{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FK6AOI3OKFRSY6Z5V37Q6LLIYL","short_pith_number":"pith:FK6AOI3O","canonical_record":{"source":{"id":"1701.04085","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-01-15T17:47:02Z","cross_cats_sorted":["hep-lat","hep-ph"],"title_canon_sha256":"ca6e2d874c9ebf7d73761cd67ec5e4cf5c9adcf46b3a23b96329d4cf0842161f","abstract_canon_sha256":"b0a5742ec8d95a7b77f0d3931e69634aa4a7e6c7316a38650d1336b4f1116bd8"},"schema_version":"1.0"},"canonical_sha256":"2abc07236e51632c7b3daeff0f2d68c2fee99f63fb7804d7a108055ccb7b18bc","source":{"kind":"arxiv","id":"1701.04085","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.04085","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"arxiv_version","alias_value":"1701.04085v1","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.04085","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"pith_short_12","alias_value":"FK6AOI3OKFRS","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FK6AOI3OKFRSY6Z5","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FK6AOI3O","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FK6AOI3OKFRSY6Z5V37Q6LLIYL","target":"record","payload":{"canonical_record":{"source":{"id":"1701.04085","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-01-15T17:47:02Z","cross_cats_sorted":["hep-lat","hep-ph"],"title_canon_sha256":"ca6e2d874c9ebf7d73761cd67ec5e4cf5c9adcf46b3a23b96329d4cf0842161f","abstract_canon_sha256":"b0a5742ec8d95a7b77f0d3931e69634aa4a7e6c7316a38650d1336b4f1116bd8"},"schema_version":"1.0"},"canonical_sha256":"2abc07236e51632c7b3daeff0f2d68c2fee99f63fb7804d7a108055ccb7b18bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:37.967370Z","signature_b64":"c0jXLdgjNM2E8oIp5g6qslTpzIHx5il9VpaunWBStmMp0fuiQeSeyQHKKfMmrAJrWzF9R6EsGnJxzxZt3htCCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2abc07236e51632c7b3daeff0f2d68c2fee99f63fb7804d7a108055ccb7b18bc","last_reissued_at":"2026-05-18T00:46:37.966815Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:37.966815Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.04085","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":"2026-05-18T00:46:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LtgN4KvtJzgU8QYXowEdPxMcDhHGHHTLwGwMu0BHis87eMfLeDjN+n4NQjoChZcEYkFyndDRnXysBvIG0KVbDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:21:44.039225Z"},"content_sha256":"97e73dcefb32804870fce6dcd1fa08ad49a7dd79c9e4ca8a8c01a9e0e711df4b","schema_version":"1.0","event_id":"sha256:97e73dcefb32804870fce6dcd1fa08ad49a7dd79c9e4ca8a8c01a9e0e711df4b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FK6AOI3OKFRSY6Z5V37Q6LLIYL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Catalysis in Antiferromagnetic Films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-lat","hep-ph"],"primary_cat":"cond-mat.str-el","authors_text":"Christoph P. Hofmann","submitted_at":"2017-01-15T17:47:02Z","abstract_excerpt":"We study the low-temperature behavior of antiferromagnets in two spatial dimensions that are subjected to a magnetic field oriented perpendicular to the staggered magnetization order parameter. The evaluation of the partition function is carried to two-loop order within the systematic effective Lagrangian technique. Low-temperature series that are valid in weak magnetic and staggered fields are derived for the pressure, staggered magnetization, and magnetization. Remarkably, at $T$=0, the staggered magnetization is enhanced by the magnetic field, implying that the phenomenon of magnetic cataly"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.04085","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":"2026-05-18T00:46:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gv1xm7IJwYaJ9R6wTICPHBVv+Mpl1w99ZWsBOG4sUtFrSAyyQJnPp8rov8rO9RuMUhVbDbFjmhHSWu1JyZ/qDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:21:44.039590Z"},"content_sha256":"16d6adaeca1db60012b9f1ba1ece6920524df1859d072221e8cc53bb2665f0d3","schema_version":"1.0","event_id":"sha256:16d6adaeca1db60012b9f1ba1ece6920524df1859d072221e8cc53bb2665f0d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FK6AOI3OKFRSY6Z5V37Q6LLIYL/bundle.json","state_url":"https://pith.science/pith/FK6AOI3OKFRSY6Z5V37Q6LLIYL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FK6AOI3OKFRSY6Z5V37Q6LLIYL/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":"2026-06-28T23:21:44Z","links":{"resolver":"https://pith.science/pith/FK6AOI3OKFRSY6Z5V37Q6LLIYL","bundle":"https://pith.science/pith/FK6AOI3OKFRSY6Z5V37Q6LLIYL/bundle.json","state":"https://pith.science/pith/FK6AOI3OKFRSY6Z5V37Q6LLIYL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FK6AOI3OKFRSY6Z5V37Q6LLIYL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FK6AOI3OKFRSY6Z5V37Q6LLIYL","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":"b0a5742ec8d95a7b77f0d3931e69634aa4a7e6c7316a38650d1336b4f1116bd8","cross_cats_sorted":["hep-lat","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-01-15T17:47:02Z","title_canon_sha256":"ca6e2d874c9ebf7d73761cd67ec5e4cf5c9adcf46b3a23b96329d4cf0842161f"},"schema_version":"1.0","source":{"id":"1701.04085","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.04085","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"arxiv_version","alias_value":"1701.04085v1","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.04085","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"pith_short_12","alias_value":"FK6AOI3OKFRS","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FK6AOI3OKFRSY6Z5","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FK6AOI3O","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:16d6adaeca1db60012b9f1ba1ece6920524df1859d072221e8cc53bb2665f0d3","target":"graph","created_at":"2026-05-18T00:46:37Z","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 the low-temperature behavior of antiferromagnets in two spatial dimensions that are subjected to a magnetic field oriented perpendicular to the staggered magnetization order parameter. The evaluation of the partition function is carried to two-loop order within the systematic effective Lagrangian technique. Low-temperature series that are valid in weak magnetic and staggered fields are derived for the pressure, staggered magnetization, and magnetization. Remarkably, at $T$=0, the staggered magnetization is enhanced by the magnetic field, implying that the phenomenon of magnetic cataly","authors_text":"Christoph P. Hofmann","cross_cats":["hep-lat","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-01-15T17:47:02Z","title":"Magnetic Catalysis in Antiferromagnetic Films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.04085","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":"sha256:97e73dcefb32804870fce6dcd1fa08ad49a7dd79c9e4ca8a8c01a9e0e711df4b","target":"record","created_at":"2026-05-18T00:46:37Z","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":"b0a5742ec8d95a7b77f0d3931e69634aa4a7e6c7316a38650d1336b4f1116bd8","cross_cats_sorted":["hep-lat","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-01-15T17:47:02Z","title_canon_sha256":"ca6e2d874c9ebf7d73761cd67ec5e4cf5c9adcf46b3a23b96329d4cf0842161f"},"schema_version":"1.0","source":{"id":"1701.04085","kind":"arxiv","version":1}},"canonical_sha256":"2abc07236e51632c7b3daeff0f2d68c2fee99f63fb7804d7a108055ccb7b18bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2abc07236e51632c7b3daeff0f2d68c2fee99f63fb7804d7a108055ccb7b18bc","first_computed_at":"2026-05-18T00:46:37.966815Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:37.966815Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c0jXLdgjNM2E8oIp5g6qslTpzIHx5il9VpaunWBStmMp0fuiQeSeyQHKKfMmrAJrWzF9R6EsGnJxzxZt3htCCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:37.967370Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.04085","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97e73dcefb32804870fce6dcd1fa08ad49a7dd79c9e4ca8a8c01a9e0e711df4b","sha256:16d6adaeca1db60012b9f1ba1ece6920524df1859d072221e8cc53bb2665f0d3"],"state_sha256":"f758c29465e7240dcbdfb55042081fe09dc74f855df024b8d36ba7ab9d97b6af"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rwfs2qEDaE8mwk4oW8dIEa7uRRKVvF0F6VE89hWEZa7GPe4B1oVDoHkN2WqnDErDrUVPGkfuLYA6jABEOD6VBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T23:21:44.041394Z","bundle_sha256":"a15f9464bcc4f0015edcc83aed2f3414f5c8e9524af5ddc4baf83f4d6b6cf6a6"}}