{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:5Z4MAG6LADGF52WVINJNVM7YTQ","short_pith_number":"pith:5Z4MAG6L","canonical_record":{"source":{"id":"1406.6541","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-06-25T12:32:59Z","cross_cats_sorted":[],"title_canon_sha256":"2791e03dad1026631e32cad1e54fe42f6dd295408dffe7b8751f4097b5c49340","abstract_canon_sha256":"b33c643143cd9c823933693585baa481b0e95872fc04f37db49dc7f39c8d549f"},"schema_version":"1.0"},"canonical_sha256":"ee78c01bcb00cc5eead54352dab3f89c1dda3c404d7d89a51f90b1860ba09d7b","source":{"kind":"arxiv","id":"1406.6541","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.6541","created_at":"2026-05-18T02:41:16Z"},{"alias_kind":"arxiv_version","alias_value":"1406.6541v2","created_at":"2026-05-18T02:41:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.6541","created_at":"2026-05-18T02:41:16Z"},{"alias_kind":"pith_short_12","alias_value":"5Z4MAG6LADGF","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"5Z4MAG6LADGF52WV","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"5Z4MAG6L","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:5Z4MAG6LADGF52WVINJNVM7YTQ","target":"record","payload":{"canonical_record":{"source":{"id":"1406.6541","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-06-25T12:32:59Z","cross_cats_sorted":[],"title_canon_sha256":"2791e03dad1026631e32cad1e54fe42f6dd295408dffe7b8751f4097b5c49340","abstract_canon_sha256":"b33c643143cd9c823933693585baa481b0e95872fc04f37db49dc7f39c8d549f"},"schema_version":"1.0"},"canonical_sha256":"ee78c01bcb00cc5eead54352dab3f89c1dda3c404d7d89a51f90b1860ba09d7b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:41:16.788277Z","signature_b64":"4JTD99JfB4bARN+3fozOPn9bhjdww+Yh7WEouBkKsrEtkeWeUZOF0k53SJEYl/IML6PG6cBTrLfz243fNi6aDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee78c01bcb00cc5eead54352dab3f89c1dda3c404d7d89a51f90b1860ba09d7b","last_reissued_at":"2026-05-18T02:41:16.787798Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:41:16.787798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.6541","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":"2026-05-18T02:41:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IaWrySJHhdKaR4KPU2+zPfMn2ItW1cDnB2pKkDL4KpHNqZDJPv9esB34FJD/zWg/Or7p+pEgY0XzylbCppmtAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:19:13.590395Z"},"content_sha256":"e94dfc4163b130a657d9ee6b02d5b3ab00053b8966c708a371c5ce36339ea578","schema_version":"1.0","event_id":"sha256:e94dfc4163b130a657d9ee6b02d5b3ab00053b8966c708a371c5ce36339ea578"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:5Z4MAG6LADGF52WVINJNVM7YTQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing electronic excitations in mono- to pentalayer graphene by micro-magneto-Raman spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Cl\\'ement Faugeras, Marek Potemski, St\\'ephane Berciaud","submitted_at":"2014-06-25T12:32:59Z","abstract_excerpt":"We probe electronic excitations between Landau levels in freestanding $N-$layer graphene over a broad energy range, with unprecedented spectral and spatial resolution, using micro-magneto Raman scattering spectroscopy. A characteristic evolution of electronic bands in up to five Bernal-stacked graphene layers is evidenced and shown to remarkably follow a simple theoretical approach, based on an effective bilayer model. $(N>3)$-layer graphene appear as appealing candidates in the quest for novel phenomena, particularly in the quantum Hall effect regime. Our work paves the way towards minimally-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6541","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":"2026-05-18T02:41:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EuUjYocQP1WSnYGhG3PZrPN+aaalTaYJQiSyE2YLNMLjEyFIefPICSQ+2MSJgGToNzGJahHu1sjSDlACIJpNBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:19:13.591051Z"},"content_sha256":"30fba4114f35499cae6e4bc15af4eddb4d0adafc6df37dbae363feee29beac98","schema_version":"1.0","event_id":"sha256:30fba4114f35499cae6e4bc15af4eddb4d0adafc6df37dbae363feee29beac98"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5Z4MAG6LADGF52WVINJNVM7YTQ/bundle.json","state_url":"https://pith.science/pith/5Z4MAG6LADGF52WVINJNVM7YTQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5Z4MAG6LADGF52WVINJNVM7YTQ/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":"2026-06-01T00:19:13Z","links":{"resolver":"https://pith.science/pith/5Z4MAG6LADGF52WVINJNVM7YTQ","bundle":"https://pith.science/pith/5Z4MAG6LADGF52WVINJNVM7YTQ/bundle.json","state":"https://pith.science/pith/5Z4MAG6LADGF52WVINJNVM7YTQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5Z4MAG6LADGF52WVINJNVM7YTQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:5Z4MAG6LADGF52WVINJNVM7YTQ","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":"b33c643143cd9c823933693585baa481b0e95872fc04f37db49dc7f39c8d549f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-06-25T12:32:59Z","title_canon_sha256":"2791e03dad1026631e32cad1e54fe42f6dd295408dffe7b8751f4097b5c49340"},"schema_version":"1.0","source":{"id":"1406.6541","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.6541","created_at":"2026-05-18T02:41:16Z"},{"alias_kind":"arxiv_version","alias_value":"1406.6541v2","created_at":"2026-05-18T02:41:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.6541","created_at":"2026-05-18T02:41:16Z"},{"alias_kind":"pith_short_12","alias_value":"5Z4MAG6LADGF","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"5Z4MAG6LADGF52WV","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"5Z4MAG6L","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:30fba4114f35499cae6e4bc15af4eddb4d0adafc6df37dbae363feee29beac98","target":"graph","created_at":"2026-05-18T02:41:16Z","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 probe electronic excitations between Landau levels in freestanding $N-$layer graphene over a broad energy range, with unprecedented spectral and spatial resolution, using micro-magneto Raman scattering spectroscopy. A characteristic evolution of electronic bands in up to five Bernal-stacked graphene layers is evidenced and shown to remarkably follow a simple theoretical approach, based on an effective bilayer model. $(N>3)$-layer graphene appear as appealing candidates in the quest for novel phenomena, particularly in the quantum Hall effect regime. Our work paves the way towards minimally-","authors_text":"Cl\\'ement Faugeras, Marek Potemski, St\\'ephane Berciaud","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-06-25T12:32:59Z","title":"Probing electronic excitations in mono- to pentalayer graphene by micro-magneto-Raman spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6541","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:e94dfc4163b130a657d9ee6b02d5b3ab00053b8966c708a371c5ce36339ea578","target":"record","created_at":"2026-05-18T02:41:16Z","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":"b33c643143cd9c823933693585baa481b0e95872fc04f37db49dc7f39c8d549f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-06-25T12:32:59Z","title_canon_sha256":"2791e03dad1026631e32cad1e54fe42f6dd295408dffe7b8751f4097b5c49340"},"schema_version":"1.0","source":{"id":"1406.6541","kind":"arxiv","version":2}},"canonical_sha256":"ee78c01bcb00cc5eead54352dab3f89c1dda3c404d7d89a51f90b1860ba09d7b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ee78c01bcb00cc5eead54352dab3f89c1dda3c404d7d89a51f90b1860ba09d7b","first_computed_at":"2026-05-18T02:41:16.787798Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:41:16.787798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4JTD99JfB4bARN+3fozOPn9bhjdww+Yh7WEouBkKsrEtkeWeUZOF0k53SJEYl/IML6PG6cBTrLfz243fNi6aDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:41:16.788277Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.6541","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e94dfc4163b130a657d9ee6b02d5b3ab00053b8966c708a371c5ce36339ea578","sha256:30fba4114f35499cae6e4bc15af4eddb4d0adafc6df37dbae363feee29beac98"],"state_sha256":"66a9ebc93aa30c988bb5849736c9db54c7cee40c0dcfe4ca7de0a2bbd1c144ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AAM8gbEk0sJ9ulq1AXHeDe/sEcpyhMq4P3/9IQ4kYpYxVPjse2tZXh2u4k/EqSsGQX91u8+uVRdk7hggBqL5BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T00:19:13.594674Z","bundle_sha256":"f57dc2969d2d591685599be3e5ef56ab77e840ff8ad5f9b44d355eacbe17a558"}}