{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:REWRBKTBDU7EOQW3AYP23IG7JW","short_pith_number":"pith:REWRBKTB","canonical_record":{"source":{"id":"cond-mat/9809260","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1998-09-21T01:38:11Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"78d4d0aef5e86f6c4b221344b6d05d891edc4e161f2f48bfbff905d9c6165ebf","abstract_canon_sha256":"a174b706e71606fdc52c6440a151bf651cde9b8ee577ec6a5f9c388969b77973"},"schema_version":"1.0"},"canonical_sha256":"892d10aa611d3e4742db061fada0df4dbc69434aca5100b943f1ed2d58c0146a","source":{"kind":"arxiv","id":"cond-mat/9809260","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9809260","created_at":"2026-05-18T01:07:06Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9809260v2","created_at":"2026-05-18T01:07:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9809260","created_at":"2026-05-18T01:07:06Z"},{"alias_kind":"pith_short_12","alias_value":"REWRBKTBDU7E","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"REWRBKTBDU7EOQW3","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"REWRBKTB","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:REWRBKTBDU7EOQW3AYP23IG7JW","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9809260","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1998-09-21T01:38:11Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"78d4d0aef5e86f6c4b221344b6d05d891edc4e161f2f48bfbff905d9c6165ebf","abstract_canon_sha256":"a174b706e71606fdc52c6440a151bf651cde9b8ee577ec6a5f9c388969b77973"},"schema_version":"1.0"},"canonical_sha256":"892d10aa611d3e4742db061fada0df4dbc69434aca5100b943f1ed2d58c0146a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:06.954243Z","signature_b64":"gqj8LJq0BtsyjmdWkIb46A9aFAdSqH1Rt7KSlG02hAtR7ML1jT8ApFdw0GEPEqKGV0PAUcpnXmuYa9trbS0cDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"892d10aa611d3e4742db061fada0df4dbc69434aca5100b943f1ed2d58c0146a","last_reissued_at":"2026-05-18T01:07:06.953786Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:06.953786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9809260","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":"2026-05-18T01:07:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VDiFiFCxfQOftWDmUpaEAlVwu9XQZWoOV/P++D0Kf1Q7qvEY/qXMlp22yiQVFgVl5X5+cIjGuLZIAru0qSVTDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T16:43:42.968090Z"},"content_sha256":"0b00361f4d6077725afc2844012c384f82223fa58506e0df3b52a26317a5ab0b","schema_version":"1.0","event_id":"sha256:0b00361f4d6077725afc2844012c384f82223fa58506e0df3b52a26317a5ab0b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:REWRBKTBDU7EOQW3AYP23IG7JW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electronic and Magnetic Properties of Nanographite Ribbons","license":"","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hiroshi Ajiki, Katsunori Wakabayashi, Manfred Sigrist, Mitsutaka Fujita","submitted_at":"1998-09-21T01:38:11Z","abstract_excerpt":"Electronic and magnetic properties of ribbon-shaped nanographite systems with zigzag and armchair edges in a magnetic field are investigated by using a tight binding model. One of the most remarkable features of these systems is the appearance of edge states, strongly localized near zigzag edges. The edge state in magnetic field, generating a rational fraction of the magnetic flux (\\phi= p/q) in each hexagonal plaquette of the graphite plane, behaves like a zero-field edge state with q internal degrees of freedom. The orbital diamagnetic susceptibility strongly depends on the edge shapes. The "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9809260","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":"2026-05-18T01:07:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZuHBv2vVveThOZYTx3sQOAusC3c5gwX6Z8tVflAtW5+QljYCm2r1KQZOgZ/x05DzT0tWNBLo8gGEBAV5wByvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T16:43:42.968779Z"},"content_sha256":"e3225527592dc59ee1d256ffc8d6e506d61b713c896bb081421bf9a70c212e2f","schema_version":"1.0","event_id":"sha256:e3225527592dc59ee1d256ffc8d6e506d61b713c896bb081421bf9a70c212e2f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/REWRBKTBDU7EOQW3AYP23IG7JW/bundle.json","state_url":"https://pith.science/pith/REWRBKTBDU7EOQW3AYP23IG7JW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/REWRBKTBDU7EOQW3AYP23IG7JW/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":"2026-06-08T16:43:42Z","links":{"resolver":"https://pith.science/pith/REWRBKTBDU7EOQW3AYP23IG7JW","bundle":"https://pith.science/pith/REWRBKTBDU7EOQW3AYP23IG7JW/bundle.json","state":"https://pith.science/pith/REWRBKTBDU7EOQW3AYP23IG7JW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/REWRBKTBDU7EOQW3AYP23IG7JW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:REWRBKTBDU7EOQW3AYP23IG7JW","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":"a174b706e71606fdc52c6440a151bf651cde9b8ee577ec6a5f9c388969b77973","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1998-09-21T01:38:11Z","title_canon_sha256":"78d4d0aef5e86f6c4b221344b6d05d891edc4e161f2f48bfbff905d9c6165ebf"},"schema_version":"1.0","source":{"id":"cond-mat/9809260","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9809260","created_at":"2026-05-18T01:07:06Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9809260v2","created_at":"2026-05-18T01:07:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9809260","created_at":"2026-05-18T01:07:06Z"},{"alias_kind":"pith_short_12","alias_value":"REWRBKTBDU7E","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"REWRBKTBDU7EOQW3","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"REWRBKTB","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:e3225527592dc59ee1d256ffc8d6e506d61b713c896bb081421bf9a70c212e2f","target":"graph","created_at":"2026-05-18T01:07:06Z","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":"Electronic and magnetic properties of ribbon-shaped nanographite systems with zigzag and armchair edges in a magnetic field are investigated by using a tight binding model. One of the most remarkable features of these systems is the appearance of edge states, strongly localized near zigzag edges. The edge state in magnetic field, generating a rational fraction of the magnetic flux (\\phi= p/q) in each hexagonal plaquette of the graphite plane, behaves like a zero-field edge state with q internal degrees of freedom. The orbital diamagnetic susceptibility strongly depends on the edge shapes. The ","authors_text":"Hiroshi Ajiki, Katsunori Wakabayashi, Manfred Sigrist, Mitsutaka Fujita","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1998-09-21T01:38:11Z","title":"Electronic and Magnetic Properties of Nanographite Ribbons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9809260","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":"sha256:0b00361f4d6077725afc2844012c384f82223fa58506e0df3b52a26317a5ab0b","target":"record","created_at":"2026-05-18T01:07:06Z","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":"a174b706e71606fdc52c6440a151bf651cde9b8ee577ec6a5f9c388969b77973","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"1998-09-21T01:38:11Z","title_canon_sha256":"78d4d0aef5e86f6c4b221344b6d05d891edc4e161f2f48bfbff905d9c6165ebf"},"schema_version":"1.0","source":{"id":"cond-mat/9809260","kind":"arxiv","version":2}},"canonical_sha256":"892d10aa611d3e4742db061fada0df4dbc69434aca5100b943f1ed2d58c0146a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"892d10aa611d3e4742db061fada0df4dbc69434aca5100b943f1ed2d58c0146a","first_computed_at":"2026-05-18T01:07:06.953786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:06.953786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gqj8LJq0BtsyjmdWkIb46A9aFAdSqH1Rt7KSlG02hAtR7ML1jT8ApFdw0GEPEqKGV0PAUcpnXmuYa9trbS0cDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:06.954243Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9809260","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b00361f4d6077725afc2844012c384f82223fa58506e0df3b52a26317a5ab0b","sha256:e3225527592dc59ee1d256ffc8d6e506d61b713c896bb081421bf9a70c212e2f"],"state_sha256":"c1462f8d0e434faf76685bb6e1b2a768d3849894f20198aecaad4da617dd09e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ztfwfuFu4G+rMGm7cC8T4cDi8eCFJg2bkYKEsBm1dAMgCDYnvAF8CfMM1cPFRAop96UAnpuEmmzKOKh/fhK9Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T16:43:42.972778Z","bundle_sha256":"8d909b6689a90ea3b916877b3738e43d6fcda78fd3298ce1c56e173c7112cc57"}}