{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:Z6MFUC5JLUZ4SUHGFGPS3DRTDZ","short_pith_number":"pith:Z6MFUC5J","canonical_record":{"source":{"id":"1902.02673","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-06T14:57:49Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"3c96a39776edce6eae0f4d5ec47b172463dd775ea13a7cba483062e6fa8972f4","abstract_canon_sha256":"c9a2e0a6c99a1ec1d51000863b0bacb9949652703b91fd6cdb8e4335606d0146"},"schema_version":"1.0"},"canonical_sha256":"cf985a0ba95d33c950e6299f2d8e331e6d4f007bf44378cffcabe4c6bbe9eae5","source":{"kind":"arxiv","id":"1902.02673","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02673","created_at":"2026-05-17T23:46:12Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02673v2","created_at":"2026-05-17T23:46:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02673","created_at":"2026-05-17T23:46:12Z"},{"alias_kind":"pith_short_12","alias_value":"Z6MFUC5JLUZ4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"Z6MFUC5JLUZ4SUHG","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"Z6MFUC5J","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:Z6MFUC5JLUZ4SUHGFGPS3DRTDZ","target":"record","payload":{"canonical_record":{"source":{"id":"1902.02673","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-06T14:57:49Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"3c96a39776edce6eae0f4d5ec47b172463dd775ea13a7cba483062e6fa8972f4","abstract_canon_sha256":"c9a2e0a6c99a1ec1d51000863b0bacb9949652703b91fd6cdb8e4335606d0146"},"schema_version":"1.0"},"canonical_sha256":"cf985a0ba95d33c950e6299f2d8e331e6d4f007bf44378cffcabe4c6bbe9eae5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:12.317863Z","signature_b64":"qfpQo2nXQnj4jRqRG1rxOuLydXd569uIdqplas75mx21PJn967q0xA7G0G2UXZDYU2W/Wg/UF0l8tjQT4VFYDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf985a0ba95d33c950e6299f2d8e331e6d4f007bf44378cffcabe4c6bbe9eae5","last_reissued_at":"2026-05-17T23:46:12.317358Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:12.317358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.02673","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":"2026-05-17T23:46:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0bC+w1cHD9Jl2RsXV1JO4I2SAk7z0J+wy3vnhM/Q1aMF3jitZsBeh5lVXjOqxGp9OIyq15QlM0YcJ9J41/vNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T09:29:07.794433Z"},"content_sha256":"38d6ff7f112b1a7b9930c1190f211b1a549890bc8860ee6cc8692650ab5b5a0d","schema_version":"1.0","event_id":"sha256:38d6ff7f112b1a7b9930c1190f211b1a549890bc8860ee6cc8692650ab5b5a0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:Z6MFUC5JLUZ4SUHGFGPS3DRTDZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrafast dynamics and surface plasmon properties of Silicon upon irradiation with mid-infrared femtosecond laser pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.optics","authors_text":"E. Petrakakis, E. Stratakis, G. D. Tsibidis","submitted_at":"2019-02-06T14:57:49Z","abstract_excerpt":"We present a theoretical investigation of the yet unexplored ultrafast processes and dynamics of the produced excited carriers upon irradiation of Silicon with femtosecond pulsed lasers in the mid-infrared (mid-IR) spectral region. The evolution of the carrier density and thermal response of the electron-hole and lattice subsystems are analysed for various wavelengths {\\lambda}L in the range between 2.2 {\\mu}m and 3.3 {\\mu}m where the influence of two and three-photon absorption mechanisms is explored. The role of induced Kerr effect is highlighted and it manifests a more pronounced influence "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02673","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":"2026-05-17T23:46:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pHTecRBGxIVgQq189rfaFQFp+iabwUEQrvC9hld/3aPfn+BrXcFjywSnI44d23A2Ln9QZ7QCFt3Xe0d4z3OODw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T09:29:07.795144Z"},"content_sha256":"ede611e720aac446284f4d3fa5925e67e019fb3e1a47766c84fa16cef72dc2af","schema_version":"1.0","event_id":"sha256:ede611e720aac446284f4d3fa5925e67e019fb3e1a47766c84fa16cef72dc2af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z6MFUC5JLUZ4SUHGFGPS3DRTDZ/bundle.json","state_url":"https://pith.science/pith/Z6MFUC5JLUZ4SUHGFGPS3DRTDZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z6MFUC5JLUZ4SUHGFGPS3DRTDZ/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":"2026-05-23T09:29:07Z","links":{"resolver":"https://pith.science/pith/Z6MFUC5JLUZ4SUHGFGPS3DRTDZ","bundle":"https://pith.science/pith/Z6MFUC5JLUZ4SUHGFGPS3DRTDZ/bundle.json","state":"https://pith.science/pith/Z6MFUC5JLUZ4SUHGFGPS3DRTDZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z6MFUC5JLUZ4SUHGFGPS3DRTDZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:Z6MFUC5JLUZ4SUHGFGPS3DRTDZ","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":"c9a2e0a6c99a1ec1d51000863b0bacb9949652703b91fd6cdb8e4335606d0146","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-06T14:57:49Z","title_canon_sha256":"3c96a39776edce6eae0f4d5ec47b172463dd775ea13a7cba483062e6fa8972f4"},"schema_version":"1.0","source":{"id":"1902.02673","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02673","created_at":"2026-05-17T23:46:12Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02673v2","created_at":"2026-05-17T23:46:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02673","created_at":"2026-05-17T23:46:12Z"},{"alias_kind":"pith_short_12","alias_value":"Z6MFUC5JLUZ4","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"Z6MFUC5JLUZ4SUHG","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"Z6MFUC5J","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:ede611e720aac446284f4d3fa5925e67e019fb3e1a47766c84fa16cef72dc2af","target":"graph","created_at":"2026-05-17T23:46:12Z","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 theoretical investigation of the yet unexplored ultrafast processes and dynamics of the produced excited carriers upon irradiation of Silicon with femtosecond pulsed lasers in the mid-infrared (mid-IR) spectral region. The evolution of the carrier density and thermal response of the electron-hole and lattice subsystems are analysed for various wavelengths {\\lambda}L in the range between 2.2 {\\mu}m and 3.3 {\\mu}m where the influence of two and three-photon absorption mechanisms is explored. The role of induced Kerr effect is highlighted and it manifests a more pronounced influence ","authors_text":"E. Petrakakis, E. Stratakis, G. D. Tsibidis","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-06T14:57:49Z","title":"Ultrafast dynamics and surface plasmon properties of Silicon upon irradiation with mid-infrared femtosecond laser pulses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02673","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":"sha256:38d6ff7f112b1a7b9930c1190f211b1a549890bc8860ee6cc8692650ab5b5a0d","target":"record","created_at":"2026-05-17T23:46:12Z","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":"c9a2e0a6c99a1ec1d51000863b0bacb9949652703b91fd6cdb8e4335606d0146","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-06T14:57:49Z","title_canon_sha256":"3c96a39776edce6eae0f4d5ec47b172463dd775ea13a7cba483062e6fa8972f4"},"schema_version":"1.0","source":{"id":"1902.02673","kind":"arxiv","version":2}},"canonical_sha256":"cf985a0ba95d33c950e6299f2d8e331e6d4f007bf44378cffcabe4c6bbe9eae5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf985a0ba95d33c950e6299f2d8e331e6d4f007bf44378cffcabe4c6bbe9eae5","first_computed_at":"2026-05-17T23:46:12.317358Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:12.317358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qfpQo2nXQnj4jRqRG1rxOuLydXd569uIdqplas75mx21PJn967q0xA7G0G2UXZDYU2W/Wg/UF0l8tjQT4VFYDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:12.317863Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.02673","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:38d6ff7f112b1a7b9930c1190f211b1a549890bc8860ee6cc8692650ab5b5a0d","sha256:ede611e720aac446284f4d3fa5925e67e019fb3e1a47766c84fa16cef72dc2af"],"state_sha256":"8df5140a0094babc3f8902aa31194f6c585e65223ed1a1cf6132ba7135484306"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yV9pgNhhfCGe15sIXR/5JxGMgGrH0kP9lMhx94V2hS/aAWcuJlIvJUj2ywiKL8YvLcyQhhR2V4p2vVPgSqwHBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T09:29:07.799044Z","bundle_sha256":"5f692fbfcd25be38bd4a71445ecb4a5aba98b856182b8e1f70d9df6ba0d084a5"}}