{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:IBQRAN3F4BFPJKYI44HJTDWFML","short_pith_number":"pith:IBQRAN3F","canonical_record":{"source":{"id":"1702.08163","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-27T07:13:34Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"ff38968e2cd86058b512e5b0dee19f9c7188c1d6e5068728b486beb55c8f9137","abstract_canon_sha256":"9530df5643e5e7b08e6fa02bed0147cd6b0c3d51b5a8c6431bb9df4757bb71de"},"schema_version":"1.0"},"canonical_sha256":"4061103765e04af4ab08e70e998ec562d6c49fbde7a0d51bad429ffa6f714568","source":{"kind":"arxiv","id":"1702.08163","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.08163","created_at":"2026-05-18T00:03:19Z"},{"alias_kind":"arxiv_version","alias_value":"1702.08163v4","created_at":"2026-05-18T00:03:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08163","created_at":"2026-05-18T00:03:19Z"},{"alias_kind":"pith_short_12","alias_value":"IBQRAN3F4BFP","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IBQRAN3F4BFPJKYI","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IBQRAN3F","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:IBQRAN3F4BFPJKYI44HJTDWFML","target":"record","payload":{"canonical_record":{"source":{"id":"1702.08163","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-27T07:13:34Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"ff38968e2cd86058b512e5b0dee19f9c7188c1d6e5068728b486beb55c8f9137","abstract_canon_sha256":"9530df5643e5e7b08e6fa02bed0147cd6b0c3d51b5a8c6431bb9df4757bb71de"},"schema_version":"1.0"},"canonical_sha256":"4061103765e04af4ab08e70e998ec562d6c49fbde7a0d51bad429ffa6f714568","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:19.845818Z","signature_b64":"1ZVVOOLv8PXW7VACXnqdHQ5i7KDdL+xi2JsDWQgrDlCavADyMHLyfdd+EOk6HbIIWfL0ZIss5Pa5Xio8KNooCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4061103765e04af4ab08e70e998ec562d6c49fbde7a0d51bad429ffa6f714568","last_reissued_at":"2026-05-18T00:03:19.845293Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:19.845293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.08163","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:03:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TPscHvmolPyNSzjucxmYMRxLCXrjc1L2NEPoe13D8Xb5p5FDs/XLu6JjAKsmGHIr6RbJMlSO8ospgMAQMiaABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:43:20.989126Z"},"content_sha256":"48d4a667fb2c87b1de9eff0f7fa4d5e01632c311b9945e244399d5119898ec25","schema_version":"1.0","event_id":"sha256:48d4a667fb2c87b1de9eff0f7fa4d5e01632c311b9945e244399d5119898ec25"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:IBQRAN3F4BFPJKYI44HJTDWFML","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Momentum-resolved TDDFT algorithm in atomic basis for real time tracking of electronic excitation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chao Lian, Meng-Xue Guan, Sheng Meng, Shi-Qi Hu","submitted_at":"2017-02-27T07:13:34Z","abstract_excerpt":"Ultrafast electronic dynamics in solids lies at the core of modern condensed matter and materials physics. To build up a practical ab initio method for studying solids under photoexcitation, we develop a momentum-resolved real-time time dependent density functional theory (rt-TDDFT)algorithm using numerical atomic basis, together with the implementation of both the length and vector gauge of the electromagnetic field. When applied to simulate elementary excitations in two-dimensional materials such as graphene, different excitation modes, only distinguishable in momentum space, are observed. T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08163","kind":"arxiv","version":4},"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":"2026-05-18T00:03:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lBXjBjPpKYxw8Cted7P8gAyui0BshC/X7H1Zqw30HbpQs0g221xuDKbgjhctCv7+XlWXrOUnHUtza8i2X9vtDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:43:20.989548Z"},"content_sha256":"666aa807827814dcc041cf7cf849b6cac782b2ea76c1f911e3bc45a2a502aa26","schema_version":"1.0","event_id":"sha256:666aa807827814dcc041cf7cf849b6cac782b2ea76c1f911e3bc45a2a502aa26"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/bundle.json","state_url":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IBQRAN3F4BFPJKYI44HJTDWFML/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":"2026-05-27T23:43:20Z","links":{"resolver":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML","bundle":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/bundle.json","state":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IBQRAN3F4BFPJKYI44HJTDWFML/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IBQRAN3F4BFPJKYI44HJTDWFML","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":"9530df5643e5e7b08e6fa02bed0147cd6b0c3d51b5a8c6431bb9df4757bb71de","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-27T07:13:34Z","title_canon_sha256":"ff38968e2cd86058b512e5b0dee19f9c7188c1d6e5068728b486beb55c8f9137"},"schema_version":"1.0","source":{"id":"1702.08163","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.08163","created_at":"2026-05-18T00:03:19Z"},{"alias_kind":"arxiv_version","alias_value":"1702.08163v4","created_at":"2026-05-18T00:03:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08163","created_at":"2026-05-18T00:03:19Z"},{"alias_kind":"pith_short_12","alias_value":"IBQRAN3F4BFP","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IBQRAN3F4BFPJKYI","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IBQRAN3F","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:666aa807827814dcc041cf7cf849b6cac782b2ea76c1f911e3bc45a2a502aa26","target":"graph","created_at":"2026-05-18T00:03:19Z","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":"Ultrafast electronic dynamics in solids lies at the core of modern condensed matter and materials physics. To build up a practical ab initio method for studying solids under photoexcitation, we develop a momentum-resolved real-time time dependent density functional theory (rt-TDDFT)algorithm using numerical atomic basis, together with the implementation of both the length and vector gauge of the electromagnetic field. When applied to simulate elementary excitations in two-dimensional materials such as graphene, different excitation modes, only distinguishable in momentum space, are observed. T","authors_text":"Chao Lian, Meng-Xue Guan, Sheng Meng, Shi-Qi Hu","cross_cats":["cond-mat.mes-hall","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-27T07:13:34Z","title":"Momentum-resolved TDDFT algorithm in atomic basis for real time tracking of electronic excitation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08163","kind":"arxiv","version":4},"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":"sha256:48d4a667fb2c87b1de9eff0f7fa4d5e01632c311b9945e244399d5119898ec25","target":"record","created_at":"2026-05-18T00:03:19Z","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":"9530df5643e5e7b08e6fa02bed0147cd6b0c3d51b5a8c6431bb9df4757bb71de","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-27T07:13:34Z","title_canon_sha256":"ff38968e2cd86058b512e5b0dee19f9c7188c1d6e5068728b486beb55c8f9137"},"schema_version":"1.0","source":{"id":"1702.08163","kind":"arxiv","version":4}},"canonical_sha256":"4061103765e04af4ab08e70e998ec562d6c49fbde7a0d51bad429ffa6f714568","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4061103765e04af4ab08e70e998ec562d6c49fbde7a0d51bad429ffa6f714568","first_computed_at":"2026-05-18T00:03:19.845293Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:19.845293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1ZVVOOLv8PXW7VACXnqdHQ5i7KDdL+xi2JsDWQgrDlCavADyMHLyfdd+EOk6HbIIWfL0ZIss5Pa5Xio8KNooCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:19.845818Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.08163","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:48d4a667fb2c87b1de9eff0f7fa4d5e01632c311b9945e244399d5119898ec25","sha256:666aa807827814dcc041cf7cf849b6cac782b2ea76c1f911e3bc45a2a502aa26"],"state_sha256":"6c3b481a647239b3b60df164465d104701636f3e208f8f467445635f81b83133"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hJqaNyrEsTBScMzleDDhFtavmbor0mhakV1JsvTIVaUZnlAPwjIjhu0szVbt15MfXiBNV4JrKDR7xIiKHxdFDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:43:20.992493Z","bundle_sha256":"f181e32cc3344cbf3b2ec6a8d05b32b7e637874089dfc00c227526d0e9884766"}}