{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:LUSLO5YWA2VRQQGKIFJID5UKYH","short_pith_number":"pith:LUSLO5YW","canonical_record":{"source":{"id":"1903.12425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-29T09:58:22Z","cross_cats_sorted":[],"title_canon_sha256":"f1465e4a14d72f0902a66ea5594945df67cfe32b5c94edc6fa3f7fe3fc1dbd2e","abstract_canon_sha256":"437329324335d49101b62e5d9274ecd6e8108b080258af0e6b6182b78a2ef6a5"},"schema_version":"1.0"},"canonical_sha256":"5d24b7771606ab1840ca415281f68ac1ed841fd941171280df208db5fee4dffe","source":{"kind":"arxiv","id":"1903.12425","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.12425","created_at":"2026-05-17T23:42:20Z"},{"alias_kind":"arxiv_version","alias_value":"1903.12425v1","created_at":"2026-05-17T23:42:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.12425","created_at":"2026-05-17T23:42:20Z"},{"alias_kind":"pith_short_12","alias_value":"LUSLO5YWA2VR","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LUSLO5YWA2VRQQGK","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LUSLO5YW","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:LUSLO5YWA2VRQQGKIFJID5UKYH","target":"record","payload":{"canonical_record":{"source":{"id":"1903.12425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-29T09:58:22Z","cross_cats_sorted":[],"title_canon_sha256":"f1465e4a14d72f0902a66ea5594945df67cfe32b5c94edc6fa3f7fe3fc1dbd2e","abstract_canon_sha256":"437329324335d49101b62e5d9274ecd6e8108b080258af0e6b6182b78a2ef6a5"},"schema_version":"1.0"},"canonical_sha256":"5d24b7771606ab1840ca415281f68ac1ed841fd941171280df208db5fee4dffe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:20.186930Z","signature_b64":"rKbF+agQ2E9tGp5JS9EHfP3HVq8k6B191VGiesvoxmbFWmeWaBG1hpbDJ7k/QwKvfU+ZazC44XKBhPqnKtq4Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5d24b7771606ab1840ca415281f68ac1ed841fd941171280df208db5fee4dffe","last_reissued_at":"2026-05-17T23:42:20.186525Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:20.186525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.12425","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":"2026-05-17T23:42:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/oeRWql5EaemyN8LPp3VAqV4omL38ZeKmc3ZUcdY53m+5ctJdCJEDnbzeZkO6l6ejd6FIO3Tqlej/NUwEsvWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T00:30:57.624361Z"},"content_sha256":"f12b0b41c3bd8c2c324d8d15221042af0ba5e0c29ea0f0b5be643ee1bd20c77d","schema_version":"1.0","event_id":"sha256:f12b0b41c3bd8c2c324d8d15221042af0ba5e0c29ea0f0b5be643ee1bd20c77d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:LUSLO5YWA2VRQQGKIFJID5UKYH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Flat liquid jet as a highly efficient source of terahertz radiation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Anton N. Tcypkin, Evgenia A. Ponomareva, Maksim V. Melnik, Semen V. Smirnov, Sergei A. Kozlov, Sergey E. Putilin, Sviatoslav A. Shtumpf, Xi-Cheng Zhang, Yiwen E","submitted_at":"2019-03-29T09:58:22Z","abstract_excerpt":"Polar liquids are strong absorbers of electromagnetic waves in the terahertz range, therefore, historically such liquids have not been considered as good candidates for terahertz sources. However, flowing liquid medium has explicit advantages, such as a higher damage threshold compared to solid-state sources and more efficient ionization process compared to gases. Here we report systematic study of efficient generation of terahertz radiation in flat liquid jets under sub-picosecond single-color optical excitation. We demonstrate how medium parameters such as molecular density, ionization energ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.12425","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":""},"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":"2026-05-17T23:42:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qKF6TvfCjRkjOHYcO9tN2Ui1bguHud7/ieayVuC9f83BWQuU59aEq52tSBPRNcPfTmSrulRctuC++a3Prpp0CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T00:30:57.624717Z"},"content_sha256":"5e665308085698c1adf371b0492d093c23b3a034f7eda2e2740548289e0d34ac","schema_version":"1.0","event_id":"sha256:5e665308085698c1adf371b0492d093c23b3a034f7eda2e2740548289e0d34ac"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LUSLO5YWA2VRQQGKIFJID5UKYH/bundle.json","state_url":"https://pith.science/pith/LUSLO5YWA2VRQQGKIFJID5UKYH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LUSLO5YWA2VRQQGKIFJID5UKYH/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":"2026-06-02T00:30:57Z","links":{"resolver":"https://pith.science/pith/LUSLO5YWA2VRQQGKIFJID5UKYH","bundle":"https://pith.science/pith/LUSLO5YWA2VRQQGKIFJID5UKYH/bundle.json","state":"https://pith.science/pith/LUSLO5YWA2VRQQGKIFJID5UKYH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LUSLO5YWA2VRQQGKIFJID5UKYH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LUSLO5YWA2VRQQGKIFJID5UKYH","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":"437329324335d49101b62e5d9274ecd6e8108b080258af0e6b6182b78a2ef6a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-29T09:58:22Z","title_canon_sha256":"f1465e4a14d72f0902a66ea5594945df67cfe32b5c94edc6fa3f7fe3fc1dbd2e"},"schema_version":"1.0","source":{"id":"1903.12425","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.12425","created_at":"2026-05-17T23:42:20Z"},{"alias_kind":"arxiv_version","alias_value":"1903.12425v1","created_at":"2026-05-17T23:42:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.12425","created_at":"2026-05-17T23:42:20Z"},{"alias_kind":"pith_short_12","alias_value":"LUSLO5YWA2VR","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LUSLO5YWA2VRQQGK","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LUSLO5YW","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:5e665308085698c1adf371b0492d093c23b3a034f7eda2e2740548289e0d34ac","target":"graph","created_at":"2026-05-17T23:42:20Z","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":"Polar liquids are strong absorbers of electromagnetic waves in the terahertz range, therefore, historically such liquids have not been considered as good candidates for terahertz sources. However, flowing liquid medium has explicit advantages, such as a higher damage threshold compared to solid-state sources and more efficient ionization process compared to gases. Here we report systematic study of efficient generation of terahertz radiation in flat liquid jets under sub-picosecond single-color optical excitation. We demonstrate how medium parameters such as molecular density, ionization energ","authors_text":"Anton N. Tcypkin, Evgenia A. Ponomareva, Maksim V. Melnik, Semen V. Smirnov, Sergei A. Kozlov, Sergey E. Putilin, Sviatoslav A. Shtumpf, Xi-Cheng Zhang, Yiwen E","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-29T09:58:22Z","title":"Flat liquid jet as a highly efficient source of terahertz radiation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.12425","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:f12b0b41c3bd8c2c324d8d15221042af0ba5e0c29ea0f0b5be643ee1bd20c77d","target":"record","created_at":"2026-05-17T23:42:20Z","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":"437329324335d49101b62e5d9274ecd6e8108b080258af0e6b6182b78a2ef6a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-03-29T09:58:22Z","title_canon_sha256":"f1465e4a14d72f0902a66ea5594945df67cfe32b5c94edc6fa3f7fe3fc1dbd2e"},"schema_version":"1.0","source":{"id":"1903.12425","kind":"arxiv","version":1}},"canonical_sha256":"5d24b7771606ab1840ca415281f68ac1ed841fd941171280df208db5fee4dffe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d24b7771606ab1840ca415281f68ac1ed841fd941171280df208db5fee4dffe","first_computed_at":"2026-05-17T23:42:20.186525Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:20.186525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rKbF+agQ2E9tGp5JS9EHfP3HVq8k6B191VGiesvoxmbFWmeWaBG1hpbDJ7k/QwKvfU+ZazC44XKBhPqnKtq4Dw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:20.186930Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.12425","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f12b0b41c3bd8c2c324d8d15221042af0ba5e0c29ea0f0b5be643ee1bd20c77d","sha256:5e665308085698c1adf371b0492d093c23b3a034f7eda2e2740548289e0d34ac"],"state_sha256":"87d3e29295391081f17f2ef002dc033a507ae97cb889bf27dce6c5b6ba12fea9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5NH/nfzMFKUhJkUZ67gEt870RJTK9EFFOgWs5rJmLpytpHR+rgN3kJjLZyQXQABV+s+0AVbCztCAB/63a+wZDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T00:30:57.626741Z","bundle_sha256":"0bad4e1f55a87d7f49e87595cbe481b2b64c74093b84fa02aad02b15a3453ade"}}