{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TPYKB2FFEZOI55QGKAOZX6OFFM","short_pith_number":"pith:TPYKB2FF","canonical_record":{"source":{"id":"1904.06115","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-04-12T09:20:21Z","cross_cats_sorted":[],"title_canon_sha256":"f54b13122be3703a005fa8b333d04d261802d8d9f11c5fcff287ee92bf5aaec4","abstract_canon_sha256":"b00e0f22e5c1780379d16e3d343a45ac577e382a17d17d960ee564bc62d94de1"},"schema_version":"1.0"},"canonical_sha256":"9bf0a0e8a5265c8ef606501d9bf9c52b3f67698e74f010ed6476d55ddb06b5f0","source":{"kind":"arxiv","id":"1904.06115","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.06115","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"arxiv_version","alias_value":"1904.06115v2","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.06115","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"pith_short_12","alias_value":"TPYKB2FFEZOI","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"TPYKB2FFEZOI55QG","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"TPYKB2FF","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TPYKB2FFEZOI55QGKAOZX6OFFM","target":"record","payload":{"canonical_record":{"source":{"id":"1904.06115","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-04-12T09:20:21Z","cross_cats_sorted":[],"title_canon_sha256":"f54b13122be3703a005fa8b333d04d261802d8d9f11c5fcff287ee92bf5aaec4","abstract_canon_sha256":"b00e0f22e5c1780379d16e3d343a45ac577e382a17d17d960ee564bc62d94de1"},"schema_version":"1.0"},"canonical_sha256":"9bf0a0e8a5265c8ef606501d9bf9c52b3f67698e74f010ed6476d55ddb06b5f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:09.066437Z","signature_b64":"uUneDzaNdInmj4wFwuqDIjFqjOOudK1GqRb4AQ6N412A5zdGMMkMB8iNkL0ObHnKRryzGOfmi/YWL5ZlMTtuDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bf0a0e8a5265c8ef606501d9bf9c52b3f67698e74f010ed6476d55ddb06b5f0","last_reissued_at":"2026-05-17T23:41:09.065679Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:09.065679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.06115","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:41:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nV+roBMluiMej9w3KLxw1wlwHBkfH5JRdTAk0GO/X6ZDnzNm+naZhpVP2YSumYwJynCKjdkciGB8V2G+ciZkDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T03:28:30.665815Z"},"content_sha256":"c1b3b3fe91ce3f881ebb700d8d49f7de6979df6a1fd9a506202d3372919908a1","schema_version":"1.0","event_id":"sha256:c1b3b3fe91ce3f881ebb700d8d49f7de6979df6a1fd9a506202d3372919908a1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TPYKB2FFEZOI55QGKAOZX6OFFM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Phase stiffness in an antiferromagnetic superconductor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Hiroyuki Yamase, Walter Metzner","submitted_at":"2019-04-12T09:20:21Z","abstract_excerpt":"We analyze the suppression of the phase stiffness in a superconductor by antiferromagnetic order. The analysis is based on a general expression for the phase stiffness in a mean-field state with coexisting spin-singlet superconductivity and spiral magnetism. Neel order is included as a special case. Close to half-filling, where the pairing gap is much smaller than the magnetic gap, a simple formula for the phase stiffness in terms of magnetic quasi-particle bands is derived. The phase stiffness is determined by charge carriers in small electron or hole pockets in this regime. The general analy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06115","kind":"arxiv","version":2},"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":"2026-05-17T23:41:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5ngJgjN9bpD/srjOx2qgztUTok5i1Q+yVT1AXZtu27ktfWlTAgQdHvxZ7UZAS+mHCVD72f1LbJPVD7hMvYOHCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T03:28:30.666177Z"},"content_sha256":"9bc8fb0f0304390d31f95c80e61849cbe12f4c3f1c36fbed855be8a22c4a05ab","schema_version":"1.0","event_id":"sha256:9bc8fb0f0304390d31f95c80e61849cbe12f4c3f1c36fbed855be8a22c4a05ab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TPYKB2FFEZOI55QGKAOZX6OFFM/bundle.json","state_url":"https://pith.science/pith/TPYKB2FFEZOI55QGKAOZX6OFFM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TPYKB2FFEZOI55QGKAOZX6OFFM/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":"2026-06-04T03:28:30Z","links":{"resolver":"https://pith.science/pith/TPYKB2FFEZOI55QGKAOZX6OFFM","bundle":"https://pith.science/pith/TPYKB2FFEZOI55QGKAOZX6OFFM/bundle.json","state":"https://pith.science/pith/TPYKB2FFEZOI55QGKAOZX6OFFM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TPYKB2FFEZOI55QGKAOZX6OFFM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TPYKB2FFEZOI55QGKAOZX6OFFM","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":"b00e0f22e5c1780379d16e3d343a45ac577e382a17d17d960ee564bc62d94de1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-04-12T09:20:21Z","title_canon_sha256":"f54b13122be3703a005fa8b333d04d261802d8d9f11c5fcff287ee92bf5aaec4"},"schema_version":"1.0","source":{"id":"1904.06115","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.06115","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"arxiv_version","alias_value":"1904.06115v2","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.06115","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"pith_short_12","alias_value":"TPYKB2FFEZOI","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"TPYKB2FFEZOI55QG","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"TPYKB2FF","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:9bc8fb0f0304390d31f95c80e61849cbe12f4c3f1c36fbed855be8a22c4a05ab","target":"graph","created_at":"2026-05-17T23:41:09Z","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 analyze the suppression of the phase stiffness in a superconductor by antiferromagnetic order. The analysis is based on a general expression for the phase stiffness in a mean-field state with coexisting spin-singlet superconductivity and spiral magnetism. Neel order is included as a special case. Close to half-filling, where the pairing gap is much smaller than the magnetic gap, a simple formula for the phase stiffness in terms of magnetic quasi-particle bands is derived. The phase stiffness is determined by charge carriers in small electron or hole pockets in this regime. The general analy","authors_text":"Hiroyuki Yamase, Walter Metzner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-04-12T09:20:21Z","title":"Phase stiffness in an antiferromagnetic superconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06115","kind":"arxiv","version":2},"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:c1b3b3fe91ce3f881ebb700d8d49f7de6979df6a1fd9a506202d3372919908a1","target":"record","created_at":"2026-05-17T23:41:09Z","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":"b00e0f22e5c1780379d16e3d343a45ac577e382a17d17d960ee564bc62d94de1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-04-12T09:20:21Z","title_canon_sha256":"f54b13122be3703a005fa8b333d04d261802d8d9f11c5fcff287ee92bf5aaec4"},"schema_version":"1.0","source":{"id":"1904.06115","kind":"arxiv","version":2}},"canonical_sha256":"9bf0a0e8a5265c8ef606501d9bf9c52b3f67698e74f010ed6476d55ddb06b5f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9bf0a0e8a5265c8ef606501d9bf9c52b3f67698e74f010ed6476d55ddb06b5f0","first_computed_at":"2026-05-17T23:41:09.065679Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:09.065679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uUneDzaNdInmj4wFwuqDIjFqjOOudK1GqRb4AQ6N412A5zdGMMkMB8iNkL0ObHnKRryzGOfmi/YWL5ZlMTtuDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:09.066437Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.06115","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c1b3b3fe91ce3f881ebb700d8d49f7de6979df6a1fd9a506202d3372919908a1","sha256:9bc8fb0f0304390d31f95c80e61849cbe12f4c3f1c36fbed855be8a22c4a05ab"],"state_sha256":"0d230d429c13385f5114fff2df5abb63b940671b7c20b6cdd2ea24b18e4bd0d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F6sWuonWv/hE0Gm4M9tUpqZJfQLVL2HS2fdXM8VykGy3ZUHKqqbDGKRtkupMnR8mk18PRitvs4Sxb8IWNZEfDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T03:28:30.668098Z","bundle_sha256":"f196c18a118a2b8dbd8961acf7a2d1d3341697c41ae8db5f6037fcabd038d860"}}