{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:567SF3H243QCSDWUOOFBKMFMNY","short_pith_number":"pith:567SF3H2","canonical_record":{"source":{"id":"1511.04022","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-12T19:30:09Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas"],"title_canon_sha256":"5a198a1e9a3ec125b165310e44e3c88e88aee06d4f02f57b82006a8b30d307b4","abstract_canon_sha256":"3406530cd9eeee35b3ec01faebe3eca549b0cf7316097178b9113f91fdebf26d"},"schema_version":"1.0"},"canonical_sha256":"efbf22ecfae6e0290ed4738a1530ac6e0026ec4fff55da62b3d7ae13e3e3e56e","source":{"kind":"arxiv","id":"1511.04022","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.04022","created_at":"2026-05-18T00:46:26Z"},{"alias_kind":"arxiv_version","alias_value":"1511.04022v4","created_at":"2026-05-18T00:46:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.04022","created_at":"2026-05-18T00:46:26Z"},{"alias_kind":"pith_short_12","alias_value":"567SF3H243QC","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"567SF3H243QCSDWU","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"567SF3H2","created_at":"2026-05-18T12:29:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:567SF3H243QCSDWUOOFBKMFMNY","target":"record","payload":{"canonical_record":{"source":{"id":"1511.04022","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-12T19:30:09Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas"],"title_canon_sha256":"5a198a1e9a3ec125b165310e44e3c88e88aee06d4f02f57b82006a8b30d307b4","abstract_canon_sha256":"3406530cd9eeee35b3ec01faebe3eca549b0cf7316097178b9113f91fdebf26d"},"schema_version":"1.0"},"canonical_sha256":"efbf22ecfae6e0290ed4738a1530ac6e0026ec4fff55da62b3d7ae13e3e3e56e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:26.513689Z","signature_b64":"+BnpBKrt9zwAsKi3QtjCsj4HCsyuKYZ+WOui1YK+N9sLbCkumQIJn4wZKeQaZH1oetZT2W20bZfI0OiqqMKFBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efbf22ecfae6e0290ed4738a1530ac6e0026ec4fff55da62b3d7ae13e3e3e56e","last_reissued_at":"2026-05-18T00:46:26.513069Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:26.513069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.04022","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:46:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sEGsLyoMurmiDSzVgCvAOyOdVQ1WDkalFAsMX0yvI/93czX2irS0HVsc4Cx8KEnLhpk6D1XgjFH9Jcf+m2b5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:13:40.030797Z"},"content_sha256":"c52756df31c113f43685e2b812dabd475b98da0d01eb7e6ac735ae213cc8bb63","schema_version":"1.0","event_id":"sha256:c52756df31c113f43685e2b812dabd475b98da0d01eb7e6ac735ae213cc8bb63"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:567SF3H243QCSDWUOOFBKMFMNY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Rigid Rotor in the Quantum Regime: Theoretical Toolbox","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.quant-gas"],"primary_cat":"quant-ph","authors_text":"Cosimo C. Rusconi, Oriol Romero-Isart","submitted_at":"2015-11-12T19:30:09Z","abstract_excerpt":"We describe the quantum dynamics of a magnetic rigid rotor in the mesoscopic scale where the Einstein-De Haas effect is predominant. In particular, we consider a single-domain magnetic nanoparticle with uniaxial anisotropy in a magnetic trap. Starting from the basic Hamiltonian of the system under the macrospin approximation, we derive a bosonized Hamiltonian describing the center-of-mass motion, the total angular momentum, and the macrospin degrees of freedom of the particle treated as a rigid body. This bosonized Hamiltonian can be approximated by a simple quadratic Hamiltonian that captures"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04022","kind":"arxiv","version":4},"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":"2026-05-18T00:46:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0lAO4RWwjL1vUubi/wUCXWHjm7cXuoM17cbdUmYlaF2MJc8qmEA+tkZIuC+RTma4CIeDmpfZOGETkAsi/InLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T07:13:40.031256Z"},"content_sha256":"318394603f72356fcfe6b9a88ae183f0a3ca15f0f9902e4b295d188b261e794c","schema_version":"1.0","event_id":"sha256:318394603f72356fcfe6b9a88ae183f0a3ca15f0f9902e4b295d188b261e794c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/567SF3H243QCSDWUOOFBKMFMNY/bundle.json","state_url":"https://pith.science/pith/567SF3H243QCSDWUOOFBKMFMNY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/567SF3H243QCSDWUOOFBKMFMNY/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":"2026-08-04T07:13:40Z","links":{"resolver":"https://pith.science/pith/567SF3H243QCSDWUOOFBKMFMNY","bundle":"https://pith.science/pith/567SF3H243QCSDWUOOFBKMFMNY/bundle.json","state":"https://pith.science/pith/567SF3H243QCSDWUOOFBKMFMNY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/567SF3H243QCSDWUOOFBKMFMNY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:567SF3H243QCSDWUOOFBKMFMNY","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":"3406530cd9eeee35b3ec01faebe3eca549b0cf7316097178b9113f91fdebf26d","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-12T19:30:09Z","title_canon_sha256":"5a198a1e9a3ec125b165310e44e3c88e88aee06d4f02f57b82006a8b30d307b4"},"schema_version":"1.0","source":{"id":"1511.04022","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.04022","created_at":"2026-05-18T00:46:26Z"},{"alias_kind":"arxiv_version","alias_value":"1511.04022v4","created_at":"2026-05-18T00:46:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.04022","created_at":"2026-05-18T00:46:26Z"},{"alias_kind":"pith_short_12","alias_value":"567SF3H243QC","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"567SF3H243QCSDWU","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"567SF3H2","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:318394603f72356fcfe6b9a88ae183f0a3ca15f0f9902e4b295d188b261e794c","target":"graph","created_at":"2026-05-18T00:46:26Z","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":"We describe the quantum dynamics of a magnetic rigid rotor in the mesoscopic scale where the Einstein-De Haas effect is predominant. In particular, we consider a single-domain magnetic nanoparticle with uniaxial anisotropy in a magnetic trap. Starting from the basic Hamiltonian of the system under the macrospin approximation, we derive a bosonized Hamiltonian describing the center-of-mass motion, the total angular momentum, and the macrospin degrees of freedom of the particle treated as a rigid body. This bosonized Hamiltonian can be approximated by a simple quadratic Hamiltonian that captures","authors_text":"Cosimo C. Rusconi, Oriol Romero-Isart","cross_cats":["cond-mat.mes-hall","cond-mat.quant-gas"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-12T19:30:09Z","title":"Magnetic Rigid Rotor in the Quantum Regime: Theoretical Toolbox"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.04022","kind":"arxiv","version":4},"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:c52756df31c113f43685e2b812dabd475b98da0d01eb7e6ac735ae213cc8bb63","target":"record","created_at":"2026-05-18T00:46:26Z","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":"3406530cd9eeee35b3ec01faebe3eca549b0cf7316097178b9113f91fdebf26d","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-11-12T19:30:09Z","title_canon_sha256":"5a198a1e9a3ec125b165310e44e3c88e88aee06d4f02f57b82006a8b30d307b4"},"schema_version":"1.0","source":{"id":"1511.04022","kind":"arxiv","version":4}},"canonical_sha256":"efbf22ecfae6e0290ed4738a1530ac6e0026ec4fff55da62b3d7ae13e3e3e56e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efbf22ecfae6e0290ed4738a1530ac6e0026ec4fff55da62b3d7ae13e3e3e56e","first_computed_at":"2026-05-18T00:46:26.513069Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:26.513069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+BnpBKrt9zwAsKi3QtjCsj4HCsyuKYZ+WOui1YK+N9sLbCkumQIJn4wZKeQaZH1oetZT2W20bZfI0OiqqMKFBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:26.513689Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.04022","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c52756df31c113f43685e2b812dabd475b98da0d01eb7e6ac735ae213cc8bb63","sha256:318394603f72356fcfe6b9a88ae183f0a3ca15f0f9902e4b295d188b261e794c"],"state_sha256":"e944ef7102944783cfd82cee4d901e60903d2569d90c96b7b9f658d1910ef184"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jq1x/EoZol3R0BiUhGNFLUrGcuZhAkmmVdTVOIAQXuf9F5EMV5SIFHtCbL9IRfW5O+GocqtPf5TXq/ZqfXpKAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T07:13:40.035796Z","bundle_sha256":"ce8d3906a7bb9d9d5f0f5426526b7f9f80d2bde45bdadbfcba71950f5f164127"}}