{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:P7HMYLP4X3XPFUWVJCQUXOECXB","short_pith_number":"pith:P7HMYLP4","canonical_record":{"source":{"id":"1208.0522","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-02T15:49:52Z","cross_cats_sorted":[],"title_canon_sha256":"df80ffe8fddf54a316d53110fe0504515a3be6b1d3f31cefe17d91a63136f405","abstract_canon_sha256":"2e1830d1f4f378c18c635659b4c0a8ff94d55a6e1bda9e9616980544752c8218"},"schema_version":"1.0"},"canonical_sha256":"7fcecc2dfcbeeef2d2d548a14bb882b86aaca6b4f49fa5ae6fd9ddbcd98620ed","source":{"kind":"arxiv","id":"1208.0522","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.0522","created_at":"2026-05-18T02:59:30Z"},{"alias_kind":"arxiv_version","alias_value":"1208.0522v1","created_at":"2026-05-18T02:59:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.0522","created_at":"2026-05-18T02:59:30Z"},{"alias_kind":"pith_short_12","alias_value":"P7HMYLP4X3XP","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"P7HMYLP4X3XPFUWV","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"P7HMYLP4","created_at":"2026-05-18T12:27:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:P7HMYLP4X3XPFUWVJCQUXOECXB","target":"record","payload":{"canonical_record":{"source":{"id":"1208.0522","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-02T15:49:52Z","cross_cats_sorted":[],"title_canon_sha256":"df80ffe8fddf54a316d53110fe0504515a3be6b1d3f31cefe17d91a63136f405","abstract_canon_sha256":"2e1830d1f4f378c18c635659b4c0a8ff94d55a6e1bda9e9616980544752c8218"},"schema_version":"1.0"},"canonical_sha256":"7fcecc2dfcbeeef2d2d548a14bb882b86aaca6b4f49fa5ae6fd9ddbcd98620ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:59:30.713682Z","signature_b64":"Op+cArBVW5EbZ58uDSuswupdwKYPdhB5vSxVo2oirmJTWWjPBkS9V7xs9SCTthBNZr5/L399T1zLNSf0LNssCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fcecc2dfcbeeef2d2d548a14bb882b86aaca6b4f49fa5ae6fd9ddbcd98620ed","last_reissued_at":"2026-05-18T02:59:30.713156Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:59:30.713156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.0522","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":"2026-05-18T02:59:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0rIK1bpyQlXHGAWbrsHa2IKg+21QP9MhDc5ja8ohUWCyvU4+1Q9Oy8LCcnyNzp4WC2Pu3sbvqww7oCMr/sdJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:46:18.723039Z"},"content_sha256":"f04b61321e0ddedc4b43906f566d3b072b759004e0390e3cd2dbdabdf1996875","schema_version":"1.0","event_id":"sha256:f04b61321e0ddedc4b43906f566d3b072b759004e0390e3cd2dbdabdf1996875"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:P7HMYLP4X3XPFUWVJCQUXOECXB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interaction-induced enhancement of $g$-factor in graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. A. Shylau, A. V. Volkov, I. V. Zozoulenko","submitted_at":"2012-08-02T15:49:52Z","abstract_excerpt":"We study the effect of electron interaction on the spin-splitting and the $g$-factor in graphene in perpendicular magnetic field using the Hartree and Hubbard approximations within the Thomas-Fermi model. We found that the $g$-factor is enhanced in comparison to its free electron value $g=2$ and oscillates as a function of the filling factor $\\nu $ in the range $2\\leq g^{\\ast}\\lesssim 4$ reaching maxima at even $\\nu $ and minima at odd $\\nu $. We outline the role of charged impurities in the substrate, which are shown to suppress the oscillations of the $g^{\\ast}$-factor. This effect becomes e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.0522","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":"2026-05-18T02:59:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z9b0NzWSSzEcRc1uc8U/Qik9WzrHRU11ks5XCnkjUYGCFSuhBbjd+1wF4EHALqVhpviiNxCOFs2O9mIhCNnGBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:46:18.723696Z"},"content_sha256":"2ad75d8859b0267864184ef3b3d0b5e823399c0e9a3262b65244242e7bbf6ec8","schema_version":"1.0","event_id":"sha256:2ad75d8859b0267864184ef3b3d0b5e823399c0e9a3262b65244242e7bbf6ec8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P7HMYLP4X3XPFUWVJCQUXOECXB/bundle.json","state_url":"https://pith.science/pith/P7HMYLP4X3XPFUWVJCQUXOECXB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P7HMYLP4X3XPFUWVJCQUXOECXB/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":"2026-05-27T13:46:18Z","links":{"resolver":"https://pith.science/pith/P7HMYLP4X3XPFUWVJCQUXOECXB","bundle":"https://pith.science/pith/P7HMYLP4X3XPFUWVJCQUXOECXB/bundle.json","state":"https://pith.science/pith/P7HMYLP4X3XPFUWVJCQUXOECXB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P7HMYLP4X3XPFUWVJCQUXOECXB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:P7HMYLP4X3XPFUWVJCQUXOECXB","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":"2e1830d1f4f378c18c635659b4c0a8ff94d55a6e1bda9e9616980544752c8218","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-02T15:49:52Z","title_canon_sha256":"df80ffe8fddf54a316d53110fe0504515a3be6b1d3f31cefe17d91a63136f405"},"schema_version":"1.0","source":{"id":"1208.0522","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.0522","created_at":"2026-05-18T02:59:30Z"},{"alias_kind":"arxiv_version","alias_value":"1208.0522v1","created_at":"2026-05-18T02:59:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.0522","created_at":"2026-05-18T02:59:30Z"},{"alias_kind":"pith_short_12","alias_value":"P7HMYLP4X3XP","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"P7HMYLP4X3XPFUWV","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"P7HMYLP4","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:2ad75d8859b0267864184ef3b3d0b5e823399c0e9a3262b65244242e7bbf6ec8","target":"graph","created_at":"2026-05-18T02:59:30Z","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 effect of electron interaction on the spin-splitting and the $g$-factor in graphene in perpendicular magnetic field using the Hartree and Hubbard approximations within the Thomas-Fermi model. We found that the $g$-factor is enhanced in comparison to its free electron value $g=2$ and oscillates as a function of the filling factor $\\nu $ in the range $2\\leq g^{\\ast}\\lesssim 4$ reaching maxima at even $\\nu $ and minima at odd $\\nu $. We outline the role of charged impurities in the substrate, which are shown to suppress the oscillations of the $g^{\\ast}$-factor. This effect becomes e","authors_text":"A. A. Shylau, A. V. Volkov, I. V. Zozoulenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-02T15:49:52Z","title":"Interaction-induced enhancement of $g$-factor in graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.0522","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:f04b61321e0ddedc4b43906f566d3b072b759004e0390e3cd2dbdabdf1996875","target":"record","created_at":"2026-05-18T02:59:30Z","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":"2e1830d1f4f378c18c635659b4c0a8ff94d55a6e1bda9e9616980544752c8218","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-08-02T15:49:52Z","title_canon_sha256":"df80ffe8fddf54a316d53110fe0504515a3be6b1d3f31cefe17d91a63136f405"},"schema_version":"1.0","source":{"id":"1208.0522","kind":"arxiv","version":1}},"canonical_sha256":"7fcecc2dfcbeeef2d2d548a14bb882b86aaca6b4f49fa5ae6fd9ddbcd98620ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fcecc2dfcbeeef2d2d548a14bb882b86aaca6b4f49fa5ae6fd9ddbcd98620ed","first_computed_at":"2026-05-18T02:59:30.713156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:59:30.713156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Op+cArBVW5EbZ58uDSuswupdwKYPdhB5vSxVo2oirmJTWWjPBkS9V7xs9SCTthBNZr5/L399T1zLNSf0LNssCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:59:30.713682Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.0522","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f04b61321e0ddedc4b43906f566d3b072b759004e0390e3cd2dbdabdf1996875","sha256:2ad75d8859b0267864184ef3b3d0b5e823399c0e9a3262b65244242e7bbf6ec8"],"state_sha256":"02843e6c07516c13839084cc5dad79b4e20b51f8182650a62995cbbc55a711c4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bxIYEUczbzOExLrLS38uuT6O6cm1CN5xef4e+bt2nccqWtN83d3avQqkAtsfTF2Br9UYgur8AANSaWVHdlo8Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T13:46:18.726669Z","bundle_sha256":"9c592545c14f46aea69dc58da853a975c56b68b0eaae381d711cd58535363192"}}