{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2004:P554DP662N7ACCW5KQYQOLRSKU","short_pith_number":"pith:P554DP66","canonical_record":{"source":{"id":"cond-mat/0403390","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-03-16T11:14:54Z","cross_cats_sorted":[],"title_canon_sha256":"e5d05061a4b8beedf8917f7681f8fe43410171412934a3e4b480da03d0f314bf","abstract_canon_sha256":"8ca986e396ba9bca06ea515d8d73792d9ac44cc33c24e8b661e33c7470f14746"},"schema_version":"1.0"},"canonical_sha256":"7f7bc1bfded37e010add5431072e32552f4aa56815c12b96c832a38f6583b62f","source":{"kind":"arxiv","id":"cond-mat/0403390","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0403390","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0403390v1","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0403390","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"pith_short_12","alias_value":"P554DP662N7A","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"pith_short_16","alias_value":"P554DP662N7ACCW5","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"pith_short_8","alias_value":"P554DP66","created_at":"2026-07-04T16:45:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2004:P554DP662N7ACCW5KQYQOLRSKU","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0403390","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-03-16T11:14:54Z","cross_cats_sorted":[],"title_canon_sha256":"e5d05061a4b8beedf8917f7681f8fe43410171412934a3e4b480da03d0f314bf","abstract_canon_sha256":"8ca986e396ba9bca06ea515d8d73792d9ac44cc33c24e8b661e33c7470f14746"},"schema_version":"1.0"},"canonical_sha256":"7f7bc1bfded37e010add5431072e32552f4aa56815c12b96c832a38f6583b62f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:45:56.424566Z","signature_b64":"0nvGc6r7ejvvWwPZCjh3LRW4r6g3HvEpMzJC11JkK4pLi65yAu8iJRarOCv9uWBt70ssjjt4lNrKjiQpWgbbAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f7bc1bfded37e010add5431072e32552f4aa56815c12b96c832a38f6583b62f","last_reissued_at":"2026-07-04T16:45:56.424198Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:45:56.424198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0403390","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":"2026-07-04T16:45:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S0ZDWN08Tb/scOLZoqd2ma9IQSfJNyoh2I4skxlW82brWufT58dUidtcOC1ofhNqqal5bEu/v87JcuurRc2gBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:01:38.158006Z"},"content_sha256":"dad3c1f527196d156d4f4460178e617d3b569a588d7ab1914b0f686d175d1613","schema_version":"1.0","event_id":"sha256:dad3c1f527196d156d4f4460178e617d3b569a588d7ab1914b0f686d175d1613"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2004:P554DP662N7ACCW5KQYQOLRSKU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The de Haas-van Alphen effect across the metamagnetic transition in Sr$_3$Ru$_2$O$_7$","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. P. Mackenzie, K. Kitagawa, N. Kikugawa, R. A. Borzi, R. S. Perry, S. A. Grigera, Y. Maeno","submitted_at":"2004-03-16T11:14:54Z","abstract_excerpt":"We report a study of the de Haas-van Alphen (dHvA) effect on the itinerant metamagnet Sr$_3$Ru$_2$O$_7$. Extremely high sample purity allows the observation of dHvA oscillations both above and below the metamagnetic transition field of 7.9 T. The quasiparticle masses are fairly large away from the transition, and are enhanced by up to an extra factor of three as the transition is approached, but the Fermi surface topography change is quite small. The results are qualitatively consistent with a field-induced Stoner transition in which the mass enhancement is the result of critical fluctuations."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0403390","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/cond-mat/0403390/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:45:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SapOhsUtt1AnDuYZ8ia+wrJ72SB8OWBFVqhG++qbJT8q2q3svM0htK8DyMm4mZyl6xoFUes1707yZqlyg6pVCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T21:01:38.158453Z"},"content_sha256":"7c5efa9aa78ae4f8379e5abed448122c236e8d20613c39a3b2d0c9e6324859e4","schema_version":"1.0","event_id":"sha256:7c5efa9aa78ae4f8379e5abed448122c236e8d20613c39a3b2d0c9e6324859e4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P554DP662N7ACCW5KQYQOLRSKU/bundle.json","state_url":"https://pith.science/pith/P554DP662N7ACCW5KQYQOLRSKU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P554DP662N7ACCW5KQYQOLRSKU/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":"2026-08-06T21:01:38Z","links":{"resolver":"https://pith.science/pith/P554DP662N7ACCW5KQYQOLRSKU","bundle":"https://pith.science/pith/P554DP662N7ACCW5KQYQOLRSKU/bundle.json","state":"https://pith.science/pith/P554DP662N7ACCW5KQYQOLRSKU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P554DP662N7ACCW5KQYQOLRSKU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:P554DP662N7ACCW5KQYQOLRSKU","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":"8ca986e396ba9bca06ea515d8d73792d9ac44cc33c24e8b661e33c7470f14746","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-03-16T11:14:54Z","title_canon_sha256":"e5d05061a4b8beedf8917f7681f8fe43410171412934a3e4b480da03d0f314bf"},"schema_version":"1.0","source":{"id":"cond-mat/0403390","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0403390","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0403390v1","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0403390","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"pith_short_12","alias_value":"P554DP662N7A","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"pith_short_16","alias_value":"P554DP662N7ACCW5","created_at":"2026-07-04T16:45:56Z"},{"alias_kind":"pith_short_8","alias_value":"P554DP66","created_at":"2026-07-04T16:45:56Z"}],"graph_snapshots":[{"event_id":"sha256:7c5efa9aa78ae4f8379e5abed448122c236e8d20613c39a3b2d0c9e6324859e4","target":"graph","created_at":"2026-07-04T16:45:56Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0403390/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report a study of the de Haas-van Alphen (dHvA) effect on the itinerant metamagnet Sr$_3$Ru$_2$O$_7$. Extremely high sample purity allows the observation of dHvA oscillations both above and below the metamagnetic transition field of 7.9 T. The quasiparticle masses are fairly large away from the transition, and are enhanced by up to an extra factor of three as the transition is approached, but the Fermi surface topography change is quite small. The results are qualitatively consistent with a field-induced Stoner transition in which the mass enhancement is the result of critical fluctuations.","authors_text":"A. P. Mackenzie, K. Kitagawa, N. Kikugawa, R. A. Borzi, R. S. Perry, S. A. Grigera, Y. Maeno","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-03-16T11:14:54Z","title":"The de Haas-van Alphen effect across the metamagnetic transition in Sr$_3$Ru$_2$O$_7$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0403390","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:dad3c1f527196d156d4f4460178e617d3b569a588d7ab1914b0f686d175d1613","target":"record","created_at":"2026-07-04T16:45:56Z","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":"8ca986e396ba9bca06ea515d8d73792d9ac44cc33c24e8b661e33c7470f14746","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2004-03-16T11:14:54Z","title_canon_sha256":"e5d05061a4b8beedf8917f7681f8fe43410171412934a3e4b480da03d0f314bf"},"schema_version":"1.0","source":{"id":"cond-mat/0403390","kind":"arxiv","version":1}},"canonical_sha256":"7f7bc1bfded37e010add5431072e32552f4aa56815c12b96c832a38f6583b62f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f7bc1bfded37e010add5431072e32552f4aa56815c12b96c832a38f6583b62f","first_computed_at":"2026-07-04T16:45:56.424198Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:45:56.424198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0nvGc6r7ejvvWwPZCjh3LRW4r6g3HvEpMzJC11JkK4pLi65yAu8iJRarOCv9uWBt70ssjjt4lNrKjiQpWgbbAg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:45:56.424566Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0403390","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dad3c1f527196d156d4f4460178e617d3b569a588d7ab1914b0f686d175d1613","sha256:7c5efa9aa78ae4f8379e5abed448122c236e8d20613c39a3b2d0c9e6324859e4"],"state_sha256":"f9a9d91d85739dbc40170b10901890ecf5e53f0edbbb4149e0f0f930227441c2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qufNMoQELM03Je0X2K3GHhbjgl14a0mMRNPdthdRW7NxB6oh/amTbRrFAmtduMdFwcmohTEIApzRAnsk4jEJDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T21:01:38.161160Z","bundle_sha256":"5fe83bf291e63e023684fd9227f74f22bad2c42a6661ddf4f279f387b90b475b"}}