{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:JDOW3PQFIMHEGHRK7NAGHKEDJ6","short_pith_number":"pith:JDOW3PQF","canonical_record":{"source":{"id":"1507.00885","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-03T12:17:25Z","cross_cats_sorted":[],"title_canon_sha256":"e64de00dff0e13a4115b9569187d62ec4c13a635250870bdea82523368ba0282","abstract_canon_sha256":"a390f324bed0c9001f6a78712163ec07d4ab0f552127a661047445005182b984"},"schema_version":"1.0"},"canonical_sha256":"48dd6dbe05430e431e2afb4063a8834faea8f5b0b40ce997ef9b377b675a9ab7","source":{"kind":"arxiv","id":"1507.00885","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.00885","created_at":"2026-05-18T01:31:13Z"},{"alias_kind":"arxiv_version","alias_value":"1507.00885v1","created_at":"2026-05-18T01:31:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.00885","created_at":"2026-05-18T01:31:13Z"},{"alias_kind":"pith_short_12","alias_value":"JDOW3PQFIMHE","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JDOW3PQFIMHEGHRK","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JDOW3PQF","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:JDOW3PQFIMHEGHRK7NAGHKEDJ6","target":"record","payload":{"canonical_record":{"source":{"id":"1507.00885","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-03T12:17:25Z","cross_cats_sorted":[],"title_canon_sha256":"e64de00dff0e13a4115b9569187d62ec4c13a635250870bdea82523368ba0282","abstract_canon_sha256":"a390f324bed0c9001f6a78712163ec07d4ab0f552127a661047445005182b984"},"schema_version":"1.0"},"canonical_sha256":"48dd6dbe05430e431e2afb4063a8834faea8f5b0b40ce997ef9b377b675a9ab7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:13.508625Z","signature_b64":"OX9gKevlzmfxhgeklD3KEA10s+/3bDUfZOAgv5h5Nz5/K4O1f9xvLUYTZIOW6Da802jT7uwC9jnwCBaLV7feAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48dd6dbe05430e431e2afb4063a8834faea8f5b0b40ce997ef9b377b675a9ab7","last_reissued_at":"2026-05-18T01:31:13.507894Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:13.507894Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.00885","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":"2026-05-18T01:31:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GruFnEI+lR4FCmNo8mhIIjp4wadjfVvCX1/8D4dneiCktRWbXq3v1kkh+pTiLKMUOGjwb7O9JVW666FpwtVJCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:46:25.324339Z"},"content_sha256":"3a87fc00eb6ff16dd703f9cd36607f0c05aaeeee365a3cee2b1a0408bd365e90","schema_version":"1.0","event_id":"sha256:3a87fc00eb6ff16dd703f9cd36607f0c05aaeeee365a3cee2b1a0408bd365e90"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:JDOW3PQFIMHEGHRK7NAGHKEDJ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum oscillations without a Fermi surface and the anomalous de Haas-van Alphen effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Johannes Knolle, Nigel R. Cooper","submitted_at":"2015-07-03T12:17:25Z","abstract_excerpt":"The de Haas-van Alphen effect (dHvAe), describing oscillations of the magnetization as a function of magnetic field, is commonly assumed to be a definite sign for the presence of a Fermi surface (FS). Indeed, the effect forms the basis of a well-established experimental procedure for accurately measuring FS topology and geometry of metallic systems, with parameters commonly extracted by fitting to the Lifshitz-Kosevich (LK) theory based on Fermi liquid theory. Here we show that, in contrast to this canonical situation, there can be quantum oscillations even for band insulators of certain types"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.00885","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":"2026-05-18T01:31:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WGR9h92GbbQwrCqa3Warf8r7BY2ItEcsDWoJ7IyPNI+2LlONhdXbvWj8FPQzqEzFvAjrVck550WNt3g7AVJ0Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:46:25.324894Z"},"content_sha256":"178f5e21ece50ae150915a78dfa9e7888b3183a2d7bf369fd7bcd765f780115b","schema_version":"1.0","event_id":"sha256:178f5e21ece50ae150915a78dfa9e7888b3183a2d7bf369fd7bcd765f780115b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JDOW3PQFIMHEGHRK7NAGHKEDJ6/bundle.json","state_url":"https://pith.science/pith/JDOW3PQFIMHEGHRK7NAGHKEDJ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JDOW3PQFIMHEGHRK7NAGHKEDJ6/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":"2026-05-28T21:46:25Z","links":{"resolver":"https://pith.science/pith/JDOW3PQFIMHEGHRK7NAGHKEDJ6","bundle":"https://pith.science/pith/JDOW3PQFIMHEGHRK7NAGHKEDJ6/bundle.json","state":"https://pith.science/pith/JDOW3PQFIMHEGHRK7NAGHKEDJ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JDOW3PQFIMHEGHRK7NAGHKEDJ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JDOW3PQFIMHEGHRK7NAGHKEDJ6","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":"a390f324bed0c9001f6a78712163ec07d4ab0f552127a661047445005182b984","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-03T12:17:25Z","title_canon_sha256":"e64de00dff0e13a4115b9569187d62ec4c13a635250870bdea82523368ba0282"},"schema_version":"1.0","source":{"id":"1507.00885","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.00885","created_at":"2026-05-18T01:31:13Z"},{"alias_kind":"arxiv_version","alias_value":"1507.00885v1","created_at":"2026-05-18T01:31:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.00885","created_at":"2026-05-18T01:31:13Z"},{"alias_kind":"pith_short_12","alias_value":"JDOW3PQFIMHE","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JDOW3PQFIMHEGHRK","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JDOW3PQF","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:178f5e21ece50ae150915a78dfa9e7888b3183a2d7bf369fd7bcd765f780115b","target":"graph","created_at":"2026-05-18T01:31:13Z","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":"The de Haas-van Alphen effect (dHvAe), describing oscillations of the magnetization as a function of magnetic field, is commonly assumed to be a definite sign for the presence of a Fermi surface (FS). Indeed, the effect forms the basis of a well-established experimental procedure for accurately measuring FS topology and geometry of metallic systems, with parameters commonly extracted by fitting to the Lifshitz-Kosevich (LK) theory based on Fermi liquid theory. Here we show that, in contrast to this canonical situation, there can be quantum oscillations even for band insulators of certain types","authors_text":"Johannes Knolle, Nigel R. Cooper","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-03T12:17:25Z","title":"Quantum oscillations without a Fermi surface and the anomalous de Haas-van Alphen effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.00885","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":"sha256:3a87fc00eb6ff16dd703f9cd36607f0c05aaeeee365a3cee2b1a0408bd365e90","target":"record","created_at":"2026-05-18T01:31:13Z","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":"a390f324bed0c9001f6a78712163ec07d4ab0f552127a661047445005182b984","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-03T12:17:25Z","title_canon_sha256":"e64de00dff0e13a4115b9569187d62ec4c13a635250870bdea82523368ba0282"},"schema_version":"1.0","source":{"id":"1507.00885","kind":"arxiv","version":1}},"canonical_sha256":"48dd6dbe05430e431e2afb4063a8834faea8f5b0b40ce997ef9b377b675a9ab7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48dd6dbe05430e431e2afb4063a8834faea8f5b0b40ce997ef9b377b675a9ab7","first_computed_at":"2026-05-18T01:31:13.507894Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:13.507894Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OX9gKevlzmfxhgeklD3KEA10s+/3bDUfZOAgv5h5Nz5/K4O1f9xvLUYTZIOW6Da802jT7uwC9jnwCBaLV7feAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:13.508625Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.00885","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a87fc00eb6ff16dd703f9cd36607f0c05aaeeee365a3cee2b1a0408bd365e90","sha256:178f5e21ece50ae150915a78dfa9e7888b3183a2d7bf369fd7bcd765f780115b"],"state_sha256":"21a02e1988a15d4984a9de85de2119e054bf983498f91c74581a603c34980f99"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KYstMxR9qgI64V0CgF5fxTzW9goiMNFR3kaPQLp5a81VuheM7SgBBEW/GbWMUhxqpyoqlkBS/GzW0C6kV2W6Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T21:46:25.328572Z","bundle_sha256":"ca3b0964ce1bfc0d5c2ee130a82bf9c900a61fde532969060c9392e70cfaf31f"}}