{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:MWSDYZU7IVJNJQ6YUU6G5CTNQV","short_pith_number":"pith:MWSDYZU7","canonical_record":{"source":{"id":"1006.1085","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-06-06T05:38:11Z","cross_cats_sorted":[],"title_canon_sha256":"046756a1728d73d0dfdb59de253306daaf531f4b962a02b2d3cb2e4025cd1e45","abstract_canon_sha256":"f965e75a704f8f7d0b130acc3bf37a49c17937cd696eae7d34cf34eb3619d06c"},"schema_version":"1.0"},"canonical_sha256":"65a43c669f4552d4c3d8a53c6e8a6d8549326fd1b62ca0d3a4fa86e400637ee5","source":{"kind":"arxiv","id":"1006.1085","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1085","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1085v1","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1085","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"pith_short_12","alias_value":"MWSDYZU7IVJN","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"MWSDYZU7IVJNJQ6Y","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"MWSDYZU7","created_at":"2026-05-18T12:26:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:MWSDYZU7IVJNJQ6YUU6G5CTNQV","target":"record","payload":{"canonical_record":{"source":{"id":"1006.1085","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-06-06T05:38:11Z","cross_cats_sorted":[],"title_canon_sha256":"046756a1728d73d0dfdb59de253306daaf531f4b962a02b2d3cb2e4025cd1e45","abstract_canon_sha256":"f965e75a704f8f7d0b130acc3bf37a49c17937cd696eae7d34cf34eb3619d06c"},"schema_version":"1.0"},"canonical_sha256":"65a43c669f4552d4c3d8a53c6e8a6d8549326fd1b62ca0d3a4fa86e400637ee5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:38:15.378306Z","signature_b64":"eZIcSMfBtJtNCemE4BFCgTACNaid3rgJDFboFEC/zzo7vVlf+MfTYMS9dO5PikdWPSR5ROuVvi0iZFUGiWqUAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"65a43c669f4552d4c3d8a53c6e8a6d8549326fd1b62ca0d3a4fa86e400637ee5","last_reissued_at":"2026-05-18T04:38:15.377480Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:38:15.377480Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1006.1085","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":"2026-05-18T04:38:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PJMv9dmPY189xjiFQF0h1lNPUl6FtUhWW5DboargU/Qp86RsbHOeoWUYOjiHUTJZT3BpV4gG+pqX6Opew/IBAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:01:32.787149Z"},"content_sha256":"51164f42920e53f5aae2aa67fae87fc2a5d894aa746181df43b440cf7bdc46f1","schema_version":"1.0","event_id":"sha256:51164f42920e53f5aae2aa67fae87fc2a5d894aa746181df43b440cf7bdc46f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:MWSDYZU7IVJNJQ6YUU6G5CTNQV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High magnetic field induced charge density waves and sign reversal of the Hall coefficient in graphite","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Amit Kumar, Bertrand Raquet, Jean Claude Pivin, Jean-Marie Poumirol, Michel Goiran, Walter Escoffier","submitted_at":"2010-06-06T05:38:11Z","abstract_excerpt":"We report on the investigation of magnetic field induced charge density wave and Hall coefficient sign reversal in a quasi-two dimensional electronic system of highly oriented pyrolytic graphite under very strong magnetic field. The change of Hall sign coefficient from negative to positive occurs at low temperature and high magnetic field just after the charge density wave transition, suggesting the role of hole-like quasi-particles in this effect. Angular dependent measurements show that the charge density wave transition and Hall sign reversal fields follow the magnetic field component along"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1085","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":"2026-05-18T04:38:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ta/KNSza30UyiMCPNmgNSvtuSQMzvAdGpn1F5Psu5zk28pVUQswptSRwMAr9jXi/zgBf1Z4992iyWRDfustFBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T19:01:32.787508Z"},"content_sha256":"6318b94e6a3c681c75212ecbd56456ec5048c5f1790aa3cc2768d65b8405dcae","schema_version":"1.0","event_id":"sha256:6318b94e6a3c681c75212ecbd56456ec5048c5f1790aa3cc2768d65b8405dcae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MWSDYZU7IVJNJQ6YUU6G5CTNQV/bundle.json","state_url":"https://pith.science/pith/MWSDYZU7IVJNJQ6YUU6G5CTNQV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MWSDYZU7IVJNJQ6YUU6G5CTNQV/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":"2026-06-02T19:01:32Z","links":{"resolver":"https://pith.science/pith/MWSDYZU7IVJNJQ6YUU6G5CTNQV","bundle":"https://pith.science/pith/MWSDYZU7IVJNJQ6YUU6G5CTNQV/bundle.json","state":"https://pith.science/pith/MWSDYZU7IVJNJQ6YUU6G5CTNQV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MWSDYZU7IVJNJQ6YUU6G5CTNQV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:MWSDYZU7IVJNJQ6YUU6G5CTNQV","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":"f965e75a704f8f7d0b130acc3bf37a49c17937cd696eae7d34cf34eb3619d06c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-06-06T05:38:11Z","title_canon_sha256":"046756a1728d73d0dfdb59de253306daaf531f4b962a02b2d3cb2e4025cd1e45"},"schema_version":"1.0","source":{"id":"1006.1085","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1006.1085","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"arxiv_version","alias_value":"1006.1085v1","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1006.1085","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"pith_short_12","alias_value":"MWSDYZU7IVJN","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"MWSDYZU7IVJNJQ6Y","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"MWSDYZU7","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:6318b94e6a3c681c75212ecbd56456ec5048c5f1790aa3cc2768d65b8405dcae","target":"graph","created_at":"2026-05-18T04:38:15Z","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 report on the investigation of magnetic field induced charge density wave and Hall coefficient sign reversal in a quasi-two dimensional electronic system of highly oriented pyrolytic graphite under very strong magnetic field. The change of Hall sign coefficient from negative to positive occurs at low temperature and high magnetic field just after the charge density wave transition, suggesting the role of hole-like quasi-particles in this effect. Angular dependent measurements show that the charge density wave transition and Hall sign reversal fields follow the magnetic field component along","authors_text":"Amit Kumar, Bertrand Raquet, Jean Claude Pivin, Jean-Marie Poumirol, Michel Goiran, Walter Escoffier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-06-06T05:38:11Z","title":"High magnetic field induced charge density waves and sign reversal of the Hall coefficient in graphite"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1006.1085","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":"sha256:51164f42920e53f5aae2aa67fae87fc2a5d894aa746181df43b440cf7bdc46f1","target":"record","created_at":"2026-05-18T04:38:15Z","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":"f965e75a704f8f7d0b130acc3bf37a49c17937cd696eae7d34cf34eb3619d06c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-06-06T05:38:11Z","title_canon_sha256":"046756a1728d73d0dfdb59de253306daaf531f4b962a02b2d3cb2e4025cd1e45"},"schema_version":"1.0","source":{"id":"1006.1085","kind":"arxiv","version":1}},"canonical_sha256":"65a43c669f4552d4c3d8a53c6e8a6d8549326fd1b62ca0d3a4fa86e400637ee5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"65a43c669f4552d4c3d8a53c6e8a6d8549326fd1b62ca0d3a4fa86e400637ee5","first_computed_at":"2026-05-18T04:38:15.377480Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:15.377480Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eZIcSMfBtJtNCemE4BFCgTACNaid3rgJDFboFEC/zzo7vVlf+MfTYMS9dO5PikdWPSR5ROuVvi0iZFUGiWqUAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:15.378306Z","signed_message":"canonical_sha256_bytes"},"source_id":"1006.1085","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51164f42920e53f5aae2aa67fae87fc2a5d894aa746181df43b440cf7bdc46f1","sha256:6318b94e6a3c681c75212ecbd56456ec5048c5f1790aa3cc2768d65b8405dcae"],"state_sha256":"bfd9753e6e3cd4b7208deeed79f0bdbb6cb65d8c537379d12ec7bcc5bcaa5a9e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CRa0pt9g631R2Njm5Rvuvgo+KEkgb9ULn4A9Ew6N/Hjkyne0XotRUG5hSGerjoAePFrcC+2iZQZhLZECiWIgCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T19:01:32.789414Z","bundle_sha256":"a65a6fa77c73fe7460e0046db41c90d36fe13be66def84ab59751ff1fc81cc2c"}}