{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:UCKHBUQI24UMU3YFKU5534FETD","short_pith_number":"pith:UCKHBUQI","canonical_record":{"source":{"id":"2305.16067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-05-25T13:57:38Z","cross_cats_sorted":[],"title_canon_sha256":"26aa54d09ee109145ddfa8f6f98dffdd201abb9e44a6c32d063e66adfbf41adc","abstract_canon_sha256":"f4a28248b2bb8265accc6a5dfcaa2851239c01c87f8c5500d68dcad9c35c8437"},"schema_version":"1.0"},"canonical_sha256":"a09470d208d728ca6f05553bddf0a498f3f4b1d6d1efbbec77801a93a351bfba","source":{"kind":"arxiv","id":"2305.16067","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.16067","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"arxiv_version","alias_value":"2305.16067v1","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.16067","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"pith_short_12","alias_value":"UCKHBUQI24UM","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"pith_short_16","alias_value":"UCKHBUQI24UMU3YF","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"pith_short_8","alias_value":"UCKHBUQI","created_at":"2026-07-05T06:13:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:UCKHBUQI24UMU3YFKU5534FETD","target":"record","payload":{"canonical_record":{"source":{"id":"2305.16067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-05-25T13:57:38Z","cross_cats_sorted":[],"title_canon_sha256":"26aa54d09ee109145ddfa8f6f98dffdd201abb9e44a6c32d063e66adfbf41adc","abstract_canon_sha256":"f4a28248b2bb8265accc6a5dfcaa2851239c01c87f8c5500d68dcad9c35c8437"},"schema_version":"1.0"},"canonical_sha256":"a09470d208d728ca6f05553bddf0a498f3f4b1d6d1efbbec77801a93a351bfba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:13:59.114521Z","signature_b64":"0SAc2NqhrWS2J4Z+eQNL4mqFySwEkSTL5OaM/oJnoiWDQL5RwN5YFhMUBZoDwMSJilm+mBILrXWzbfUhuq7FDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a09470d208d728ca6f05553bddf0a498f3f4b1d6d1efbbec77801a93a351bfba","last_reissued_at":"2026-07-05T06:13:59.114162Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:13:59.114162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2305.16067","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":"2026-07-05T06:13:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tug4VPHA+h9AAKXq7vV/APIxPIIFBUxW5MjHTxkq2JOVcT5Fy+hjbeprXMqwJx7I6mP8/Abkd198XMi16Y3YCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:43:21.974095Z"},"content_sha256":"752290ed1cdb8086d00951eeb976f1f949f9708afaff53624f4fd5792babdce3","schema_version":"1.0","event_id":"sha256:752290ed1cdb8086d00951eeb976f1f949f9708afaff53624f4fd5792babdce3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:UCKHBUQI24UMU3YFKU5534FETD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectral Peak Recovery in Parametrically Amplified THz-Repetition-Rate Bursts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Andrius Baltu\\v{s}ka, Audrius Pug\\v{z}lys, Edgar Kaksis, Markus Zeiler, Matthias Schneller, Tobias Fl\\\"ory, Vinzenz Stummer","submitted_at":"2023-05-25T13:57:38Z","abstract_excerpt":"Multi-photon resonant spectroscopies require tunable narrowband excitation to deliver spectral selectivity and, simultaneously, high temporal intensity to drive a nonlinear-optical process. These contradictory requirements are achievable with bursts of ultrashort pulses, which provides both high intensity and tunable narrowband peaks in the frequency domain arising from spectral interference. However, femtosecond pulse bursts need special attention during their amplification [Optica 7, 1758 (2020)], which requires spectral peak suppression to increase the energy safely extractable from a chirp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.16067","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/2305.16067/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":"2026-07-05T06:13:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MB3SacE3B1UypY0DuWmVyFFrxIoxZGlwVikGKvQYNqTAXtW/35W/uC2G63LYYo7yPGHop6UBVV1pWEmQu208AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:43:21.974451Z"},"content_sha256":"aceaf2175088d72805aaa964b4f8fbc207a18644cef1326ba14fc6ca7d8b3fb0","schema_version":"1.0","event_id":"sha256:aceaf2175088d72805aaa964b4f8fbc207a18644cef1326ba14fc6ca7d8b3fb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UCKHBUQI24UMU3YFKU5534FETD/bundle.json","state_url":"https://pith.science/pith/UCKHBUQI24UMU3YFKU5534FETD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UCKHBUQI24UMU3YFKU5534FETD/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":"2026-08-01T07:43:21Z","links":{"resolver":"https://pith.science/pith/UCKHBUQI24UMU3YFKU5534FETD","bundle":"https://pith.science/pith/UCKHBUQI24UMU3YFKU5534FETD/bundle.json","state":"https://pith.science/pith/UCKHBUQI24UMU3YFKU5534FETD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UCKHBUQI24UMU3YFKU5534FETD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:UCKHBUQI24UMU3YFKU5534FETD","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":"f4a28248b2bb8265accc6a5dfcaa2851239c01c87f8c5500d68dcad9c35c8437","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-05-25T13:57:38Z","title_canon_sha256":"26aa54d09ee109145ddfa8f6f98dffdd201abb9e44a6c32d063e66adfbf41adc"},"schema_version":"1.0","source":{"id":"2305.16067","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.16067","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"arxiv_version","alias_value":"2305.16067v1","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.16067","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"pith_short_12","alias_value":"UCKHBUQI24UM","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"pith_short_16","alias_value":"UCKHBUQI24UMU3YF","created_at":"2026-07-05T06:13:59Z"},{"alias_kind":"pith_short_8","alias_value":"UCKHBUQI","created_at":"2026-07-05T06:13:59Z"}],"graph_snapshots":[{"event_id":"sha256:aceaf2175088d72805aaa964b4f8fbc207a18644cef1326ba14fc6ca7d8b3fb0","target":"graph","created_at":"2026-07-05T06:13:59Z","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/2305.16067/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Multi-photon resonant spectroscopies require tunable narrowband excitation to deliver spectral selectivity and, simultaneously, high temporal intensity to drive a nonlinear-optical process. These contradictory requirements are achievable with bursts of ultrashort pulses, which provides both high intensity and tunable narrowband peaks in the frequency domain arising from spectral interference. However, femtosecond pulse bursts need special attention during their amplification [Optica 7, 1758 (2020)], which requires spectral peak suppression to increase the energy safely extractable from a chirp","authors_text":"Andrius Baltu\\v{s}ka, Audrius Pug\\v{z}lys, Edgar Kaksis, Markus Zeiler, Matthias Schneller, Tobias Fl\\\"ory, Vinzenz Stummer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-05-25T13:57:38Z","title":"Spectral Peak Recovery in Parametrically Amplified THz-Repetition-Rate Bursts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.16067","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":"sha256:752290ed1cdb8086d00951eeb976f1f949f9708afaff53624f4fd5792babdce3","target":"record","created_at":"2026-07-05T06:13:59Z","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":"f4a28248b2bb8265accc6a5dfcaa2851239c01c87f8c5500d68dcad9c35c8437","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2023-05-25T13:57:38Z","title_canon_sha256":"26aa54d09ee109145ddfa8f6f98dffdd201abb9e44a6c32d063e66adfbf41adc"},"schema_version":"1.0","source":{"id":"2305.16067","kind":"arxiv","version":1}},"canonical_sha256":"a09470d208d728ca6f05553bddf0a498f3f4b1d6d1efbbec77801a93a351bfba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a09470d208d728ca6f05553bddf0a498f3f4b1d6d1efbbec77801a93a351bfba","first_computed_at":"2026-07-05T06:13:59.114162Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:13:59.114162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0SAc2NqhrWS2J4Z+eQNL4mqFySwEkSTL5OaM/oJnoiWDQL5RwN5YFhMUBZoDwMSJilm+mBILrXWzbfUhuq7FDA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:13:59.114521Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.16067","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:752290ed1cdb8086d00951eeb976f1f949f9708afaff53624f4fd5792babdce3","sha256:aceaf2175088d72805aaa964b4f8fbc207a18644cef1326ba14fc6ca7d8b3fb0"],"state_sha256":"a47f220bc8912aba881aa3630b0afa2a52ed9d005e3d7c0e5f426915b3ae014a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dQOadKYV2ALwNvR6xZXs2DIAcM9Zl3AGf2xl7akYRT7HiqsWNKQS//zSiJ9yrMIgbsAjrBGH/pF4XxOnmDdwDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T07:43:21.978989Z","bundle_sha256":"e4e172bccd265f4f8647c963396d81d1fe2836b3131f1e7c1df3d89da82c3dce"}}