{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:OKNJ27U4YD2KT4CPNUNEM4K5RX","short_pith_number":"pith:OKNJ27U4","canonical_record":{"source":{"id":"1412.0184","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-11-30T06:55:46Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"9b1fb9cd40ef04de79a69210043859229a9ec43eb62e169894bc5a7b5a4a5bac","abstract_canon_sha256":"19274978dd5cd9ab666d3df24f6939a0a0e2e788519890cee6ff1567d5a760a1"},"schema_version":"1.0"},"canonical_sha256":"729a9d7e9cc0f4a9f04f6d1a46715d8de1740b3e8a03ce85641af64fdbefecdc","source":{"kind":"arxiv","id":"1412.0184","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.0184","created_at":"2026-05-18T01:41:24Z"},{"alias_kind":"arxiv_version","alias_value":"1412.0184v1","created_at":"2026-05-18T01:41:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.0184","created_at":"2026-05-18T01:41:24Z"},{"alias_kind":"pith_short_12","alias_value":"OKNJ27U4YD2K","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OKNJ27U4YD2KT4CP","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OKNJ27U4","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:OKNJ27U4YD2KT4CPNUNEM4K5RX","target":"record","payload":{"canonical_record":{"source":{"id":"1412.0184","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-11-30T06:55:46Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"9b1fb9cd40ef04de79a69210043859229a9ec43eb62e169894bc5a7b5a4a5bac","abstract_canon_sha256":"19274978dd5cd9ab666d3df24f6939a0a0e2e788519890cee6ff1567d5a760a1"},"schema_version":"1.0"},"canonical_sha256":"729a9d7e9cc0f4a9f04f6d1a46715d8de1740b3e8a03ce85641af64fdbefecdc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:24.825686Z","signature_b64":"6nJfKrbk2sUP+gAvOyo6Slgj+8KFlGaPSY9NEH2NPdot92CLPixv4HDwKvR7XXekpwmsjwJuQjnmO829C1RgBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"729a9d7e9cc0f4a9f04f6d1a46715d8de1740b3e8a03ce85641af64fdbefecdc","last_reissued_at":"2026-05-18T01:41:24.824935Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:24.824935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.0184","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":"2026-05-18T01:41:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vckyXOejCNFqadV6kuYwEDZEviD0LCvhY/TjON+v2R1VSFCCInCX7XCMIkmgczVrM+vckMtgHsKqO/vqBVJOAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:09:03.262408Z"},"content_sha256":"8aa7238ef223045e37b823b79d7683be1562936990d31aa02f126a4e9024e396","schema_version":"1.0","event_id":"sha256:8aa7238ef223045e37b823b79d7683be1562936990d31aa02f126a4e9024e396"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:OKNJ27U4YD2KT4CPNUNEM4K5RX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Theory of Helimagnetic Thin Films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.str-el","authors_text":"H. T. Diep (LPTM)","submitted_at":"2014-11-30T06:55:46Z","abstract_excerpt":"We study properties of a helimagnetic thin film with quantum Heisenberg spin model by using the Green's function method. Surface spin configuration is calculated by minimizing the spin interaction energy. It is shown that the angles between spins near the surface are strongly modified with respect to the bulk configuration. Taking into account this surface spin reconstruction, we calculate self-consistently the spin-wave spectrum and the layer magnetizations as functions of temperature up to the disordered phase. The spin-wave spectrum shows the existence of a surface-localized branch which ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.0184","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":""},"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":"2026-05-18T01:41:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AZcHD5NFaz6ZSiskis5FSBrztnR10tfqnoANRXOb+ekXvJV6X/p2OVYamSrqA0I/6JhfL6acQSXpa6hoCZdpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:09:03.262997Z"},"content_sha256":"18f95d45695c923f3ffc15b6d932e30a5078ec7caa6c1cabcf2a5e0da8535cbd","schema_version":"1.0","event_id":"sha256:18f95d45695c923f3ffc15b6d932e30a5078ec7caa6c1cabcf2a5e0da8535cbd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OKNJ27U4YD2KT4CPNUNEM4K5RX/bundle.json","state_url":"https://pith.science/pith/OKNJ27U4YD2KT4CPNUNEM4K5RX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OKNJ27U4YD2KT4CPNUNEM4K5RX/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":"2026-05-27T18:09:03Z","links":{"resolver":"https://pith.science/pith/OKNJ27U4YD2KT4CPNUNEM4K5RX","bundle":"https://pith.science/pith/OKNJ27U4YD2KT4CPNUNEM4K5RX/bundle.json","state":"https://pith.science/pith/OKNJ27U4YD2KT4CPNUNEM4K5RX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OKNJ27U4YD2KT4CPNUNEM4K5RX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:OKNJ27U4YD2KT4CPNUNEM4K5RX","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":"19274978dd5cd9ab666d3df24f6939a0a0e2e788519890cee6ff1567d5a760a1","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-11-30T06:55:46Z","title_canon_sha256":"9b1fb9cd40ef04de79a69210043859229a9ec43eb62e169894bc5a7b5a4a5bac"},"schema_version":"1.0","source":{"id":"1412.0184","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.0184","created_at":"2026-05-18T01:41:24Z"},{"alias_kind":"arxiv_version","alias_value":"1412.0184v1","created_at":"2026-05-18T01:41:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.0184","created_at":"2026-05-18T01:41:24Z"},{"alias_kind":"pith_short_12","alias_value":"OKNJ27U4YD2K","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OKNJ27U4YD2KT4CP","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OKNJ27U4","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:18f95d45695c923f3ffc15b6d932e30a5078ec7caa6c1cabcf2a5e0da8535cbd","target":"graph","created_at":"2026-05-18T01:41:24Z","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 study properties of a helimagnetic thin film with quantum Heisenberg spin model by using the Green's function method. Surface spin configuration is calculated by minimizing the spin interaction energy. It is shown that the angles between spins near the surface are strongly modified with respect to the bulk configuration. Taking into account this surface spin reconstruction, we calculate self-consistently the spin-wave spectrum and the layer magnetizations as functions of temperature up to the disordered phase. The spin-wave spectrum shows the existence of a surface-localized branch which ca","authors_text":"H. T. Diep (LPTM)","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-11-30T06:55:46Z","title":"Quantum Theory of Helimagnetic Thin Films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.0184","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":"sha256:8aa7238ef223045e37b823b79d7683be1562936990d31aa02f126a4e9024e396","target":"record","created_at":"2026-05-18T01:41:24Z","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":"19274978dd5cd9ab666d3df24f6939a0a0e2e788519890cee6ff1567d5a760a1","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-11-30T06:55:46Z","title_canon_sha256":"9b1fb9cd40ef04de79a69210043859229a9ec43eb62e169894bc5a7b5a4a5bac"},"schema_version":"1.0","source":{"id":"1412.0184","kind":"arxiv","version":1}},"canonical_sha256":"729a9d7e9cc0f4a9f04f6d1a46715d8de1740b3e8a03ce85641af64fdbefecdc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"729a9d7e9cc0f4a9f04f6d1a46715d8de1740b3e8a03ce85641af64fdbefecdc","first_computed_at":"2026-05-18T01:41:24.824935Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:24.824935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6nJfKrbk2sUP+gAvOyo6Slgj+8KFlGaPSY9NEH2NPdot92CLPixv4HDwKvR7XXekpwmsjwJuQjnmO829C1RgBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:24.825686Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.0184","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8aa7238ef223045e37b823b79d7683be1562936990d31aa02f126a4e9024e396","sha256:18f95d45695c923f3ffc15b6d932e30a5078ec7caa6c1cabcf2a5e0da8535cbd"],"state_sha256":"4224fa33d8685ced5a6fd593bcd7e5588f799bd6ae7a13825ef4250273781e72"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/4MrecHnz/iMJ+PxzBty5QLnsy9hQrwHs3MSbgQzRXPqFhgXvw/2tLWQiPtGsLHnmS20ANmvEm5RJbPS5mwaDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T18:09:03.266280Z","bundle_sha256":"498516f7b760a997fd07fef6998cf41c1a08996d6e41eed9db000b052f4d7d53"}}