{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:J7MKCEKFDL2MATTOOGFF4RYMRK","short_pith_number":"pith:J7MKCEKF","canonical_record":{"source":{"id":"2502.11769","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-17T12:59:41Z","cross_cats_sorted":[],"title_canon_sha256":"ea8a090b0aa42df06607ae41142ca068a96729f526ad91bda3f9047b554ef58b","abstract_canon_sha256":"38f0f78b06557f76d696bee4e2f38d0798e6681afd5f43e1732995213d053f3e"},"schema_version":"1.0"},"canonical_sha256":"4fd8a111451af4c04e6e718a5e470c8aa15b359a2fcfcd7d55e8000b4f94881a","source":{"kind":"arxiv","id":"2502.11769","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.11769","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"arxiv_version","alias_value":"2502.11769v1","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.11769","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"pith_short_12","alias_value":"J7MKCEKFDL2M","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"pith_short_16","alias_value":"J7MKCEKFDL2MATTO","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"pith_short_8","alias_value":"J7MKCEKF","created_at":"2026-07-05T10:15:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:J7MKCEKFDL2MATTOOGFF4RYMRK","target":"record","payload":{"canonical_record":{"source":{"id":"2502.11769","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-17T12:59:41Z","cross_cats_sorted":[],"title_canon_sha256":"ea8a090b0aa42df06607ae41142ca068a96729f526ad91bda3f9047b554ef58b","abstract_canon_sha256":"38f0f78b06557f76d696bee4e2f38d0798e6681afd5f43e1732995213d053f3e"},"schema_version":"1.0"},"canonical_sha256":"4fd8a111451af4c04e6e718a5e470c8aa15b359a2fcfcd7d55e8000b4f94881a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:15:33.883820Z","signature_b64":"gQbRQysTfgd9V7jDkRgosLkahClqsnEHy5mwutmFFAwv/jj+p71axvcgxz5iRgK/9j3SzutEcHGPSW22dOjoDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4fd8a111451af4c04e6e718a5e470c8aa15b359a2fcfcd7d55e8000b4f94881a","last_reissued_at":"2026-07-05T10:15:33.883392Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:15:33.883392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.11769","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":"2026-07-05T10:15:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sLZLOyThSyo8zitzTj6tUqw3Ti80ovezSU7C5CyaCdjSMlqZCoQrJOY/qtjhZze4+VKh0epoiEcKOXm0UZuHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T23:25:29.094682Z"},"content_sha256":"a3bc4be795bcc90f77d9749a56b8cbe5416f8b79252833bc574624f6c1dca1f6","schema_version":"1.0","event_id":"sha256:a3bc4be795bcc90f77d9749a56b8cbe5416f8b79252833bc574624f6c1dca1f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:J7MKCEKFDL2MATTOOGFF4RYMRK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quasi-perfect spatiotemporal optical vortex with suppressed mode degradation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Jun Liu, Renjing Chen, Ruxin Li, Shunlin Huang, Xiong Shen","submitted_at":"2025-02-17T12:59:41Z","abstract_excerpt":"Spatiotemporal optical vortex (STOV) carrying transverse orbital angular momentum (OAM) enriches the family of vortex beams and exhibit unique properties. Typically, a high-order STOV with an intensity null degrades into multiple first-order STOVs embedded within a single wave packet during propagation, a phenomenon known as time diffraction or mode degradation. However, this degradation limits the applicability of STOVs in specialized fields. Therefore, the generation of mode degradation-suppressed STOVs (MDS-STOVs) is of significant for both practical applications and theoretical studies. He"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.11769","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/2502.11769/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":"2026-07-05T10:15:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JVdcg4SClB8wkOXgurJe8XcPnh1M+GcUX9gXOF+YoGDPeJmSYgljNPChVxgn0ZtjD+N9d2ZkQITUmShCMiINCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T23:25:29.095051Z"},"content_sha256":"f487b18174150b75b1856515ddf8557db04f37ced23559c9a6ea88c3fcc377c1","schema_version":"1.0","event_id":"sha256:f487b18174150b75b1856515ddf8557db04f37ced23559c9a6ea88c3fcc377c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J7MKCEKFDL2MATTOOGFF4RYMRK/bundle.json","state_url":"https://pith.science/pith/J7MKCEKFDL2MATTOOGFF4RYMRK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J7MKCEKFDL2MATTOOGFF4RYMRK/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":"2026-07-06T23:25:29Z","links":{"resolver":"https://pith.science/pith/J7MKCEKFDL2MATTOOGFF4RYMRK","bundle":"https://pith.science/pith/J7MKCEKFDL2MATTOOGFF4RYMRK/bundle.json","state":"https://pith.science/pith/J7MKCEKFDL2MATTOOGFF4RYMRK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J7MKCEKFDL2MATTOOGFF4RYMRK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:J7MKCEKFDL2MATTOOGFF4RYMRK","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":"38f0f78b06557f76d696bee4e2f38d0798e6681afd5f43e1732995213d053f3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-17T12:59:41Z","title_canon_sha256":"ea8a090b0aa42df06607ae41142ca068a96729f526ad91bda3f9047b554ef58b"},"schema_version":"1.0","source":{"id":"2502.11769","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.11769","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"arxiv_version","alias_value":"2502.11769v1","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.11769","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"pith_short_12","alias_value":"J7MKCEKFDL2M","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"pith_short_16","alias_value":"J7MKCEKFDL2MATTO","created_at":"2026-07-05T10:15:33Z"},{"alias_kind":"pith_short_8","alias_value":"J7MKCEKF","created_at":"2026-07-05T10:15:33Z"}],"graph_snapshots":[{"event_id":"sha256:f487b18174150b75b1856515ddf8557db04f37ced23559c9a6ea88c3fcc377c1","target":"graph","created_at":"2026-07-05T10:15:33Z","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/2502.11769/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spatiotemporal optical vortex (STOV) carrying transverse orbital angular momentum (OAM) enriches the family of vortex beams and exhibit unique properties. Typically, a high-order STOV with an intensity null degrades into multiple first-order STOVs embedded within a single wave packet during propagation, a phenomenon known as time diffraction or mode degradation. However, this degradation limits the applicability of STOVs in specialized fields. Therefore, the generation of mode degradation-suppressed STOVs (MDS-STOVs) is of significant for both practical applications and theoretical studies. He","authors_text":"Jun Liu, Renjing Chen, Ruxin Li, Shunlin Huang, Xiong Shen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-17T12:59:41Z","title":"Quasi-perfect spatiotemporal optical vortex with suppressed mode degradation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.11769","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:a3bc4be795bcc90f77d9749a56b8cbe5416f8b79252833bc574624f6c1dca1f6","target":"record","created_at":"2026-07-05T10:15:33Z","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":"38f0f78b06557f76d696bee4e2f38d0798e6681afd5f43e1732995213d053f3e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-02-17T12:59:41Z","title_canon_sha256":"ea8a090b0aa42df06607ae41142ca068a96729f526ad91bda3f9047b554ef58b"},"schema_version":"1.0","source":{"id":"2502.11769","kind":"arxiv","version":1}},"canonical_sha256":"4fd8a111451af4c04e6e718a5e470c8aa15b359a2fcfcd7d55e8000b4f94881a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4fd8a111451af4c04e6e718a5e470c8aa15b359a2fcfcd7d55e8000b4f94881a","first_computed_at":"2026-07-05T10:15:33.883392Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:15:33.883392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gQbRQysTfgd9V7jDkRgosLkahClqsnEHy5mwutmFFAwv/jj+p71axvcgxz5iRgK/9j3SzutEcHGPSW22dOjoDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:15:33.883820Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.11769","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3bc4be795bcc90f77d9749a56b8cbe5416f8b79252833bc574624f6c1dca1f6","sha256:f487b18174150b75b1856515ddf8557db04f37ced23559c9a6ea88c3fcc377c1"],"state_sha256":"86c8bdbaf8865006ad7450c99cbe3eb826bc60afc159bbb38c9ad70dc03e8592"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OmAm8QRoDOhL6lMLNYRbHPR6UQD3XlmUQ+XsPbcKhfC2sBe/G1Zl6lCzzaT1faR5KF35DtAzQkz5bMb/SRZYAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T23:25:29.096934Z","bundle_sha256":"82713e890f03c8bbb4aedde5938b2eb4213e4524bd9d52776024eb89fb9a27c5"}}