{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:TURS25HLQOCVFXYOGSOLRNDXFM","short_pith_number":"pith:TURS25HL","canonical_record":{"source":{"id":"2108.10605","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-08-24T09:41:22Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"a702e666ed989e9f27bb1cbfc6fcc397fb487e64b2548bce5a3f88df4bcad2c5","abstract_canon_sha256":"a3f452ec125599474e594b354b23cc54305cf3a17149b14e63202de5948bfee4"},"schema_version":"1.0"},"canonical_sha256":"9d232d74eb838552df0e349cb8b4772b3c73b122da91ee9949666a9c487979e5","source":{"kind":"arxiv","id":"2108.10605","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.10605","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"arxiv_version","alias_value":"2108.10605v1","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.10605","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"pith_short_12","alias_value":"TURS25HLQOCV","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"pith_short_16","alias_value":"TURS25HLQOCVFXYO","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"pith_short_8","alias_value":"TURS25HL","created_at":"2026-07-05T04:16:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:TURS25HLQOCVFXYOGSOLRNDXFM","target":"record","payload":{"canonical_record":{"source":{"id":"2108.10605","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-08-24T09:41:22Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"a702e666ed989e9f27bb1cbfc6fcc397fb487e64b2548bce5a3f88df4bcad2c5","abstract_canon_sha256":"a3f452ec125599474e594b354b23cc54305cf3a17149b14e63202de5948bfee4"},"schema_version":"1.0"},"canonical_sha256":"9d232d74eb838552df0e349cb8b4772b3c73b122da91ee9949666a9c487979e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:16:52.453932Z","signature_b64":"Rj7lfSchQ+jJQ7BpU6ANluQzJSmhmLFB+IX4kZk6sHPQDwW5Unxwz4o9qEn6H6vDoM/ggT6Eg2vuFK8meWduBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d232d74eb838552df0e349cb8b4772b3c73b122da91ee9949666a9c487979e5","last_reissued_at":"2026-07-05T04:16:52.453539Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:16:52.453539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.10605","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":"2026-07-05T04:16:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fv7cNicOv3urkCHDjBVfUupfOVgbjtKViiyVheDIQiv16UwtUgo4vQgjuD2Cz9qsznWVZjGFSOlwbzBxHfKBDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T19:41:34.002058Z"},"content_sha256":"9d8b60666201c46b1448b3f7379a67b1e45415823bffd327eda93f9a5c734d16","schema_version":"1.0","event_id":"sha256:9d8b60666201c46b1448b3f7379a67b1e45415823bffd327eda93f9a5c734d16"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:TURS25HLQOCVFXYOGSOLRNDXFM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extracting Quantitative Dielectric Properties from Pump-Probe Spectroscopy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Akshay Rao, Arjun Ashoka, Aswathy V. Girija, Charles G. Smith, Chih-Hsuan Lu, Chong Chen, Christoph Schnedermann, David Ritchie, Hope Bretscher, Justin M. Hodgkiss, Kai Chen, Michael B. Price, Ronnie R. Tamming, Sachin Dev Verma, Shang-Da Yang","submitted_at":"2021-08-24T09:41:22Z","abstract_excerpt":"Optical pump-probe spectroscopy is a powerful tool for the study of non-equilibrium electronic dynamics and finds wide applications across a range of fields, from physics and chemistry to material science and biology. However, a shortcoming of conventional pump-probe spectroscopy is that photoinduced changes in transmission, reflection and scattering can simultaneously contribute to the measured differential spectra, leading to ambiguities in assigning the origin of spectral signatures and ruling out quantitative interpretation of the spectra. Ideally, these methods would measure the underlyin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.10605","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.10605/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:16:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ZCqFIJJNAGlOzpa0+hTpbF/Ol1QGDq5ogL1Zgqe7i2Ziu1dF06dfOWDz1sTotopoO1MnlSZdG6TuwhUXks5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T19:41:34.004766Z"},"content_sha256":"2987680e8ab6a20ab5ad41fc787af013303bbfdc68ea8caa9ad231a05cba9e22","schema_version":"1.0","event_id":"sha256:2987680e8ab6a20ab5ad41fc787af013303bbfdc68ea8caa9ad231a05cba9e22"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TURS25HLQOCVFXYOGSOLRNDXFM/bundle.json","state_url":"https://pith.science/pith/TURS25HLQOCVFXYOGSOLRNDXFM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TURS25HLQOCVFXYOGSOLRNDXFM/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":"2026-07-31T19:41:34Z","links":{"resolver":"https://pith.science/pith/TURS25HLQOCVFXYOGSOLRNDXFM","bundle":"https://pith.science/pith/TURS25HLQOCVFXYOGSOLRNDXFM/bundle.json","state":"https://pith.science/pith/TURS25HLQOCVFXYOGSOLRNDXFM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TURS25HLQOCVFXYOGSOLRNDXFM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:TURS25HLQOCVFXYOGSOLRNDXFM","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":"a3f452ec125599474e594b354b23cc54305cf3a17149b14e63202de5948bfee4","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-08-24T09:41:22Z","title_canon_sha256":"a702e666ed989e9f27bb1cbfc6fcc397fb487e64b2548bce5a3f88df4bcad2c5"},"schema_version":"1.0","source":{"id":"2108.10605","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.10605","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"arxiv_version","alias_value":"2108.10605v1","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.10605","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"pith_short_12","alias_value":"TURS25HLQOCV","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"pith_short_16","alias_value":"TURS25HLQOCVFXYO","created_at":"2026-07-05T04:16:52Z"},{"alias_kind":"pith_short_8","alias_value":"TURS25HL","created_at":"2026-07-05T04:16:52Z"}],"graph_snapshots":[{"event_id":"sha256:2987680e8ab6a20ab5ad41fc787af013303bbfdc68ea8caa9ad231a05cba9e22","target":"graph","created_at":"2026-07-05T04:16:52Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2108.10605/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Optical pump-probe spectroscopy is a powerful tool for the study of non-equilibrium electronic dynamics and finds wide applications across a range of fields, from physics and chemistry to material science and biology. However, a shortcoming of conventional pump-probe spectroscopy is that photoinduced changes in transmission, reflection and scattering can simultaneously contribute to the measured differential spectra, leading to ambiguities in assigning the origin of spectral signatures and ruling out quantitative interpretation of the spectra. Ideally, these methods would measure the underlyin","authors_text":"Akshay Rao, Arjun Ashoka, Aswathy V. Girija, Charles G. Smith, Chih-Hsuan Lu, Chong Chen, Christoph Schnedermann, David Ritchie, Hope Bretscher, Justin M. Hodgkiss, Kai Chen, Michael B. Price, Ronnie R. Tamming, Sachin Dev Verma, Shang-Da Yang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-08-24T09:41:22Z","title":"Extracting Quantitative Dielectric Properties from Pump-Probe Spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.10605","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":"sha256:9d8b60666201c46b1448b3f7379a67b1e45415823bffd327eda93f9a5c734d16","target":"record","created_at":"2026-07-05T04:16:52Z","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":"a3f452ec125599474e594b354b23cc54305cf3a17149b14e63202de5948bfee4","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2021-08-24T09:41:22Z","title_canon_sha256":"a702e666ed989e9f27bb1cbfc6fcc397fb487e64b2548bce5a3f88df4bcad2c5"},"schema_version":"1.0","source":{"id":"2108.10605","kind":"arxiv","version":1}},"canonical_sha256":"9d232d74eb838552df0e349cb8b4772b3c73b122da91ee9949666a9c487979e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d232d74eb838552df0e349cb8b4772b3c73b122da91ee9949666a9c487979e5","first_computed_at":"2026-07-05T04:16:52.453539Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:16:52.453539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Rj7lfSchQ+jJQ7BpU6ANluQzJSmhmLFB+IX4kZk6sHPQDwW5Unxwz4o9qEn6H6vDoM/ggT6Eg2vuFK8meWduBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:16:52.453932Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.10605","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d8b60666201c46b1448b3f7379a67b1e45415823bffd327eda93f9a5c734d16","sha256:2987680e8ab6a20ab5ad41fc787af013303bbfdc68ea8caa9ad231a05cba9e22"],"state_sha256":"74913b4ebbd98948501a64090c316e4ba1452ebaf1ddc34c3e977042c36a9a22"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WyJDodHAFeIB+o6DO03p21c+fJ78vGG/+nfWEVQldFCqy9yGIv+ymx6xsR5W2uDsJl+LOJLQFK0VBRKyHkioBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T19:41:34.011962Z","bundle_sha256":"a3574fc582261c3cfcf49e3a3d670aef90047db467ae1443285695f00cdc694e"}}