{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:KD46I5WEGQZB2VID3PD2355JUC","short_pith_number":"pith:KD46I5WE","canonical_record":{"source":{"id":"1606.02392","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-06-08T04:18:52Z","cross_cats_sorted":[],"title_canon_sha256":"431d6643552d366b6eca9b22c60a351838d435b4173688cd3cba560b598933a4","abstract_canon_sha256":"aa2b69279df861cd3f6525cc5740835559726058fd649521ba283ee552036028"},"schema_version":"1.0"},"canonical_sha256":"50f9e476c434321d5503dbc7adf7a9a0bd25eecf1642f6f39dab0d4e1407b109","source":{"kind":"arxiv","id":"1606.02392","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.02392","created_at":"2026-05-18T00:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"1606.02392v2","created_at":"2026-05-18T00:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.02392","created_at":"2026-05-18T00:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"KD46I5WEGQZB","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KD46I5WEGQZB2VID","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KD46I5WE","created_at":"2026-05-18T12:30:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:KD46I5WEGQZB2VID3PD2355JUC","target":"record","payload":{"canonical_record":{"source":{"id":"1606.02392","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-06-08T04:18:52Z","cross_cats_sorted":[],"title_canon_sha256":"431d6643552d366b6eca9b22c60a351838d435b4173688cd3cba560b598933a4","abstract_canon_sha256":"aa2b69279df861cd3f6525cc5740835559726058fd649521ba283ee552036028"},"schema_version":"1.0"},"canonical_sha256":"50f9e476c434321d5503dbc7adf7a9a0bd25eecf1642f6f39dab0d4e1407b109","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:24.603786Z","signature_b64":"yuXX6RzH8EScGwjmUTrZ2ITNS1bsYIAkdXW6c5Ybb5gSB0mlaDTWk19XYXG2OGA5mKWTCZUJQm0Xiyrwr11mCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50f9e476c434321d5503dbc7adf7a9a0bd25eecf1642f6f39dab0d4e1407b109","last_reissued_at":"2026-05-18T00:49:24.603145Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:24.603145Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.02392","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":"2026-05-18T00:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iAjvf4D7OjH20Kytd+m3MBdDuwMXS/LkjvQHytesfECbuErbRG75Ibc1zaEeSpKLn0nssY48bBUPXNS0ea4ZAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T05:58:26.390591Z"},"content_sha256":"a3a4c9080b0c2d2021624c56570b83060aa24256a11d3a9acc9c1b29d97f1790","schema_version":"1.0","event_id":"sha256:a3a4c9080b0c2d2021624c56570b83060aa24256a11d3a9acc9c1b29d97f1790"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:KD46I5WEGQZB2VID3PD2355JUC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Alternative difference analysis scheme combining R-space EXAFS fit with global optimization XANES fit for X-ray transient absorption spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Fei Zhan, Haifeng Zhao, Ye Tao","submitted_at":"2016-06-08T04:18:52Z","abstract_excerpt":"Time-resolved X-ray absorption spectroscopy (TR-XAS), based on laser-pump/X-ray probe method, is powerful in capturing the change of geometrical and electronic structure of the absorbing atom upon excitation. TR-XAS data analysis is generally performed on the laser-on minus laser-off difference spectrum. Here we present a new analysis scheme for the TR-XAS difference fitting in both the Extended X-Ray Absorption Fine Structure (EXAFS) and the X-ray Absorption Near Edge Structure (XANES) region. R-space EXAFS difference fitting could quickly give main quantitative structure change of the first "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.02392","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":"2026-05-18T00:49:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ayV6HyJlBNhDEe+qBFfXi8nchC0hlvuVyO+Fa4r9MJKU9ipCOY6BClzrOFDC3r6wO2zyXtvt3KPbSgaoc1l+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T05:58:26.391172Z"},"content_sha256":"2437595ff29ef70de15ff717d7516d6e898520deadc0ebdb0609ad78ddf43e3a","schema_version":"1.0","event_id":"sha256:2437595ff29ef70de15ff717d7516d6e898520deadc0ebdb0609ad78ddf43e3a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KD46I5WEGQZB2VID3PD2355JUC/bundle.json","state_url":"https://pith.science/pith/KD46I5WEGQZB2VID3PD2355JUC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KD46I5WEGQZB2VID3PD2355JUC/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":"2026-06-07T05:58:26Z","links":{"resolver":"https://pith.science/pith/KD46I5WEGQZB2VID3PD2355JUC","bundle":"https://pith.science/pith/KD46I5WEGQZB2VID3PD2355JUC/bundle.json","state":"https://pith.science/pith/KD46I5WEGQZB2VID3PD2355JUC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KD46I5WEGQZB2VID3PD2355JUC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:KD46I5WEGQZB2VID3PD2355JUC","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":"aa2b69279df861cd3f6525cc5740835559726058fd649521ba283ee552036028","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-06-08T04:18:52Z","title_canon_sha256":"431d6643552d366b6eca9b22c60a351838d435b4173688cd3cba560b598933a4"},"schema_version":"1.0","source":{"id":"1606.02392","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.02392","created_at":"2026-05-18T00:49:24Z"},{"alias_kind":"arxiv_version","alias_value":"1606.02392v2","created_at":"2026-05-18T00:49:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.02392","created_at":"2026-05-18T00:49:24Z"},{"alias_kind":"pith_short_12","alias_value":"KD46I5WEGQZB","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_16","alias_value":"KD46I5WEGQZB2VID","created_at":"2026-05-18T12:30:25Z"},{"alias_kind":"pith_short_8","alias_value":"KD46I5WE","created_at":"2026-05-18T12:30:25Z"}],"graph_snapshots":[{"event_id":"sha256:2437595ff29ef70de15ff717d7516d6e898520deadc0ebdb0609ad78ddf43e3a","target":"graph","created_at":"2026-05-18T00:49:24Z","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":"Time-resolved X-ray absorption spectroscopy (TR-XAS), based on laser-pump/X-ray probe method, is powerful in capturing the change of geometrical and electronic structure of the absorbing atom upon excitation. TR-XAS data analysis is generally performed on the laser-on minus laser-off difference spectrum. Here we present a new analysis scheme for the TR-XAS difference fitting in both the Extended X-Ray Absorption Fine Structure (EXAFS) and the X-ray Absorption Near Edge Structure (XANES) region. R-space EXAFS difference fitting could quickly give main quantitative structure change of the first ","authors_text":"Fei Zhan, Haifeng Zhao, Ye Tao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-06-08T04:18:52Z","title":"Alternative difference analysis scheme combining R-space EXAFS fit with global optimization XANES fit for X-ray transient absorption spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.02392","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:a3a4c9080b0c2d2021624c56570b83060aa24256a11d3a9acc9c1b29d97f1790","target":"record","created_at":"2026-05-18T00:49:24Z","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":"aa2b69279df861cd3f6525cc5740835559726058fd649521ba283ee552036028","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2016-06-08T04:18:52Z","title_canon_sha256":"431d6643552d366b6eca9b22c60a351838d435b4173688cd3cba560b598933a4"},"schema_version":"1.0","source":{"id":"1606.02392","kind":"arxiv","version":2}},"canonical_sha256":"50f9e476c434321d5503dbc7adf7a9a0bd25eecf1642f6f39dab0d4e1407b109","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50f9e476c434321d5503dbc7adf7a9a0bd25eecf1642f6f39dab0d4e1407b109","first_computed_at":"2026-05-18T00:49:24.603145Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:24.603145Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yuXX6RzH8EScGwjmUTrZ2ITNS1bsYIAkdXW6c5Ybb5gSB0mlaDTWk19XYXG2OGA5mKWTCZUJQm0Xiyrwr11mCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:24.603786Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.02392","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3a4c9080b0c2d2021624c56570b83060aa24256a11d3a9acc9c1b29d97f1790","sha256:2437595ff29ef70de15ff717d7516d6e898520deadc0ebdb0609ad78ddf43e3a"],"state_sha256":"8712a6821dac2c3ee719a2339d6075aa14610afe31a9dceb6302f721e0e8f607"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A/wLORvvM7hpURbo6epEyxSbxQ6mtvuc/xOuP/76vveqmc/+bibFM9RBbYaNdZT8tgym+31y0hUKdAu0HUehBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T05:58:26.394365Z","bundle_sha256":"0b248dd9febb0d466d9bd9bb8883179e0dc54eb6d9d0d6185d8bcdc8d1548a41"}}