{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:472QFH6GP3THORTDF3OX5HSVBB","short_pith_number":"pith:472QFH6G","canonical_record":{"source":{"id":"1708.04574","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-08-15T16:19:41Z","cross_cats_sorted":[],"title_canon_sha256":"6741e39193faa5ce90ceef48072ed15516f05bb0bf05d4439c3f197d300a6ed3","abstract_canon_sha256":"d0efee2a35d85579698572bebf8af4d24db2a7f0e290e34b51aa80837af31774"},"schema_version":"1.0"},"canonical_sha256":"e7f5029fc67ee67746632edd7e9e55086fb83750fd3e2141f62d63597332a05f","source":{"kind":"arxiv","id":"1708.04574","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04574","created_at":"2026-05-18T00:24:16Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04574v2","created_at":"2026-05-18T00:24:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04574","created_at":"2026-05-18T00:24:16Z"},{"alias_kind":"pith_short_12","alias_value":"472QFH6GP3TH","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"472QFH6GP3THORTD","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"472QFH6G","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:472QFH6GP3THORTDF3OX5HSVBB","target":"record","payload":{"canonical_record":{"source":{"id":"1708.04574","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-08-15T16:19:41Z","cross_cats_sorted":[],"title_canon_sha256":"6741e39193faa5ce90ceef48072ed15516f05bb0bf05d4439c3f197d300a6ed3","abstract_canon_sha256":"d0efee2a35d85579698572bebf8af4d24db2a7f0e290e34b51aa80837af31774"},"schema_version":"1.0"},"canonical_sha256":"e7f5029fc67ee67746632edd7e9e55086fb83750fd3e2141f62d63597332a05f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:16.714540Z","signature_b64":"NP27f7yxoG8jT0t66Z5+TVAtPhS03/ci+gh2U77LMS7iPuqQtRw3q2BQ/tX5Uf7KYF/uYtkadyyjdYX1gIizCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7f5029fc67ee67746632edd7e9e55086fb83750fd3e2141f62d63597332a05f","last_reissued_at":"2026-05-18T00:24:16.713978Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:16.713978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.04574","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":"2026-05-18T00:24:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DXkao6bSop0tyCO0PubMQ/k7GiQWatN8+v65JEhOOqG2wJP82kdh2pdI6O0F3tFsyh2ZYleOg7NcLIvJANpsAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:49:15.444645Z"},"content_sha256":"3a12c6625e85c5fb42acc2abd099c8c288bad547e57263253acc96809270a4b7","schema_version":"1.0","event_id":"sha256:3a12c6625e85c5fb42acc2abd099c8c288bad547e57263253acc96809270a4b7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:472QFH6GP3THORTDF3OX5HSVBB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polarization and plasmons in hot photoexcited graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Freddie Page, Joachim M. Hamm, Ortwin Hess","submitted_at":"2017-08-15T16:19:41Z","abstract_excerpt":"We present a robust and exact method for calculating the polarization function and plasmon dispersion of graphene, for an arbitrary (isotropic) non-equilibrium carrier distribution, within random phase approximation (RPA). This is demonstrated for a range of carrier distributions, including hot carrier distributions which occur within the femtoseconds following photoexcitation. We show that qualitatively different behaviour from the equilibrium case can occur. As the polarization function determines dynamic screening, its calculation shall be essential to quantifying carrier-carrier scattering"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04574","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":"2026-05-18T00:24:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XJqrJM/NXcaCutWRtFtkCfpM4gFHFpRUS0BxpIQNZ/XAN0LQ5tpXiTDx2tsUrJxUXFZy0SuH6N7Ml7IEUVSPAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:49:15.445337Z"},"content_sha256":"336b39166200e5ada8de0e36261145ba5febabec11f320be3ef91262fea20207","schema_version":"1.0","event_id":"sha256:336b39166200e5ada8de0e36261145ba5febabec11f320be3ef91262fea20207"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/472QFH6GP3THORTDF3OX5HSVBB/bundle.json","state_url":"https://pith.science/pith/472QFH6GP3THORTDF3OX5HSVBB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/472QFH6GP3THORTDF3OX5HSVBB/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":"2026-05-28T20:49:15Z","links":{"resolver":"https://pith.science/pith/472QFH6GP3THORTDF3OX5HSVBB","bundle":"https://pith.science/pith/472QFH6GP3THORTDF3OX5HSVBB/bundle.json","state":"https://pith.science/pith/472QFH6GP3THORTDF3OX5HSVBB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/472QFH6GP3THORTDF3OX5HSVBB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:472QFH6GP3THORTDF3OX5HSVBB","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":"d0efee2a35d85579698572bebf8af4d24db2a7f0e290e34b51aa80837af31774","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-08-15T16:19:41Z","title_canon_sha256":"6741e39193faa5ce90ceef48072ed15516f05bb0bf05d4439c3f197d300a6ed3"},"schema_version":"1.0","source":{"id":"1708.04574","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.04574","created_at":"2026-05-18T00:24:16Z"},{"alias_kind":"arxiv_version","alias_value":"1708.04574v2","created_at":"2026-05-18T00:24:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.04574","created_at":"2026-05-18T00:24:16Z"},{"alias_kind":"pith_short_12","alias_value":"472QFH6GP3TH","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"472QFH6GP3THORTD","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"472QFH6G","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:336b39166200e5ada8de0e36261145ba5febabec11f320be3ef91262fea20207","target":"graph","created_at":"2026-05-18T00:24:16Z","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 present a robust and exact method for calculating the polarization function and plasmon dispersion of graphene, for an arbitrary (isotropic) non-equilibrium carrier distribution, within random phase approximation (RPA). This is demonstrated for a range of carrier distributions, including hot carrier distributions which occur within the femtoseconds following photoexcitation. We show that qualitatively different behaviour from the equilibrium case can occur. As the polarization function determines dynamic screening, its calculation shall be essential to quantifying carrier-carrier scattering","authors_text":"A. Freddie Page, Joachim M. Hamm, Ortwin Hess","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-08-15T16:19:41Z","title":"Polarization and plasmons in hot photoexcited graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.04574","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":"sha256:3a12c6625e85c5fb42acc2abd099c8c288bad547e57263253acc96809270a4b7","target":"record","created_at":"2026-05-18T00:24:16Z","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":"d0efee2a35d85579698572bebf8af4d24db2a7f0e290e34b51aa80837af31774","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-08-15T16:19:41Z","title_canon_sha256":"6741e39193faa5ce90ceef48072ed15516f05bb0bf05d4439c3f197d300a6ed3"},"schema_version":"1.0","source":{"id":"1708.04574","kind":"arxiv","version":2}},"canonical_sha256":"e7f5029fc67ee67746632edd7e9e55086fb83750fd3e2141f62d63597332a05f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7f5029fc67ee67746632edd7e9e55086fb83750fd3e2141f62d63597332a05f","first_computed_at":"2026-05-18T00:24:16.713978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:16.713978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NP27f7yxoG8jT0t66Z5+TVAtPhS03/ci+gh2U77LMS7iPuqQtRw3q2BQ/tX5Uf7KYF/uYtkadyyjdYX1gIizCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:16.714540Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.04574","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a12c6625e85c5fb42acc2abd099c8c288bad547e57263253acc96809270a4b7","sha256:336b39166200e5ada8de0e36261145ba5febabec11f320be3ef91262fea20207"],"state_sha256":"c3d52f042d56bfcec0c26736496def565d2cd8aca62acb6701bdb23337ef2e58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MD1oBgC9jbcuUlbnU0tvlY4bOnbJ6NouIvKoulqiqz5+Zh7JnPArxLqCY9Y3QNGY95NN38kFeG38brj9ALI6DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:49:15.449036Z","bundle_sha256":"ffc4790a075831bd023a065da48d69b225787f25612986552c24e6c983015395"}}