{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:7N4XDZ2XPOIMU222ENM7QK6PI3","short_pith_number":"pith:7N4XDZ2X","canonical_record":{"source":{"id":"1105.4778","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-05-24T14:26:06Z","cross_cats_sorted":[],"title_canon_sha256":"8495f0ffb694bb69edeb0004ebf376aed6192f2e8919aaeec43d3674bf044fd6","abstract_canon_sha256":"2afe8467f715b914212890fd5a68815ba20bd534dee51f3ac75fef15778400ce"},"schema_version":"1.0"},"canonical_sha256":"fb7971e7577b90ca6b5a2359f82bcf46f20481708cb9efee9dffcfafde4e7fa9","source":{"kind":"arxiv","id":"1105.4778","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4778","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4778v1","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4778","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"pith_short_12","alias_value":"7N4XDZ2XPOIM","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"7N4XDZ2XPOIMU222","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"7N4XDZ2X","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:7N4XDZ2XPOIMU222ENM7QK6PI3","target":"record","payload":{"canonical_record":{"source":{"id":"1105.4778","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-05-24T14:26:06Z","cross_cats_sorted":[],"title_canon_sha256":"8495f0ffb694bb69edeb0004ebf376aed6192f2e8919aaeec43d3674bf044fd6","abstract_canon_sha256":"2afe8467f715b914212890fd5a68815ba20bd534dee51f3ac75fef15778400ce"},"schema_version":"1.0"},"canonical_sha256":"fb7971e7577b90ca6b5a2359f82bcf46f20481708cb9efee9dffcfafde4e7fa9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:51.704246Z","signature_b64":"+hHqapGAqy9cqgaLeU51igcap8kNuSgjsqBSZXnIJUIyvNO6WZhqm03PU3SlkriAdTFF5vFcU3pbJ4IytA09Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb7971e7577b90ca6b5a2359f82bcf46f20481708cb9efee9dffcfafde4e7fa9","last_reissued_at":"2026-05-18T02:01:51.703545Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:51.703545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.4778","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":"2026-05-18T02:01:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vGF2VeqziONMsBObtJD1EucCPbG0AhC0wu/RADWpEGTEqbKvblk3hfCld0B3hyaWP5yr5S3hxslvEBg6whlFCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:53:07.826512Z"},"content_sha256":"dede1015c31e9a5f3e71bb7ad904c50a53225ed971081dbc6f0bc4ada673de85","schema_version":"1.0","event_id":"sha256:dede1015c31e9a5f3e71bb7ad904c50a53225ed971081dbc6f0bc4ada673de85"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:7N4XDZ2XPOIMU222ENM7QK6PI3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metallic Behavior of Cyclotron Relaxation Time in Two-Dimensional Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Akihito Sekine, Ippei Yasuda, Kentarou Sawano, Kohei Sasaki, Ryuichi Masutomi, Tohru Okamoto, Yasuhiro Shiraki","submitted_at":"2011-05-24T14:26:06Z","abstract_excerpt":"Cyclotron resonance of two-dimensional electrons is studied at low temperatures down to 0.4 K for a high-mobility Si/SiGe quantum well which exhibits a metallic temperature dependence of dc resistivity $\\rho$. The relaxation time $\\tau_{\\rm CR}$ shows a negative temperature dependence, which is similar to that of the transport scattering time $\\tau_t$ obtained from $\\rho$. The ratio $\\tau_{\\rm CR}/\\tau_t$ at 0.4 K increases as the electron density $N_s$ decreases, and exceeds unity when $N_s$ approaches the critical density for the metal-insulator transition."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4778","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":"2026-05-18T02:01:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wvd8Rlfh/lIz1u9BAQH1Pf+1Fm6gQWHMdXnL5I2Jvhxe7MJjyslXDIqXkNNBgD2Apl0tH1nrkZeV0FWfc5S2CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:53:07.826860Z"},"content_sha256":"263e71df06d83040a234dc36da0c063a87eeb8e37b7064bd6793426357cb17d0","schema_version":"1.0","event_id":"sha256:263e71df06d83040a234dc36da0c063a87eeb8e37b7064bd6793426357cb17d0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/bundle.json","state_url":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/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":"2026-06-03T05:53:07Z","links":{"resolver":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3","bundle":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/bundle.json","state":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:7N4XDZ2XPOIMU222ENM7QK6PI3","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":"2afe8467f715b914212890fd5a68815ba20bd534dee51f3ac75fef15778400ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-05-24T14:26:06Z","title_canon_sha256":"8495f0ffb694bb69edeb0004ebf376aed6192f2e8919aaeec43d3674bf044fd6"},"schema_version":"1.0","source":{"id":"1105.4778","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.4778","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"arxiv_version","alias_value":"1105.4778v1","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4778","created_at":"2026-05-18T02:01:51Z"},{"alias_kind":"pith_short_12","alias_value":"7N4XDZ2XPOIM","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"7N4XDZ2XPOIMU222","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"7N4XDZ2X","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:263e71df06d83040a234dc36da0c063a87eeb8e37b7064bd6793426357cb17d0","target":"graph","created_at":"2026-05-18T02:01:51Z","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":"Cyclotron resonance of two-dimensional electrons is studied at low temperatures down to 0.4 K for a high-mobility Si/SiGe quantum well which exhibits a metallic temperature dependence of dc resistivity $\\rho$. The relaxation time $\\tau_{\\rm CR}$ shows a negative temperature dependence, which is similar to that of the transport scattering time $\\tau_t$ obtained from $\\rho$. The ratio $\\tau_{\\rm CR}/\\tau_t$ at 0.4 K increases as the electron density $N_s$ decreases, and exceeds unity when $N_s$ approaches the critical density for the metal-insulator transition.","authors_text":"Akihito Sekine, Ippei Yasuda, Kentarou Sawano, Kohei Sasaki, Ryuichi Masutomi, Tohru Okamoto, Yasuhiro Shiraki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-05-24T14:26:06Z","title":"Metallic Behavior of Cyclotron Relaxation Time in Two-Dimensional Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4778","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:dede1015c31e9a5f3e71bb7ad904c50a53225ed971081dbc6f0bc4ada673de85","target":"record","created_at":"2026-05-18T02:01:51Z","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":"2afe8467f715b914212890fd5a68815ba20bd534dee51f3ac75fef15778400ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-05-24T14:26:06Z","title_canon_sha256":"8495f0ffb694bb69edeb0004ebf376aed6192f2e8919aaeec43d3674bf044fd6"},"schema_version":"1.0","source":{"id":"1105.4778","kind":"arxiv","version":1}},"canonical_sha256":"fb7971e7577b90ca6b5a2359f82bcf46f20481708cb9efee9dffcfafde4e7fa9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb7971e7577b90ca6b5a2359f82bcf46f20481708cb9efee9dffcfafde4e7fa9","first_computed_at":"2026-05-18T02:01:51.703545Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:51.703545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+hHqapGAqy9cqgaLeU51igcap8kNuSgjsqBSZXnIJUIyvNO6WZhqm03PU3SlkriAdTFF5vFcU3pbJ4IytA09Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:51.704246Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.4778","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dede1015c31e9a5f3e71bb7ad904c50a53225ed971081dbc6f0bc4ada673de85","sha256:263e71df06d83040a234dc36da0c063a87eeb8e37b7064bd6793426357cb17d0"],"state_sha256":"f499fe12197f027ab21011e0fe87de0d72dd2d1d690e2a43dfe076afc6357f59"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H6wVKleDwCP8LPJ/i3+SQyUEFvPR80YO5S7ojrOZFeTDIt8GZI37xVLpfuycXt0LtIVygrdCVDxnZuOJTqnpDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T05:53:07.828778Z","bundle_sha256":"e128fef1834f387eaf6403884b5e94b03e806e4b1acb5f6176c5a70b12750a20"}}