{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:HN73HROQIRTUH3VL24ADXDPXSD","short_pith_number":"pith:HN73HROQ","canonical_record":{"source":{"id":"2102.04669","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-02-09T06:34:15Z","cross_cats_sorted":[],"title_canon_sha256":"4411ac9ec41a6c0c68a7ff4d2b7f9b5a3dfb10e698bef2a844c2bf72972e3f60","abstract_canon_sha256":"f09908924c238911ba2dbcfe9ea320d6ccbc63de00d95a7f807b276721bcb517"},"schema_version":"1.0"},"canonical_sha256":"3b7fb3c5d0446743eeabd7003b8df790dd88f3067f3b905c57a03a4748939a6c","source":{"kind":"arxiv","id":"2102.04669","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.04669","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"arxiv_version","alias_value":"2102.04669v1","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.04669","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_12","alias_value":"HN73HROQIRTU","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_16","alias_value":"HN73HROQIRTUH3VL","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_8","alias_value":"HN73HROQ","created_at":"2026-07-05T02:53:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:HN73HROQIRTUH3VL24ADXDPXSD","target":"record","payload":{"canonical_record":{"source":{"id":"2102.04669","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-02-09T06:34:15Z","cross_cats_sorted":[],"title_canon_sha256":"4411ac9ec41a6c0c68a7ff4d2b7f9b5a3dfb10e698bef2a844c2bf72972e3f60","abstract_canon_sha256":"f09908924c238911ba2dbcfe9ea320d6ccbc63de00d95a7f807b276721bcb517"},"schema_version":"1.0"},"canonical_sha256":"3b7fb3c5d0446743eeabd7003b8df790dd88f3067f3b905c57a03a4748939a6c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:53:35.524179Z","signature_b64":"7CQN0h9XktiZxizaL6gbQm9UBNBLIySEDYf48wkPJBYpqSKHPgq8kD/u/uV8WxbtCXcZa9a6svl7Do4KL1oqBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3b7fb3c5d0446743eeabd7003b8df790dd88f3067f3b905c57a03a4748939a6c","last_reissued_at":"2026-07-05T02:53:35.523686Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:53:35.523686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.04669","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":"2026-07-05T02:53:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qo45ye6nn7K9FpQHpQctUCFmXjP/B2CcopIb8cn49KRWJP/jVOaA00GRwg9bUjiHmvg02JGni+s09sbgfOLdBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T18:19:50.535080Z"},"content_sha256":"5e3cb763777d6cd417ec12f412aa0caf8fe7588939aa39dee967db4634c33a1f","schema_version":"1.0","event_id":"sha256:5e3cb763777d6cd417ec12f412aa0caf8fe7588939aa39dee967db4634c33a1f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:HN73HROQIRTUH3VL24ADXDPXSD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Axion induced spin effective couplings","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Lijing Shao, Zihang Wang","submitted_at":"2021-02-09T06:34:15Z","abstract_excerpt":"Detecting axionic dark matter induced electron or nucleon oscillating electric dipole moment (OEDM) has become a new way for dark matter searches. We re-examine such axion-spin couplings in external electromagnetic fields. We point out that axion-photon interaction induces an electron spin effective coupling, which is different from an OEDM. In particular, the axion-spin effective coupling is directly related to magnetic field rather than electric field. For axion-electron or axion-nucleon couplings, an OEDM of fermion is introduced, whose effect in ultralight axion cases depends on whether ax"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.04669","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/2102.04669/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":"2026-07-05T02:53:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DZWIckGy6UrAfDJYsK0Ska25XnxxIu/UWzBNweXElGAoByAYYO29U26LQDbpYkKB14pFjbYZIKMZx66bVj9HCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T18:19:50.535605Z"},"content_sha256":"eaa984018927c7748449a17216b8d2e9ab1c414841965c9020869ae8d59392a9","schema_version":"1.0","event_id":"sha256:eaa984018927c7748449a17216b8d2e9ab1c414841965c9020869ae8d59392a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HN73HROQIRTUH3VL24ADXDPXSD/bundle.json","state_url":"https://pith.science/pith/HN73HROQIRTUH3VL24ADXDPXSD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HN73HROQIRTUH3VL24ADXDPXSD/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":"2026-08-12T18:19:50Z","links":{"resolver":"https://pith.science/pith/HN73HROQIRTUH3VL24ADXDPXSD","bundle":"https://pith.science/pith/HN73HROQIRTUH3VL24ADXDPXSD/bundle.json","state":"https://pith.science/pith/HN73HROQIRTUH3VL24ADXDPXSD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HN73HROQIRTUH3VL24ADXDPXSD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:HN73HROQIRTUH3VL24ADXDPXSD","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":"f09908924c238911ba2dbcfe9ea320d6ccbc63de00d95a7f807b276721bcb517","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-02-09T06:34:15Z","title_canon_sha256":"4411ac9ec41a6c0c68a7ff4d2b7f9b5a3dfb10e698bef2a844c2bf72972e3f60"},"schema_version":"1.0","source":{"id":"2102.04669","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.04669","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"arxiv_version","alias_value":"2102.04669v1","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.04669","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_12","alias_value":"HN73HROQIRTU","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_16","alias_value":"HN73HROQIRTUH3VL","created_at":"2026-07-05T02:53:35Z"},{"alias_kind":"pith_short_8","alias_value":"HN73HROQ","created_at":"2026-07-05T02:53:35Z"}],"graph_snapshots":[{"event_id":"sha256:eaa984018927c7748449a17216b8d2e9ab1c414841965c9020869ae8d59392a9","target":"graph","created_at":"2026-07-05T02:53:35Z","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/2102.04669/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Detecting axionic dark matter induced electron or nucleon oscillating electric dipole moment (OEDM) has become a new way for dark matter searches. We re-examine such axion-spin couplings in external electromagnetic fields. We point out that axion-photon interaction induces an electron spin effective coupling, which is different from an OEDM. In particular, the axion-spin effective coupling is directly related to magnetic field rather than electric field. For axion-electron or axion-nucleon couplings, an OEDM of fermion is introduced, whose effect in ultralight axion cases depends on whether ax","authors_text":"Lijing Shao, Zihang Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-02-09T06:34:15Z","title":"Axion induced spin effective couplings"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.04669","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":"sha256:5e3cb763777d6cd417ec12f412aa0caf8fe7588939aa39dee967db4634c33a1f","target":"record","created_at":"2026-07-05T02:53:35Z","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":"f09908924c238911ba2dbcfe9ea320d6ccbc63de00d95a7f807b276721bcb517","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-02-09T06:34:15Z","title_canon_sha256":"4411ac9ec41a6c0c68a7ff4d2b7f9b5a3dfb10e698bef2a844c2bf72972e3f60"},"schema_version":"1.0","source":{"id":"2102.04669","kind":"arxiv","version":1}},"canonical_sha256":"3b7fb3c5d0446743eeabd7003b8df790dd88f3067f3b905c57a03a4748939a6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3b7fb3c5d0446743eeabd7003b8df790dd88f3067f3b905c57a03a4748939a6c","first_computed_at":"2026-07-05T02:53:35.523686Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:53:35.523686Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7CQN0h9XktiZxizaL6gbQm9UBNBLIySEDYf48wkPJBYpqSKHPgq8kD/u/uV8WxbtCXcZa9a6svl7Do4KL1oqBg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:53:35.524179Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.04669","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5e3cb763777d6cd417ec12f412aa0caf8fe7588939aa39dee967db4634c33a1f","sha256:eaa984018927c7748449a17216b8d2e9ab1c414841965c9020869ae8d59392a9"],"state_sha256":"d23f3c3105ee87b21d3cc7af94a8a4dc2812887e8cc4d7e2650e02059f65d765"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MVP2owdA5/FX6KGhgZ38nkDjgfoTfSWCUFm25D/sTuJu/ldTqc3jsujzcAPBaZlTn5dop/ZovT+TDq399xQeAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T18:19:50.541411Z","bundle_sha256":"aa995f59d32c9f67dccfe3dea8db2d0f04e046be07eb3bbbdc6722aa6eb6ee87"}}