{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:UFGDZE5T25MY4VUNGYJKKJGG23","short_pith_number":"pith:UFGDZE5T","canonical_record":{"source":{"id":"1306.4154","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-06-18T11:43:54Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"deca614844ed010ee04f2d92cd6cd7c7085638702ce6f7214104f46a1bf3017b","abstract_canon_sha256":"6d753c72c7e343399d5ae948f48bbebb65dbabf5d4179d1f61c3db631fb41f0e"},"schema_version":"1.0"},"canonical_sha256":"a14c3c93b3d7598e568d3612a524c6d6c7707073a5cffa7538575630692ccad5","source":{"kind":"arxiv","id":"1306.4154","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4154","created_at":"2026-05-18T01:49:15Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4154v1","created_at":"2026-05-18T01:49:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4154","created_at":"2026-05-18T01:49:15Z"},{"alias_kind":"pith_short_12","alias_value":"UFGDZE5T25MY","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UFGDZE5T25MY4VUN","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UFGDZE5T","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:UFGDZE5T25MY4VUNGYJKKJGG23","target":"record","payload":{"canonical_record":{"source":{"id":"1306.4154","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-06-18T11:43:54Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"deca614844ed010ee04f2d92cd6cd7c7085638702ce6f7214104f46a1bf3017b","abstract_canon_sha256":"6d753c72c7e343399d5ae948f48bbebb65dbabf5d4179d1f61c3db631fb41f0e"},"schema_version":"1.0"},"canonical_sha256":"a14c3c93b3d7598e568d3612a524c6d6c7707073a5cffa7538575630692ccad5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:15.706601Z","signature_b64":"q322pSzUVOzNw9nrzl6tfJqV9Y8nJqJSM0+zWhxuaWpSUdCT0+5TZB77wL9kE6K/HiTRs9qn2gc8PgKBkha2DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a14c3c93b3d7598e568d3612a524c6d6c7707073a5cffa7538575630692ccad5","last_reissued_at":"2026-05-18T01:49:15.706056Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:15.706056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.4154","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":"2026-05-18T01:49:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WM8eUcR0E2aHkFkf28NHcPxNSJj2kaBwYmp0za1CMSs2u4UHPUfsRBz8yNyT2/E0iROfHTNCwtOVdL88+Ro6Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:49:44.422456Z"},"content_sha256":"55196f9db81411e7051155db037d6e1636aedb17cbdc291ccd528c009a04030f","schema_version":"1.0","event_id":"sha256:55196f9db81411e7051155db037d6e1636aedb17cbdc291ccd528c009a04030f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:UFGDZE5T25MY4VUNGYJKKJGG23","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The spin-polarized $\\nu=0$ state of graphene: a spin superconductor","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.supr-con","authors_text":"Qing-Feng Sun, X. C. Xie","submitted_at":"2013-06-18T11:43:54Z","abstract_excerpt":"We study the spin-polarized $\\nu=0$ Landau-level state of graphene. Due to the electron-hole attractive interaction, electrons and holes can bound into pairs. These pairs can then condense into a spin-triplet superfluid ground state: a spin superconductor state. In this state, a gap opens up in the edge bands as well as in the bulk bands, thus it is a charge insulator, but it can carry the spin current without dissipation. These results can well explain the insulating behavior of the spin-polarized $\\nu=0$ state in the recent experiments."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4154","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":"2026-05-18T01:49:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5/rW3RjTV784+v1WiV61u/PCgdci7t5KMihmsYYfPLTv5LDbzzKGN/9E7XldUXWNULMdp72DXDnoGQK6cXx2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:49:44.423049Z"},"content_sha256":"0254243c327b560d0ce83d5fb2864e53cf5d4cdc18420050b1408b14c5b6541e","schema_version":"1.0","event_id":"sha256:0254243c327b560d0ce83d5fb2864e53cf5d4cdc18420050b1408b14c5b6541e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UFGDZE5T25MY4VUNGYJKKJGG23/bundle.json","state_url":"https://pith.science/pith/UFGDZE5T25MY4VUNGYJKKJGG23/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UFGDZE5T25MY4VUNGYJKKJGG23/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":"2026-06-05T01:49:44Z","links":{"resolver":"https://pith.science/pith/UFGDZE5T25MY4VUNGYJKKJGG23","bundle":"https://pith.science/pith/UFGDZE5T25MY4VUNGYJKKJGG23/bundle.json","state":"https://pith.science/pith/UFGDZE5T25MY4VUNGYJKKJGG23/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UFGDZE5T25MY4VUNGYJKKJGG23/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:UFGDZE5T25MY4VUNGYJKKJGG23","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":"6d753c72c7e343399d5ae948f48bbebb65dbabf5d4179d1f61c3db631fb41f0e","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-06-18T11:43:54Z","title_canon_sha256":"deca614844ed010ee04f2d92cd6cd7c7085638702ce6f7214104f46a1bf3017b"},"schema_version":"1.0","source":{"id":"1306.4154","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4154","created_at":"2026-05-18T01:49:15Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4154v1","created_at":"2026-05-18T01:49:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4154","created_at":"2026-05-18T01:49:15Z"},{"alias_kind":"pith_short_12","alias_value":"UFGDZE5T25MY","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"UFGDZE5T25MY4VUN","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"UFGDZE5T","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:0254243c327b560d0ce83d5fb2864e53cf5d4cdc18420050b1408b14c5b6541e","target":"graph","created_at":"2026-05-18T01:49:15Z","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 spin-polarized $\\nu=0$ Landau-level state of graphene. Due to the electron-hole attractive interaction, electrons and holes can bound into pairs. These pairs can then condense into a spin-triplet superfluid ground state: a spin superconductor state. In this state, a gap opens up in the edge bands as well as in the bulk bands, thus it is a charge insulator, but it can carry the spin current without dissipation. These results can well explain the insulating behavior of the spin-polarized $\\nu=0$ state in the recent experiments.","authors_text":"Qing-Feng Sun, X. C. Xie","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-06-18T11:43:54Z","title":"The spin-polarized $\\nu=0$ state of graphene: a spin superconductor"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4154","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":"sha256:55196f9db81411e7051155db037d6e1636aedb17cbdc291ccd528c009a04030f","target":"record","created_at":"2026-05-18T01:49:15Z","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":"6d753c72c7e343399d5ae948f48bbebb65dbabf5d4179d1f61c3db631fb41f0e","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-06-18T11:43:54Z","title_canon_sha256":"deca614844ed010ee04f2d92cd6cd7c7085638702ce6f7214104f46a1bf3017b"},"schema_version":"1.0","source":{"id":"1306.4154","kind":"arxiv","version":1}},"canonical_sha256":"a14c3c93b3d7598e568d3612a524c6d6c7707073a5cffa7538575630692ccad5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a14c3c93b3d7598e568d3612a524c6d6c7707073a5cffa7538575630692ccad5","first_computed_at":"2026-05-18T01:49:15.706056Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:15.706056Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q322pSzUVOzNw9nrzl6tfJqV9Y8nJqJSM0+zWhxuaWpSUdCT0+5TZB77wL9kE6K/HiTRs9qn2gc8PgKBkha2DA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:15.706601Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.4154","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55196f9db81411e7051155db037d6e1636aedb17cbdc291ccd528c009a04030f","sha256:0254243c327b560d0ce83d5fb2864e53cf5d4cdc18420050b1408b14c5b6541e"],"state_sha256":"e197eef998113353eb63be9b2b59acb02ee7945be32ae27d420565f8b909b3fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lJxwjMzLxJDlNItQDBtR5IgCl6KynWe9G1wLHK7JBnIQx1vj8gk4yX3PnwXAYUIx75wV37Z9mRFuPHsH/OtICA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:49:44.426198Z","bundle_sha256":"490d3136b74a654f525888986944ee60ff39fb14fd2e31cd086a799f5a591c05"}}