electrons can be accelerated to an ul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.10478","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/2002.10478/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":"2026-07-05T01:18:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vBRptiVKhUfvTf1fyGH7VWkrLf4/krkBrjYKpd1OulZymaWFjM0gp8Rbm0luF66AnLYkKQtc5Geq6qSVaK0dCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T19:44:45.714360Z"},"content_sha256":"96ec3c57ffd7270b44dae4710f1af0731087e66fdd50d70e85ada9c8e50f4cd5","schema_version":"1.0","event_id":"sha256:96ec3c57ffd7270b44dae4710f1af0731087e66fdd50d70e85ada9c8e50f4cd5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NOIOGOO6NUPUT4CS4RTISJVSB4/bundle.json","state_url":"https://pith.science/pith/NOIOGOO6NUPUT4CS4RTISJVSB4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NOIOGOO6NUPUT4CS4RTISJVSB4/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":"2026-08-11T19:44:45Z","links":{"resolver":"https://pith.science/pith/NOIOGOO6NUPUT4CS4RTISJVSB4","bundle":"https://pith.science/pith/NOIOGOO6NUPUT4CS4RTISJVSB4/bundle.json","state":"https://pith.science/pith/NOIOGOO6NUPUT4CS4RTISJVSB4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NOIOGOO6NUPUT4CS4RTISJVSB4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NOIOGOO6NUPUT4CS4RTISJVSB4","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":"d3f5caf26e4552d8bec290d0654fcdaf43aaa3800e21ece85812c2ccc051b025","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-02-24T19:03:21Z","title_canon_sha256":"42587145cc4f7e4d1308aa2f12048bcf0be340cb4c5fe51ff4774eeb7a5f3eb2"},"schema_version":"1.0","source":{"id":"2002.10478","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.10478","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"arxiv_version","alias_value":"2002.10478v2","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.10478","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_12","alias_value":"NOIOGOO6NUPU","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_16","alias_value":"NOIOGOO6NUPUT4CS","created_at":"2026-07-05T01:18:52Z"},{"alias_kind":"pith_short_8","alias_value":"NOIOGOO6","created_at":"2026-07-05T01:18:52Z"}],"graph_snapshots":[{"event_id":"sha256:96ec3c57ffd7270b44dae4710f1af0731087e66fdd50d70e85ada9c8e50f4cd5","target":"graph","created_at":"2026-07-05T01:18:52Z","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/2002.10478/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a compact binary model with an eccentric orbit to explain periodically active fast radio burst (FRB) sources, where the system consists of a neutron star (NS) with strong dipolar magnetic fields and a magnetic white dwarf (WD). In our model, the WD fills its Roche lobe at periastron, and mass transfer occurs from the WD to the NS around this point. The accreted material may be fragmented into a number of parts, which arrive at the NS at different times. The fragmented magnetized material may trigger magnetic reconnection near the NS surface. The electrons can be accelerated to an ul","authors_text":"Tong Liu, Tuan Yi, Wei-Min Gu","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-02-24T19:03:21Z","title":"A Neutron Star-White Dwarf Binary Model for Periodically Active Fast Radio Burst Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.10478","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:afb280b2e03f33e1899e8228655d9b473a8dacdc9b98630453b87ffec30747fb","target":"record","created_at":"2026-07-05T01:18:52Z","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":"d3f5caf26e4552d8bec290d0654fcdaf43aaa3800e21ece85812c2ccc051b025","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-02-24T19:03:21Z","title_canon_sha256":"42587145cc4f7e4d1308aa2f12048bcf0be340cb4c5fe51ff4774eeb7a5f3eb2"},"schema_version":"1.0","source":{"id":"2002.10478","kind":"arxiv","version":2}},"canonical_sha256":"6b90e339de6d1f49f052e4668926b20f3867704a5bd0e1d0238b462cc596b3cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b90e339de6d1f49f052e4668926b20f3867704a5bd0e1d0238b462cc596b3cd","first_computed_at":"2026-07-05T01:18:52.814599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:18:52.814599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8RfcZmdWGHnNEgDZJ0gy8LYEJgU+pOslHv+24PzV+kPuMyhr7QTZ0XFFIWZbXicNDCmpWzdoH+jlpR/aL+jCCA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:18:52.815076Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.10478","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:afb280b2e03f33e1899e8228655d9b473a8dacdc9b98630453b87ffec30747fb","sha256:96ec3c57ffd7270b44dae4710f1af0731087e66fdd50d70e85ada9c8e50f4cd5"],"state_sha256":"8793b471bb58f96825a67a7574fa1960969f59c710b524fc7f5649d4caa2faa0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8evhKBfkX3LsriPDnipl4xO3vNObIEoXLHR3Y5+GBWnrv6fAgKyIBpITADt4UwGYwoqMl5a00HwAk6kCHqVgDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T19:44:45.719680Z","bundle_sha256":"255cf13750af8f46a3081aaee1f4f79bc07c71b0aac1cc2917245006e1752f09"}}