{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:26OGQHFOHKS4O7EYR42AHHTQ3H","short_pith_number":"pith:26OGQHFO","canonical_record":{"source":{"id":"2606.22857","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-22T05:04:29Z","cross_cats_sorted":[],"title_canon_sha256":"128dc8384dd7e1e2d3089b8c7b60727df0762c378453d72e9ca7fb240fe300b3","abstract_canon_sha256":"9ade2318479a4b440cdde07c679fdf9a138ca55bc16487330f64dea6ab96fd44"},"schema_version":"1.0"},"canonical_sha256":"d79c681cae3aa5c77c988f34039e70d9f8761b7e3dad3ea6ee29910ab1408b13","source":{"kind":"arxiv","id":"2606.22857","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22857","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22857v1","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22857","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_12","alias_value":"26OGQHFOHKS4","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_16","alias_value":"26OGQHFOHKS4O7EY","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_8","alias_value":"26OGQHFO","created_at":"2026-06-23T03:14:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:26OGQHFOHKS4O7EYR42AHHTQ3H","target":"record","payload":{"canonical_record":{"source":{"id":"2606.22857","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-22T05:04:29Z","cross_cats_sorted":[],"title_canon_sha256":"128dc8384dd7e1e2d3089b8c7b60727df0762c378453d72e9ca7fb240fe300b3","abstract_canon_sha256":"9ade2318479a4b440cdde07c679fdf9a138ca55bc16487330f64dea6ab96fd44"},"schema_version":"1.0"},"canonical_sha256":"d79c681cae3aa5c77c988f34039e70d9f8761b7e3dad3ea6ee29910ab1408b13","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T03:14:02.257784Z","signature_b64":"tKKwf314c8OWiGZk3N6yeEPMqkcVqzWyOeAHGikXIZnqv1ZeQnxiHF7yrwZUAVZCsCdJJ7gKolqckr5s1ExzDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d79c681cae3aa5c77c988f34039e70d9f8761b7e3dad3ea6ee29910ab1408b13","last_reissued_at":"2026-06-23T03:14:02.257293Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T03:14:02.257293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.22857","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":"2026-06-23T03:14:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T0J++nZtye0AYr6Qd6pHfpH0zvvGJZKjPOrpUCznmGH1gG7XwEutH1kO9Yurlp+RFJ/gCxq8x5n/oYrxgnR9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T21:49:26.340777Z"},"content_sha256":"738a7fd6c3bfb638eb2b72bb3995cf5171c9cc4d8a9e941d2a9dac6f148fcc6c","schema_version":"1.0","event_id":"sha256:738a7fd6c3bfb638eb2b72bb3995cf5171c9cc4d8a9e941d2a9dac6f148fcc6c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:26OGQHFOHKS4O7EYR42AHHTQ3H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Low-threshold efficient N${_2^+}$ lasing driven by sub-cycle soliton dynamics in a hollow waveguide","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Donghan Liu, Huailiang Xu, Jiapeng Huang, Jinxin Zhan, Jinyu Pan, Meng Pang, Pengtao Wang, Ruxin Li, Tiandao Chen, WenBin He, Xinglin Zeng, Xin Jiang, Yi Liu, Yuxin Leng, Zhiyuan Huang","submitted_at":"2026-06-22T05:04:29Z","abstract_excerpt":"The phenomenon of N${_2^+}$ lasing, observed in femtosecond-laser filamentation, attract considerable interests in recent several years, with great application potentials in fields of remote sensing and ultrafast spectroscopy. Efficient N${_2^+}$ lasing at relatively-low pump energies and with high beam quality, while being highly-demanded for applications, remains, however, quite challenging in practical experiments. Here, we demonstrate a new route of generating low-threshold N${_2^+}$ lasing with unprecedently-high efficiency, which is enabled by soliton dynamics in a gas-filled hollow-tape"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22857","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/2606.22857/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":"2026-06-23T03:14:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A0Em0+9AHnEBvTcQrkUCJCX/3vzyhDZlN3649jhivwOAQvsr/HzVRcjDA7v1e20JOV5oZ6/xIQNMBTsLQ5OXBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T21:49:26.341141Z"},"content_sha256":"87da75237b731751ddd6eb2ef27ee81990b3154e9b4a5aaacc212b74a922712b","schema_version":"1.0","event_id":"sha256:87da75237b731751ddd6eb2ef27ee81990b3154e9b4a5aaacc212b74a922712b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/26OGQHFOHKS4O7EYR42AHHTQ3H/bundle.json","state_url":"https://pith.science/pith/26OGQHFOHKS4O7EYR42AHHTQ3H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/26OGQHFOHKS4O7EYR42AHHTQ3H/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":"2026-06-26T21:49:26Z","links":{"resolver":"https://pith.science/pith/26OGQHFOHKS4O7EYR42AHHTQ3H","bundle":"https://pith.science/pith/26OGQHFOHKS4O7EYR42AHHTQ3H/bundle.json","state":"https://pith.science/pith/26OGQHFOHKS4O7EYR42AHHTQ3H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/26OGQHFOHKS4O7EYR42AHHTQ3H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:26OGQHFOHKS4O7EYR42AHHTQ3H","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":"9ade2318479a4b440cdde07c679fdf9a138ca55bc16487330f64dea6ab96fd44","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-22T05:04:29Z","title_canon_sha256":"128dc8384dd7e1e2d3089b8c7b60727df0762c378453d72e9ca7fb240fe300b3"},"schema_version":"1.0","source":{"id":"2606.22857","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22857","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22857v1","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22857","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_12","alias_value":"26OGQHFOHKS4","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_16","alias_value":"26OGQHFOHKS4O7EY","created_at":"2026-06-23T03:14:02Z"},{"alias_kind":"pith_short_8","alias_value":"26OGQHFO","created_at":"2026-06-23T03:14:02Z"}],"graph_snapshots":[{"event_id":"sha256:87da75237b731751ddd6eb2ef27ee81990b3154e9b4a5aaacc212b74a922712b","target":"graph","created_at":"2026-06-23T03:14:02Z","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/2606.22857/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The phenomenon of N${_2^+}$ lasing, observed in femtosecond-laser filamentation, attract considerable interests in recent several years, with great application potentials in fields of remote sensing and ultrafast spectroscopy. Efficient N${_2^+}$ lasing at relatively-low pump energies and with high beam quality, while being highly-demanded for applications, remains, however, quite challenging in practical experiments. Here, we demonstrate a new route of generating low-threshold N${_2^+}$ lasing with unprecedently-high efficiency, which is enabled by soliton dynamics in a gas-filled hollow-tape","authors_text":"Donghan Liu, Huailiang Xu, Jiapeng Huang, Jinxin Zhan, Jinyu Pan, Meng Pang, Pengtao Wang, Ruxin Li, Tiandao Chen, WenBin He, Xinglin Zeng, Xin Jiang, Yi Liu, Yuxin Leng, Zhiyuan Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-22T05:04:29Z","title":"Low-threshold efficient N${_2^+}$ lasing driven by sub-cycle soliton dynamics in a hollow waveguide"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22857","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":"sha256:738a7fd6c3bfb638eb2b72bb3995cf5171c9cc4d8a9e941d2a9dac6f148fcc6c","target":"record","created_at":"2026-06-23T03:14:02Z","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":"9ade2318479a4b440cdde07c679fdf9a138ca55bc16487330f64dea6ab96fd44","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2026-06-22T05:04:29Z","title_canon_sha256":"128dc8384dd7e1e2d3089b8c7b60727df0762c378453d72e9ca7fb240fe300b3"},"schema_version":"1.0","source":{"id":"2606.22857","kind":"arxiv","version":1}},"canonical_sha256":"d79c681cae3aa5c77c988f34039e70d9f8761b7e3dad3ea6ee29910ab1408b13","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d79c681cae3aa5c77c988f34039e70d9f8761b7e3dad3ea6ee29910ab1408b13","first_computed_at":"2026-06-23T03:14:02.257293Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T03:14:02.257293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tKKwf314c8OWiGZk3N6yeEPMqkcVqzWyOeAHGikXIZnqv1ZeQnxiHF7yrwZUAVZCsCdJJ7gKolqckr5s1ExzDA==","signature_status":"signed_v1","signed_at":"2026-06-23T03:14:02.257784Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.22857","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:738a7fd6c3bfb638eb2b72bb3995cf5171c9cc4d8a9e941d2a9dac6f148fcc6c","sha256:87da75237b731751ddd6eb2ef27ee81990b3154e9b4a5aaacc212b74a922712b"],"state_sha256":"4c873af4bfe069fe4b0546e3a383156b3245f1652a7c925864231b0fe7c03d55"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UmNskigWUEirmBdGDhl9n5xGf2VJHbHrdA3AnCl3IieZgAqOJZk7W+OIE6hYRNlLVqdIheP4noAk+YT7qu/lAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T21:49:26.343197Z","bundle_sha256":"1b259a2a2834fcb4a45cfb5303fc3edb375c2cfea5ca8fdf658ddfdcfdda7bd0"}}