{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:MQOP6W25BGN2T6ORYKQW6YROKD","short_pith_number":"pith:MQOP6W25","canonical_record":{"source":{"id":"2210.02739","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2022-10-06T08:06:22Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"e4e43599e9ef2a38c736c5da8618e2a5aa6fd70993d92601bfa7e4f6e85a7b83","abstract_canon_sha256":"a6a0095e6128d441cdfda817064d52f76e150702d3cc9a2b03a3d3f9fd568631"},"schema_version":"1.0"},"canonical_sha256":"641cff5b5d099ba9f9d1c2a16f622e50d3b2eceae533fc40ed2f65519dd01951","source":{"kind":"arxiv","id":"2210.02739","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.02739","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"arxiv_version","alias_value":"2210.02739v1","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.02739","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"pith_short_12","alias_value":"MQOP6W25BGN2","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"pith_short_16","alias_value":"MQOP6W25BGN2T6OR","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"pith_short_8","alias_value":"MQOP6W25","created_at":"2026-07-05T05:03:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:MQOP6W25BGN2T6ORYKQW6YROKD","target":"record","payload":{"canonical_record":{"source":{"id":"2210.02739","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2022-10-06T08:06:22Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"e4e43599e9ef2a38c736c5da8618e2a5aa6fd70993d92601bfa7e4f6e85a7b83","abstract_canon_sha256":"a6a0095e6128d441cdfda817064d52f76e150702d3cc9a2b03a3d3f9fd568631"},"schema_version":"1.0"},"canonical_sha256":"641cff5b5d099ba9f9d1c2a16f622e50d3b2eceae533fc40ed2f65519dd01951","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:03:56.598699Z","signature_b64":"EsmbE71jMRefYVZFTopPNqF7xcp+0teRyYWl1Hh60LFE/pMV4fgNWS9iNMU7ypk5dVMVeRsHU3OGh/RXtXVVAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"641cff5b5d099ba9f9d1c2a16f622e50d3b2eceae533fc40ed2f65519dd01951","last_reissued_at":"2026-07-05T05:03:56.598264Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:03:56.598264Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2210.02739","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":"2026-07-05T05:03:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WIlWpgt1WFEO2RFa6ykoSnCHAb1HP64VthL3xABvbs3s1cabkm6KkrBP6No/FX4c9kxlIrJZfJC+eTTk2vfiAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T15:50:23.267287Z"},"content_sha256":"1d8a23d4c19f5c567d7055e74f955f376be19445a7920a57711fb85d1115d9a9","schema_version":"1.0","event_id":"sha256:1d8a23d4c19f5c567d7055e74f955f376be19445a7920a57711fb85d1115d9a9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:MQOP6W25BGN2T6ORYKQW6YROKD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High energy-resolution transient ghost absorption spectroscopy","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"physics.optics","authors_text":"Alok Kumar Tripathi, Dario De Angelis, Edward Strizhevsky, Emanuele Pedersoli, Flavio Capotondi, Ivan A. Vartanyants, Kevin C. Prince, Luca Giannessi, Matteo Pancaldi, Or Sefi, Sharon Shwartz, Yishai Klein, Young Yong Kim","submitted_at":"2022-10-06T08:06:22Z","abstract_excerpt":"We demonstrate the measurement of ultrafast dynamics using ghost spectroscopy and a pump-probe approach with an optical pump and a short-wavelength radiation probe. The ghost spectroscopy approach is used to overcome the challenge of the strong intensity and spectrum fluctuations at free-electron lasers and to provide high -spectral resolution, which enables the measurement of small energy shifts in the absorption spectrum. We exploit the high resolution to explore the dynamics of the charge carrier excitations and relaxations and their impact on the photoinduced structural changes in silicon "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.02739","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/2210.02739/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":"2026-07-05T05:03:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wEQIc/KS8v2x7jQpCH0Ujt3xit+AIe5nDQNcs0EzttUurpcRrSHOjSRMlCaylMtUipVMo7V+KX4eAU8DtJ8ACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T15:50:23.267599Z"},"content_sha256":"9e3a8f7373c9d375dcfe549c443184a7231ffbe88be5dc87d0fa21a184d4b901","schema_version":"1.0","event_id":"sha256:9e3a8f7373c9d375dcfe549c443184a7231ffbe88be5dc87d0fa21a184d4b901"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MQOP6W25BGN2T6ORYKQW6YROKD/bundle.json","state_url":"https://pith.science/pith/MQOP6W25BGN2T6ORYKQW6YROKD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MQOP6W25BGN2T6ORYKQW6YROKD/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":"2026-07-31T15:50:23Z","links":{"resolver":"https://pith.science/pith/MQOP6W25BGN2T6ORYKQW6YROKD","bundle":"https://pith.science/pith/MQOP6W25BGN2T6ORYKQW6YROKD/bundle.json","state":"https://pith.science/pith/MQOP6W25BGN2T6ORYKQW6YROKD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MQOP6W25BGN2T6ORYKQW6YROKD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:MQOP6W25BGN2T6ORYKQW6YROKD","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":"a6a0095e6128d441cdfda817064d52f76e150702d3cc9a2b03a3d3f9fd568631","cross_cats_sorted":["physics.atom-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2022-10-06T08:06:22Z","title_canon_sha256":"e4e43599e9ef2a38c736c5da8618e2a5aa6fd70993d92601bfa7e4f6e85a7b83"},"schema_version":"1.0","source":{"id":"2210.02739","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.02739","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"arxiv_version","alias_value":"2210.02739v1","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.02739","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"pith_short_12","alias_value":"MQOP6W25BGN2","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"pith_short_16","alias_value":"MQOP6W25BGN2T6OR","created_at":"2026-07-05T05:03:56Z"},{"alias_kind":"pith_short_8","alias_value":"MQOP6W25","created_at":"2026-07-05T05:03:56Z"}],"graph_snapshots":[{"event_id":"sha256:9e3a8f7373c9d375dcfe549c443184a7231ffbe88be5dc87d0fa21a184d4b901","target":"graph","created_at":"2026-07-05T05:03:56Z","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/2210.02739/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate the measurement of ultrafast dynamics using ghost spectroscopy and a pump-probe approach with an optical pump and a short-wavelength radiation probe. The ghost spectroscopy approach is used to overcome the challenge of the strong intensity and spectrum fluctuations at free-electron lasers and to provide high -spectral resolution, which enables the measurement of small energy shifts in the absorption spectrum. We exploit the high resolution to explore the dynamics of the charge carrier excitations and relaxations and their impact on the photoinduced structural changes in silicon ","authors_text":"Alok Kumar Tripathi, Dario De Angelis, Edward Strizhevsky, Emanuele Pedersoli, Flavio Capotondi, Ivan A. Vartanyants, Kevin C. Prince, Luca Giannessi, Matteo Pancaldi, Or Sefi, Sharon Shwartz, Yishai Klein, Young Yong Kim","cross_cats":["physics.atom-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2022-10-06T08:06:22Z","title":"High energy-resolution transient ghost absorption spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.02739","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":"sha256:1d8a23d4c19f5c567d7055e74f955f376be19445a7920a57711fb85d1115d9a9","target":"record","created_at":"2026-07-05T05:03:56Z","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":"a6a0095e6128d441cdfda817064d52f76e150702d3cc9a2b03a3d3f9fd568631","cross_cats_sorted":["physics.atom-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.optics","submitted_at":"2022-10-06T08:06:22Z","title_canon_sha256":"e4e43599e9ef2a38c736c5da8618e2a5aa6fd70993d92601bfa7e4f6e85a7b83"},"schema_version":"1.0","source":{"id":"2210.02739","kind":"arxiv","version":1}},"canonical_sha256":"641cff5b5d099ba9f9d1c2a16f622e50d3b2eceae533fc40ed2f65519dd01951","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"641cff5b5d099ba9f9d1c2a16f622e50d3b2eceae533fc40ed2f65519dd01951","first_computed_at":"2026-07-05T05:03:56.598264Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:03:56.598264Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EsmbE71jMRefYVZFTopPNqF7xcp+0teRyYWl1Hh60LFE/pMV4fgNWS9iNMU7ypk5dVMVeRsHU3OGh/RXtXVVAg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:03:56.598699Z","signed_message":"canonical_sha256_bytes"},"source_id":"2210.02739","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d8a23d4c19f5c567d7055e74f955f376be19445a7920a57711fb85d1115d9a9","sha256:9e3a8f7373c9d375dcfe549c443184a7231ffbe88be5dc87d0fa21a184d4b901"],"state_sha256":"878666ee5049e4811c06920274b3ec194cdbef9ecc0cce52ec23a314db154c86"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"djxITm4SUBXAYn+WFgbrYEhER8p5g5qMAE1acmCCE+bpywoBonrVD2KwOnFnN/CNVAqj8ss4sUGHN9+VXeuWDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T15:50:23.270429Z","bundle_sha256":"85c57bb162f0dff5e626dcc50db4999a7b9f1195e3258a715a1c41eb2dc7f73b"}}