{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:XOB4ZLSW3SRWHM7NIOVBP2SAQ7","short_pith_number":"pith:XOB4ZLSW","canonical_record":{"source":{"id":"1009.4290","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-09-22T08:33:18Z","cross_cats_sorted":[],"title_canon_sha256":"9103e48bac0bf4de2473a4be8e03c20e3bbeb5d4119dfd90f1b4f2b5ddcbb5d6","abstract_canon_sha256":"8f5768d08f2a85bf65272cc0123be2fd7ad2d0eac41c056db536f0c851ff6534"},"schema_version":"1.0"},"canonical_sha256":"bb83ccae56dca363b3ed43aa17ea4087d6d5731ffd21967b545e76a0fb8d48b1","source":{"kind":"arxiv","id":"1009.4290","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4290","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4290v2","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4290","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"pith_short_12","alias_value":"XOB4ZLSW3SRW","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XOB4ZLSW3SRWHM7N","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XOB4ZLSW","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:XOB4ZLSW3SRWHM7NIOVBP2SAQ7","target":"record","payload":{"canonical_record":{"source":{"id":"1009.4290","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-09-22T08:33:18Z","cross_cats_sorted":[],"title_canon_sha256":"9103e48bac0bf4de2473a4be8e03c20e3bbeb5d4119dfd90f1b4f2b5ddcbb5d6","abstract_canon_sha256":"8f5768d08f2a85bf65272cc0123be2fd7ad2d0eac41c056db536f0c851ff6534"},"schema_version":"1.0"},"canonical_sha256":"bb83ccae56dca363b3ed43aa17ea4087d6d5731ffd21967b545e76a0fb8d48b1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:18.844624Z","signature_b64":"CpjttAeIrk+kV16VVFV+1mNY3RYCzoNb2J6lGLnss2kMPySUe9H90l86Q/7Dd1m4Cv5SBPdrD/g5YtEtPtjkBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bb83ccae56dca363b3ed43aa17ea4087d6d5731ffd21967b545e76a0fb8d48b1","last_reissued_at":"2026-05-18T02:05:18.844127Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:18.844127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.4290","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":"2026-05-18T02:05:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XBaF5HBWRgqiJnd9j8SWbjMJB7yEnYNa6FtAReeJ+X/VGJcGXvfvqkwLlbPyouGGAE7pav3Cz442wPRmy7kADw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:59:22.432151Z"},"content_sha256":"19854ba52ed45e996f38105e8d90f8545d4ec6b004dc232f3c079ad2b9590f04","schema_version":"1.0","event_id":"sha256:19854ba52ed45e996f38105e8d90f8545d4ec6b004dc232f3c079ad2b9590f04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:XOB4ZLSW3SRWHM7NIOVBP2SAQ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temperature- and Magnetic-Field-Dependent Optical Properties of Heavy Quasiparticles in YbIr2Si2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"A. Herzog, C. Geibel, C. Krellner, F. Steglich, J. Sichelschmidt, S. Kimura, T. Iizuka","submitted_at":"2010-09-22T08:33:18Z","abstract_excerpt":"We report the temperature- and magnetic-field-dependent optical conductivity spectra of the heavy electron metal YbIr$_2$Si$_2$. Upon cooling below the Kondo temperature ($T_{\\rm K}$), we observed a typical charge dynamics that is expected for a formation of a coherent heavy quasiparticle state. We obtained a good fitting of the Drude weight of the heavy quasiparticles by applying a modified Drude formula with a photon energy dependence of the quasiparticle scattering rate that shows a similar power-law behavior as the temperature dependence of the electrical resistivity. By applying a magneti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4290","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":"2026-05-18T02:05:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zz3w2Z8Mn7XjG1kGC5upZccOaWK3pjIrJ4OkjQu9D5cgFED2uF3TYlHQr4ntfxoFpZ0VXSjkmjGf9ATQ+FHTCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T22:59:22.432831Z"},"content_sha256":"838261940302394098f53253b9dd02b5926afff7cbd8a55c91d6e3605ff4d772","schema_version":"1.0","event_id":"sha256:838261940302394098f53253b9dd02b5926afff7cbd8a55c91d6e3605ff4d772"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XOB4ZLSW3SRWHM7NIOVBP2SAQ7/bundle.json","state_url":"https://pith.science/pith/XOB4ZLSW3SRWHM7NIOVBP2SAQ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XOB4ZLSW3SRWHM7NIOVBP2SAQ7/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":"2026-05-27T22:59:22Z","links":{"resolver":"https://pith.science/pith/XOB4ZLSW3SRWHM7NIOVBP2SAQ7","bundle":"https://pith.science/pith/XOB4ZLSW3SRWHM7NIOVBP2SAQ7/bundle.json","state":"https://pith.science/pith/XOB4ZLSW3SRWHM7NIOVBP2SAQ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XOB4ZLSW3SRWHM7NIOVBP2SAQ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:XOB4ZLSW3SRWHM7NIOVBP2SAQ7","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":"8f5768d08f2a85bf65272cc0123be2fd7ad2d0eac41c056db536f0c851ff6534","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-09-22T08:33:18Z","title_canon_sha256":"9103e48bac0bf4de2473a4be8e03c20e3bbeb5d4119dfd90f1b4f2b5ddcbb5d6"},"schema_version":"1.0","source":{"id":"1009.4290","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4290","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4290v2","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4290","created_at":"2026-05-18T02:05:18Z"},{"alias_kind":"pith_short_12","alias_value":"XOB4ZLSW3SRW","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XOB4ZLSW3SRWHM7N","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XOB4ZLSW","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:838261940302394098f53253b9dd02b5926afff7cbd8a55c91d6e3605ff4d772","target":"graph","created_at":"2026-05-18T02:05:18Z","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 the temperature- and magnetic-field-dependent optical conductivity spectra of the heavy electron metal YbIr$_2$Si$_2$. Upon cooling below the Kondo temperature ($T_{\\rm K}$), we observed a typical charge dynamics that is expected for a formation of a coherent heavy quasiparticle state. We obtained a good fitting of the Drude weight of the heavy quasiparticles by applying a modified Drude formula with a photon energy dependence of the quasiparticle scattering rate that shows a similar power-law behavior as the temperature dependence of the electrical resistivity. By applying a magneti","authors_text":"A. Herzog, C. Geibel, C. Krellner, F. Steglich, J. Sichelschmidt, S. Kimura, T. Iizuka","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-09-22T08:33:18Z","title":"Temperature- and Magnetic-Field-Dependent Optical Properties of Heavy Quasiparticles in YbIr2Si2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4290","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":"sha256:19854ba52ed45e996f38105e8d90f8545d4ec6b004dc232f3c079ad2b9590f04","target":"record","created_at":"2026-05-18T02:05:18Z","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":"8f5768d08f2a85bf65272cc0123be2fd7ad2d0eac41c056db536f0c851ff6534","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-09-22T08:33:18Z","title_canon_sha256":"9103e48bac0bf4de2473a4be8e03c20e3bbeb5d4119dfd90f1b4f2b5ddcbb5d6"},"schema_version":"1.0","source":{"id":"1009.4290","kind":"arxiv","version":2}},"canonical_sha256":"bb83ccae56dca363b3ed43aa17ea4087d6d5731ffd21967b545e76a0fb8d48b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb83ccae56dca363b3ed43aa17ea4087d6d5731ffd21967b545e76a0fb8d48b1","first_computed_at":"2026-05-18T02:05:18.844127Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:18.844127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CpjttAeIrk+kV16VVFV+1mNY3RYCzoNb2J6lGLnss2kMPySUe9H90l86Q/7Dd1m4Cv5SBPdrD/g5YtEtPtjkBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:18.844624Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.4290","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19854ba52ed45e996f38105e8d90f8545d4ec6b004dc232f3c079ad2b9590f04","sha256:838261940302394098f53253b9dd02b5926afff7cbd8a55c91d6e3605ff4d772"],"state_sha256":"8770bfe08bc9ee1f8b8dd353e4d58839957a790f1c3771e9b5dc477d0e97459a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wVmp82O+t3D09s+il//r1DmSzC/SO4b8FyDXADWFDehc/ywhYBH6PEiz7kTLWBl+cE9Cn2SkNBD2KO1t/lVZDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T22:59:22.436268Z","bundle_sha256":"1b04dcdc035886da06e87aad8d24443106d6e83d9518eb7ab153b67ce2df030a"}}