{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:KHLCKGYD4GUPDTBMMIK7S5RRER","short_pith_number":"pith:KHLCKGYD","canonical_record":{"source":{"id":"2501.05121","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-09T10:24:29Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5b327aa9c2275290dd616031ce4a40fef4144ee2ea217ddd436a81cb8eeb7906","abstract_canon_sha256":"b56e5bae559ce82d5e5fcfacb496071db07cd1fb5223778d8d393296e2b2a90e"},"schema_version":"1.0"},"canonical_sha256":"51d6251b03e1a8f1cc2c6215f976312446226551c72c60cc8fc8d722157ec0e2","source":{"kind":"arxiv","id":"2501.05121","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.05121","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"arxiv_version","alias_value":"2501.05121v1","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.05121","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"pith_short_12","alias_value":"KHLCKGYD4GUP","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"pith_short_16","alias_value":"KHLCKGYD4GUPDTBM","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"pith_short_8","alias_value":"KHLCKGYD","created_at":"2026-07-05T09:59:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:KHLCKGYD4GUPDTBMMIK7S5RRER","target":"record","payload":{"canonical_record":{"source":{"id":"2501.05121","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-09T10:24:29Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"5b327aa9c2275290dd616031ce4a40fef4144ee2ea217ddd436a81cb8eeb7906","abstract_canon_sha256":"b56e5bae559ce82d5e5fcfacb496071db07cd1fb5223778d8d393296e2b2a90e"},"schema_version":"1.0"},"canonical_sha256":"51d6251b03e1a8f1cc2c6215f976312446226551c72c60cc8fc8d722157ec0e2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:59:04.708449Z","signature_b64":"aZfEX9rzoepcpcQ0YEpXa+FHAd6+BN23cbbp2ZVf9xwhUHXLu9wjygvI/hvunzBrxo3MPZ1r3aCarIvWQ7QCDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"51d6251b03e1a8f1cc2c6215f976312446226551c72c60cc8fc8d722157ec0e2","last_reissued_at":"2026-07-05T09:59:04.707935Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:59:04.707935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.05121","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":"2026-07-05T09:59:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nN5VLSGs7e4DACWztnZSaJtdJwa1nljKdJAMD8kOJsXt0zw0UtrBhBuECdFL4KDsdiRkS2ETJPhhHyGMHUcGCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T11:44:35.021733Z"},"content_sha256":"517f611323e3be806f1eb2d3fdc0728fea8aa3855b22250c9a3e6c418ae21c56","schema_version":"1.0","event_id":"sha256:517f611323e3be806f1eb2d3fdc0728fea8aa3855b22250c9a3e6c418ae21c56"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:KHLCKGYD4GUPDTBMMIK7S5RRER","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving signal-to-noise ratios in pump-probe spectroscopy on light-sensitive samples by adapting pulse repetition rates","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.optics","authors_text":"Komal Chaudhary, Maksym Illienko, Matthias C. Velsink, Stefan Witte","submitted_at":"2025-01-09T10:24:29Z","abstract_excerpt":"Ultrafast optical pump-probe spectroscopy is a powerful tool to study dynamics in solid materials on femto- and picosecond timescales. In such experiments, a pump pulse induces dynamics inside a sample by impulsive light-matter interaction, resulting in dynamics that can be detected using a time-delayed probe pulse. In addition to the desired dynamics, the initial interaction may also lead to unwanted effects that may result in irreversible changes and even damage. Therefore, the achievable signal strength is often limited by the pumping conditions that a sample can sustain. Here we investigat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.05121","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/2501.05121/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":"2026-07-05T09:59:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e5Xj92p+IlTwgNR/QYoehrp5Xm4G1zdpC/6xYLO+jLhJIy9iN9fsoXR+00F49dpTWZSNuVGJHyFb5riwlWprDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T11:44:35.022102Z"},"content_sha256":"84b996c081645ce043603deb0c5792d9ad641d259a8f450ae88b4406c8a861f5","schema_version":"1.0","event_id":"sha256:84b996c081645ce043603deb0c5792d9ad641d259a8f450ae88b4406c8a861f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KHLCKGYD4GUPDTBMMIK7S5RRER/bundle.json","state_url":"https://pith.science/pith/KHLCKGYD4GUPDTBMMIK7S5RRER/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KHLCKGYD4GUPDTBMMIK7S5RRER/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":"2026-07-25T11:44:35Z","links":{"resolver":"https://pith.science/pith/KHLCKGYD4GUPDTBMMIK7S5RRER","bundle":"https://pith.science/pith/KHLCKGYD4GUPDTBMMIK7S5RRER/bundle.json","state":"https://pith.science/pith/KHLCKGYD4GUPDTBMMIK7S5RRER/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KHLCKGYD4GUPDTBMMIK7S5RRER/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:KHLCKGYD4GUPDTBMMIK7S5RRER","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":"b56e5bae559ce82d5e5fcfacb496071db07cd1fb5223778d8d393296e2b2a90e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-09T10:24:29Z","title_canon_sha256":"5b327aa9c2275290dd616031ce4a40fef4144ee2ea217ddd436a81cb8eeb7906"},"schema_version":"1.0","source":{"id":"2501.05121","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.05121","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"arxiv_version","alias_value":"2501.05121v1","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.05121","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"pith_short_12","alias_value":"KHLCKGYD4GUP","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"pith_short_16","alias_value":"KHLCKGYD4GUPDTBM","created_at":"2026-07-05T09:59:04Z"},{"alias_kind":"pith_short_8","alias_value":"KHLCKGYD","created_at":"2026-07-05T09:59:04Z"}],"graph_snapshots":[{"event_id":"sha256:84b996c081645ce043603deb0c5792d9ad641d259a8f450ae88b4406c8a861f5","target":"graph","created_at":"2026-07-05T09:59:04Z","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/2501.05121/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ultrafast optical pump-probe spectroscopy is a powerful tool to study dynamics in solid materials on femto- and picosecond timescales. In such experiments, a pump pulse induces dynamics inside a sample by impulsive light-matter interaction, resulting in dynamics that can be detected using a time-delayed probe pulse. In addition to the desired dynamics, the initial interaction may also lead to unwanted effects that may result in irreversible changes and even damage. Therefore, the achievable signal strength is often limited by the pumping conditions that a sample can sustain. Here we investigat","authors_text":"Komal Chaudhary, Maksym Illienko, Matthias C. Velsink, Stefan Witte","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-09T10:24:29Z","title":"Improving signal-to-noise ratios in pump-probe spectroscopy on light-sensitive samples by adapting pulse repetition rates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.05121","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":"sha256:517f611323e3be806f1eb2d3fdc0728fea8aa3855b22250c9a3e6c418ae21c56","target":"record","created_at":"2026-07-05T09:59:04Z","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":"b56e5bae559ce82d5e5fcfacb496071db07cd1fb5223778d8d393296e2b2a90e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-01-09T10:24:29Z","title_canon_sha256":"5b327aa9c2275290dd616031ce4a40fef4144ee2ea217ddd436a81cb8eeb7906"},"schema_version":"1.0","source":{"id":"2501.05121","kind":"arxiv","version":1}},"canonical_sha256":"51d6251b03e1a8f1cc2c6215f976312446226551c72c60cc8fc8d722157ec0e2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51d6251b03e1a8f1cc2c6215f976312446226551c72c60cc8fc8d722157ec0e2","first_computed_at":"2026-07-05T09:59:04.707935Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:59:04.707935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aZfEX9rzoepcpcQ0YEpXa+FHAd6+BN23cbbp2ZVf9xwhUHXLu9wjygvI/hvunzBrxo3MPZ1r3aCarIvWQ7QCDg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:59:04.708449Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.05121","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:517f611323e3be806f1eb2d3fdc0728fea8aa3855b22250c9a3e6c418ae21c56","sha256:84b996c081645ce043603deb0c5792d9ad641d259a8f450ae88b4406c8a861f5"],"state_sha256":"6c660b07add152c59d9fe67d8a92524dea28c1e12d84a15b3546a48c4a29929c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"13tO6mYXg9xKeCc+8lLd9pO/oqAH2qafEa3FXwscMnhn+6ew9Q7dB0yC4kaX52DSZGuMgn72/GP5smVI/Dv5Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-25T11:44:35.024214Z","bundle_sha256":"58ed78eb6408ca2338d804d3ea526cccdc16f5fcc4ad1acff24f75fd2a75c2eb"}}