{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:M2TDEDSY3DSDXCSGSVV4PB4WMB","short_pith_number":"pith:M2TDEDSY","canonical_record":{"source":{"id":"1306.3537","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-15T01:37:54Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e9e61deae5c857447a3a2ed67c64294eccc1f677c95120b40d5d2a10763b5965","abstract_canon_sha256":"63d06a68c17c2dff496b6016bd4db872e1620dd25c5fe0211955889f0661e96c"},"schema_version":"1.0"},"canonical_sha256":"66a6320e58d8e43b8a46956bc787966041a124fad152b200f72b964da28bc709","source":{"kind":"arxiv","id":"1306.3537","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.3537","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"arxiv_version","alias_value":"1306.3537v2","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.3537","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"pith_short_12","alias_value":"M2TDEDSY3DSD","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"M2TDEDSY3DSDXCSG","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"M2TDEDSY","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:M2TDEDSY3DSDXCSGSVV4PB4WMB","target":"record","payload":{"canonical_record":{"source":{"id":"1306.3537","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-15T01:37:54Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"e9e61deae5c857447a3a2ed67c64294eccc1f677c95120b40d5d2a10763b5965","abstract_canon_sha256":"63d06a68c17c2dff496b6016bd4db872e1620dd25c5fe0211955889f0661e96c"},"schema_version":"1.0"},"canonical_sha256":"66a6320e58d8e43b8a46956bc787966041a124fad152b200f72b964da28bc709","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:16.666612Z","signature_b64":"KfBdTXqD4qoVSQye3zlZl7FGsgFruNaZPNq+5VZmn1LANaauvhlo9/nBdDKNp6TXngnx/hXnywHtmSCqJkz8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"66a6320e58d8e43b8a46956bc787966041a124fad152b200f72b964da28bc709","last_reissued_at":"2026-05-18T01:49:16.665976Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:16.665976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.3537","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":"2026-05-18T01:49:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BZw534zLG8ZkHqo/fwZ5acu+hBkZhcvHXjS1JKPIgDhlJLJTZCGlM5cNlcdUy0bSL2Jl4zxKkR4RbhM96O+ECw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:50:15.690243Z"},"content_sha256":"2afad636b38a5039a4eee8349e9de10cc8eaf6dcd91ae85590dcfacdd28cf0b0","schema_version":"1.0","event_id":"sha256:2afad636b38a5039a4eee8349e9de10cc8eaf6dcd91ae85590dcfacdd28cf0b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:M2TDEDSY3DSDXCSGSVV4PB4WMB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Anisotropic Fermi Contour of (001) GaAs Electrons in Parallel Magnetic Fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"D. Kamburov, J. J. D. Lee, K. W. Baldwin, K. W. West, L. N. Pfeiffer, M. A. Mueed, M. Shayegan, R. Winkler","submitted_at":"2013-06-15T01:37:54Z","abstract_excerpt":"We demonstrate a severe Fermi contour anisotropy induced by the application of a parallel magnetic field to high-mobility electrons confined to a 30-nm-wide (001) GaAs quantum well. We study commensurability oscillations, namely geometrical resonances of the electron orbits with a unidirectional, surface-strain-induced, periodic potential modulation, to directly probe the size of the Fermi contours along and perpendicular to the parallel field. Their areas are obtained from the Shubnikov-de Haas oscillations. Our experimental data agree semi-quantitatively with the results of parameter-free ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3537","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":"2026-05-18T01:49:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t2NMj47g8WY1kSyFLAzy0E/slny+br/zvQ39BcaNLXr28hqd8uY+IGxLZIwsZHNyUjiiWhwhvO2lUBQh96D9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:50:15.691017Z"},"content_sha256":"2bdba09cf799f3d68f28054df5fb80a3a9d7ba33130ec66e7e4f4867aaa25ce0","schema_version":"1.0","event_id":"sha256:2bdba09cf799f3d68f28054df5fb80a3a9d7ba33130ec66e7e4f4867aaa25ce0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M2TDEDSY3DSDXCSGSVV4PB4WMB/bundle.json","state_url":"https://pith.science/pith/M2TDEDSY3DSDXCSGSVV4PB4WMB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M2TDEDSY3DSDXCSGSVV4PB4WMB/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":"2026-05-25T16:50:15Z","links":{"resolver":"https://pith.science/pith/M2TDEDSY3DSDXCSGSVV4PB4WMB","bundle":"https://pith.science/pith/M2TDEDSY3DSDXCSGSVV4PB4WMB/bundle.json","state":"https://pith.science/pith/M2TDEDSY3DSDXCSGSVV4PB4WMB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M2TDEDSY3DSDXCSGSVV4PB4WMB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:M2TDEDSY3DSDXCSGSVV4PB4WMB","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":"63d06a68c17c2dff496b6016bd4db872e1620dd25c5fe0211955889f0661e96c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-15T01:37:54Z","title_canon_sha256":"e9e61deae5c857447a3a2ed67c64294eccc1f677c95120b40d5d2a10763b5965"},"schema_version":"1.0","source":{"id":"1306.3537","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.3537","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"arxiv_version","alias_value":"1306.3537v2","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.3537","created_at":"2026-05-18T01:49:16Z"},{"alias_kind":"pith_short_12","alias_value":"M2TDEDSY3DSD","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"M2TDEDSY3DSDXCSG","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"M2TDEDSY","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:2bdba09cf799f3d68f28054df5fb80a3a9d7ba33130ec66e7e4f4867aaa25ce0","target":"graph","created_at":"2026-05-18T01:49:16Z","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 demonstrate a severe Fermi contour anisotropy induced by the application of a parallel magnetic field to high-mobility electrons confined to a 30-nm-wide (001) GaAs quantum well. We study commensurability oscillations, namely geometrical resonances of the electron orbits with a unidirectional, surface-strain-induced, periodic potential modulation, to directly probe the size of the Fermi contours along and perpendicular to the parallel field. Their areas are obtained from the Shubnikov-de Haas oscillations. Our experimental data agree semi-quantitatively with the results of parameter-free ca","authors_text":"D. Kamburov, J. J. D. Lee, K. W. Baldwin, K. W. West, L. N. Pfeiffer, M. A. Mueed, M. Shayegan, R. Winkler","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-15T01:37:54Z","title":"Anisotropic Fermi Contour of (001) GaAs Electrons in Parallel Magnetic Fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.3537","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":"sha256:2afad636b38a5039a4eee8349e9de10cc8eaf6dcd91ae85590dcfacdd28cf0b0","target":"record","created_at":"2026-05-18T01:49:16Z","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":"63d06a68c17c2dff496b6016bd4db872e1620dd25c5fe0211955889f0661e96c","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2013-06-15T01:37:54Z","title_canon_sha256":"e9e61deae5c857447a3a2ed67c64294eccc1f677c95120b40d5d2a10763b5965"},"schema_version":"1.0","source":{"id":"1306.3537","kind":"arxiv","version":2}},"canonical_sha256":"66a6320e58d8e43b8a46956bc787966041a124fad152b200f72b964da28bc709","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66a6320e58d8e43b8a46956bc787966041a124fad152b200f72b964da28bc709","first_computed_at":"2026-05-18T01:49:16.665976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:16.665976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KfBdTXqD4qoVSQye3zlZl7FGsgFruNaZPNq+5VZmn1LANaauvhlo9/nBdDKNp6TXngnx/hXnywHtmSCqJkz8BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:16.666612Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.3537","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2afad636b38a5039a4eee8349e9de10cc8eaf6dcd91ae85590dcfacdd28cf0b0","sha256:2bdba09cf799f3d68f28054df5fb80a3a9d7ba33130ec66e7e4f4867aaa25ce0"],"state_sha256":"3a769202c367ed56ccee9326c8e2c75600e680527b295b32d90c224f90bf6ceb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e2SHYscTBurzy3hOqwNZmC6X8CYKDBq3/RsE7o5eehxe/E+J8THE+p2weGkGkhBnXQ9GJh3ocUqqUKPQPurDBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:50:15.695120Z","bundle_sha256":"53e881c0a27bea5af3c35602bc9a892b955e3c2cea76bd707b2274f0cfbcfa8e"}}