{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IASIJAJQXB52MTG6THDYABXECL","short_pith_number":"pith:IASIJAJQ","canonical_record":{"source":{"id":"1910.14058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-30T18:00:25Z","cross_cats_sorted":[],"title_canon_sha256":"3d08298553ce8cb30e6bb68cc08abaf1380aed856f7cc59abaf286c6a4717ea3","abstract_canon_sha256":"050dd9094198d372db6cd0dc5846f3151d51450431a296b2dee06cba8d2d8c15"},"schema_version":"1.0"},"canonical_sha256":"4024848130b87ba64cde99c78006e412eaa8618dca5fece800f0ec0c1cb4f557","source":{"kind":"arxiv","id":"1910.14058","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14058","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14058v1","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14058","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"IASIJAJQXB52","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"pith_short_16","alias_value":"IASIJAJQXB52MTG6","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"pith_short_8","alias_value":"IASIJAJQ","created_at":"2026-07-05T00:16:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IASIJAJQXB52MTG6THDYABXECL","target":"record","payload":{"canonical_record":{"source":{"id":"1910.14058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-30T18:00:25Z","cross_cats_sorted":[],"title_canon_sha256":"3d08298553ce8cb30e6bb68cc08abaf1380aed856f7cc59abaf286c6a4717ea3","abstract_canon_sha256":"050dd9094198d372db6cd0dc5846f3151d51450431a296b2dee06cba8d2d8c15"},"schema_version":"1.0"},"canonical_sha256":"4024848130b87ba64cde99c78006e412eaa8618dca5fece800f0ec0c1cb4f557","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:16:07.100530Z","signature_b64":"QnRL8mOxem9YWZZK0sv7caVmKIw9X8+6X5SOmSoEywW3HckvSYTR21k9AOBp4+Sr2PWKIfutEc6mfGnS7jCmCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4024848130b87ba64cde99c78006e412eaa8618dca5fece800f0ec0c1cb4f557","last_reissued_at":"2026-07-05T00:16:07.099913Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:16:07.099913Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.14058","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":"2026-07-05T00:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5hXSvksqy61Zy1yg/mgL22bYvvV6R0HJuj8jOTDPy8i63nAhNqy0p4uzg/IbGzRW7W/X1Ohc+CfqlbcCwfBTDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T13:12:26.695492Z"},"content_sha256":"cbc47860c067550764c1647f6da0313a24a6865682586c94c2f71cef88cd2f18","schema_version":"1.0","event_id":"sha256:cbc47860c067550764c1647f6da0313a24a6865682586c94c2f71cef88cd2f18"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IASIJAJQXB52MTG6THDYABXECL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How mergers magnetise massive stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Fabian R.N. Schneider, Friedrich K. R\\\"opke, Philipp Podsiadlowski, R\\\"udiger Pakmor, Sebastian T. Ohlmann, Steven A. Balbus, Volker Springel","submitted_at":"2019-10-30T18:00:25Z","abstract_excerpt":"Magnetic fields are ubiquitous in the Universe. The Sun's magnetic field drives the solar wind and causes solar flares and other energetic surface phenomena that profoundly affect space weather here on Earth. The first magnetic field in a star other than the Sun was detected in 1947 in the peculiar A-type star 78 Vir. It is now known that the magnetic fields of the Sun and other low-mass stars (<1.5 solar masses) are generated in-situ by a dynamo process in their turbulent, convective envelopes. Unlike such stars, intermediate-mass and high-mass stars (>1.5 solar masses; referred to as \"massiv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14058","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1910.14058/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":"2026-07-05T00:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0DdWVPNMq9vk0v5+0uvouy8uXBfxiW7l6tX0cvcAYMaKeNruIGkX/8eflwNKKvFAA6p8OAiwKEJL4Kf55U8BCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T13:12:26.696147Z"},"content_sha256":"255f100dca51eedc0bffe759dc01ac7f5124a2450e64969cd7c87563ab383117","schema_version":"1.0","event_id":"sha256:255f100dca51eedc0bffe759dc01ac7f5124a2450e64969cd7c87563ab383117"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IASIJAJQXB52MTG6THDYABXECL/bundle.json","state_url":"https://pith.science/pith/IASIJAJQXB52MTG6THDYABXECL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IASIJAJQXB52MTG6THDYABXECL/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":"2026-07-05T13:12:26Z","links":{"resolver":"https://pith.science/pith/IASIJAJQXB52MTG6THDYABXECL","bundle":"https://pith.science/pith/IASIJAJQXB52MTG6THDYABXECL/bundle.json","state":"https://pith.science/pith/IASIJAJQXB52MTG6THDYABXECL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IASIJAJQXB52MTG6THDYABXECL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IASIJAJQXB52MTG6THDYABXECL","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":"050dd9094198d372db6cd0dc5846f3151d51450431a296b2dee06cba8d2d8c15","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-30T18:00:25Z","title_canon_sha256":"3d08298553ce8cb30e6bb68cc08abaf1380aed856f7cc59abaf286c6a4717ea3"},"schema_version":"1.0","source":{"id":"1910.14058","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.14058","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1910.14058v1","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.14058","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"IASIJAJQXB52","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"pith_short_16","alias_value":"IASIJAJQXB52MTG6","created_at":"2026-07-05T00:16:07Z"},{"alias_kind":"pith_short_8","alias_value":"IASIJAJQ","created_at":"2026-07-05T00:16:07Z"}],"graph_snapshots":[{"event_id":"sha256:255f100dca51eedc0bffe759dc01ac7f5124a2450e64969cd7c87563ab383117","target":"graph","created_at":"2026-07-05T00:16:07Z","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/1910.14058/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Magnetic fields are ubiquitous in the Universe. The Sun's magnetic field drives the solar wind and causes solar flares and other energetic surface phenomena that profoundly affect space weather here on Earth. The first magnetic field in a star other than the Sun was detected in 1947 in the peculiar A-type star 78 Vir. It is now known that the magnetic fields of the Sun and other low-mass stars (<1.5 solar masses) are generated in-situ by a dynamo process in their turbulent, convective envelopes. Unlike such stars, intermediate-mass and high-mass stars (>1.5 solar masses; referred to as \"massiv","authors_text":"Fabian R.N. Schneider, Friedrich K. R\\\"opke, Philipp Podsiadlowski, R\\\"udiger Pakmor, Sebastian T. Ohlmann, Steven A. Balbus, Volker Springel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-30T18:00:25Z","title":"How mergers magnetise massive stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.14058","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:cbc47860c067550764c1647f6da0313a24a6865682586c94c2f71cef88cd2f18","target":"record","created_at":"2026-07-05T00:16:07Z","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":"050dd9094198d372db6cd0dc5846f3151d51450431a296b2dee06cba8d2d8c15","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-30T18:00:25Z","title_canon_sha256":"3d08298553ce8cb30e6bb68cc08abaf1380aed856f7cc59abaf286c6a4717ea3"},"schema_version":"1.0","source":{"id":"1910.14058","kind":"arxiv","version":1}},"canonical_sha256":"4024848130b87ba64cde99c78006e412eaa8618dca5fece800f0ec0c1cb4f557","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4024848130b87ba64cde99c78006e412eaa8618dca5fece800f0ec0c1cb4f557","first_computed_at":"2026-07-05T00:16:07.099913Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:16:07.099913Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QnRL8mOxem9YWZZK0sv7caVmKIw9X8+6X5SOmSoEywW3HckvSYTR21k9AOBp4+Sr2PWKIfutEc6mfGnS7jCmCg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:16:07.100530Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.14058","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbc47860c067550764c1647f6da0313a24a6865682586c94c2f71cef88cd2f18","sha256:255f100dca51eedc0bffe759dc01ac7f5124a2450e64969cd7c87563ab383117"],"state_sha256":"d53866fc2e8474daeb413d8b66835d9da5530b97bc98df21dfcbdb09bffda2cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Af/tnmWbIfRVXarx2m7li5b29uj88OtonenJ/va4GFL0fhAB6rZC8gXvSjyRHXhWtftX+1izw4xcf0RtChiZCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T13:12:26.699687Z","bundle_sha256":"1c6da683e7a537f5ee01222fd6844952ccddbcf64b8a18c134a1a06a330ce3bd"}}