{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:ENCCCJPPB5SR2BTUDEEAAM4YFJ","short_pith_number":"pith:ENCCCJPP","canonical_record":{"source":{"id":"0808.4120","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-29T16:03:43Z","cross_cats_sorted":[],"title_canon_sha256":"5a4d48436d98913d52b84a10b6ab5eb288de6f6632ae925b6a16c5fc00360530","abstract_canon_sha256":"bbef8a96f822cb03e8403033ecc651c578814ec579b695b03bde37593091ab89"},"schema_version":"1.0"},"canonical_sha256":"23442125ef0f651d067419080033982a7e5813cd3553380750cae73051de7189","source":{"kind":"arxiv","id":"0808.4120","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0808.4120","created_at":"2026-05-18T04:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"0808.4120v2","created_at":"2026-05-18T04:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0808.4120","created_at":"2026-05-18T04:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"ENCCCJPPB5SR","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"ENCCCJPPB5SR2BTU","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"ENCCCJPP","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:ENCCCJPPB5SR2BTUDEEAAM4YFJ","target":"record","payload":{"canonical_record":{"source":{"id":"0808.4120","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-29T16:03:43Z","cross_cats_sorted":[],"title_canon_sha256":"5a4d48436d98913d52b84a10b6ab5eb288de6f6632ae925b6a16c5fc00360530","abstract_canon_sha256":"bbef8a96f822cb03e8403033ecc651c578814ec579b695b03bde37593091ab89"},"schema_version":"1.0"},"canonical_sha256":"23442125ef0f651d067419080033982a7e5813cd3553380750cae73051de7189","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:17.845140Z","signature_b64":"hdnJzxDH/TSoNOhKjYXJg0qKWh8SPF2+VZS7Qxnk/k198v/OWk27m9Kv54LpSOEZoJ9rRTvLyuo9Y/o0HMMpCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23442125ef0f651d067419080033982a7e5813cd3553380750cae73051de7189","last_reissued_at":"2026-05-18T04:03:17.844616Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:17.844616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0808.4120","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":"2026-05-18T04:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G1uYAXZhr4B8NxnN5lV9ccGne5MoYmTPlAkvHSdmeUci8FWd9uwIJ7ngGEqnmnr1537ubODJzFI9C5WFWWmvBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:22:12.343227Z"},"content_sha256":"eae1c4d15cfa8818ff37a21b138ea7f4781255f2713d4fbdef64f827e47960d9","schema_version":"1.0","event_id":"sha256:eae1c4d15cfa8818ff37a21b138ea7f4781255f2713d4fbdef64f827e47960d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:ENCCCJPPB5SR2BTUDEEAAM4YFJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetocapacitance of a graphene monolayer","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. MacKinnon, K. Sabeeh, M. Tahir","submitted_at":"2008-08-29T16:03:43Z","abstract_excerpt":"We present a theoretical study of magnetocapacitance in a graphene monolayer at finite temperature taking into account the effects of disorder. The density of states (DOS) and magnetocapacitance found for graphene are compared to those found in standard two dimensional electron gas (2DEG) systems. The magnetic oscillations in DOS and magnetocapacitance are found to be enhanced and much more robust with respect to temperature damping in monolayer graphene in comparison with a 2DEG. Furthermore, we find that there is a $\\pi$ phase shift between magnetic oscillations in the two systems which can "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.4120","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":"2026-05-18T04:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CPGqhmBcmQ0NQ9dTNl1nLdkZg0QCL55My4MvYtAy+qvJha7Ct+Yk1YlJfwX+9StSYAGLG/RjhEaFAsxyBgS9BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T15:22:12.343724Z"},"content_sha256":"11d5903e08020c40dea3c428041c6d53c5be38335bc26a8782127741336aed53","schema_version":"1.0","event_id":"sha256:11d5903e08020c40dea3c428041c6d53c5be38335bc26a8782127741336aed53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ENCCCJPPB5SR2BTUDEEAAM4YFJ/bundle.json","state_url":"https://pith.science/pith/ENCCCJPPB5SR2BTUDEEAAM4YFJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ENCCCJPPB5SR2BTUDEEAAM4YFJ/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":"2026-05-25T15:22:12Z","links":{"resolver":"https://pith.science/pith/ENCCCJPPB5SR2BTUDEEAAM4YFJ","bundle":"https://pith.science/pith/ENCCCJPPB5SR2BTUDEEAAM4YFJ/bundle.json","state":"https://pith.science/pith/ENCCCJPPB5SR2BTUDEEAAM4YFJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ENCCCJPPB5SR2BTUDEEAAM4YFJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:ENCCCJPPB5SR2BTUDEEAAM4YFJ","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":"bbef8a96f822cb03e8403033ecc651c578814ec579b695b03bde37593091ab89","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-29T16:03:43Z","title_canon_sha256":"5a4d48436d98913d52b84a10b6ab5eb288de6f6632ae925b6a16c5fc00360530"},"schema_version":"1.0","source":{"id":"0808.4120","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0808.4120","created_at":"2026-05-18T04:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"0808.4120v2","created_at":"2026-05-18T04:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0808.4120","created_at":"2026-05-18T04:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"ENCCCJPPB5SR","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"ENCCCJPPB5SR2BTU","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"ENCCCJPP","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:11d5903e08020c40dea3c428041c6d53c5be38335bc26a8782127741336aed53","target":"graph","created_at":"2026-05-18T04:03:17Z","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 present a theoretical study of magnetocapacitance in a graphene monolayer at finite temperature taking into account the effects of disorder. The density of states (DOS) and magnetocapacitance found for graphene are compared to those found in standard two dimensional electron gas (2DEG) systems. The magnetic oscillations in DOS and magnetocapacitance are found to be enhanced and much more robust with respect to temperature damping in monolayer graphene in comparison with a 2DEG. Furthermore, we find that there is a $\\pi$ phase shift between magnetic oscillations in the two systems which can ","authors_text":"A. MacKinnon, K. Sabeeh, M. Tahir","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-29T16:03:43Z","title":"Magnetocapacitance of a graphene monolayer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.4120","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:eae1c4d15cfa8818ff37a21b138ea7f4781255f2713d4fbdef64f827e47960d9","target":"record","created_at":"2026-05-18T04:03:17Z","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":"bbef8a96f822cb03e8403033ecc651c578814ec579b695b03bde37593091ab89","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2008-08-29T16:03:43Z","title_canon_sha256":"5a4d48436d98913d52b84a10b6ab5eb288de6f6632ae925b6a16c5fc00360530"},"schema_version":"1.0","source":{"id":"0808.4120","kind":"arxiv","version":2}},"canonical_sha256":"23442125ef0f651d067419080033982a7e5813cd3553380750cae73051de7189","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23442125ef0f651d067419080033982a7e5813cd3553380750cae73051de7189","first_computed_at":"2026-05-18T04:03:17.844616Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:17.844616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hdnJzxDH/TSoNOhKjYXJg0qKWh8SPF2+VZS7Qxnk/k198v/OWk27m9Kv54LpSOEZoJ9rRTvLyuo9Y/o0HMMpCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:17.845140Z","signed_message":"canonical_sha256_bytes"},"source_id":"0808.4120","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eae1c4d15cfa8818ff37a21b138ea7f4781255f2713d4fbdef64f827e47960d9","sha256:11d5903e08020c40dea3c428041c6d53c5be38335bc26a8782127741336aed53"],"state_sha256":"d12fa0cf891e15827d0e8b246177f5dc491de695a0a5bf630e8b02e385b62fd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G5Mgs9/ABdlRANdvoV67Ae6wVgiS49sgGrMUnognRcCeX3ur8X1h2e+4V3UTd6Ch9FW1oKTjGOEUTNB9i0MmBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T15:22:12.346347Z","bundle_sha256":"8550d9bfc0b2821aac1f40e51063504a9fe85196f9eb4f159c2e23a356d2d36b"}}