{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:RERXSZM4Y4UC6HO4XLBW2ONLE4","short_pith_number":"pith:RERXSZM4","canonical_record":{"source":{"id":"2507.09525","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-13T07:40:04Z","cross_cats_sorted":["nlin.PS"],"title_canon_sha256":"135fd60cda0cbe5907f0b385b70ab45d900a7814f3559c1dcdc6e620b45c93e2","abstract_canon_sha256":"570527ac27a649b531c42fab9644e5aa1ddd84e52d8602e11f5468ab74e44034"},"schema_version":"1.0"},"canonical_sha256":"892379659cc7282f1ddcbac36d39ab27269f3d89ac07a2478fe92a46cfdce8bc","source":{"kind":"arxiv","id":"2507.09525","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.09525","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"arxiv_version","alias_value":"2507.09525v1","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.09525","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"pith_short_12","alias_value":"RERXSZM4Y4UC","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"pith_short_16","alias_value":"RERXSZM4Y4UC6HO4","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"pith_short_8","alias_value":"RERXSZM4","created_at":"2026-07-05T11:36:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:RERXSZM4Y4UC6HO4XLBW2ONLE4","target":"record","payload":{"canonical_record":{"source":{"id":"2507.09525","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-13T07:40:04Z","cross_cats_sorted":["nlin.PS"],"title_canon_sha256":"135fd60cda0cbe5907f0b385b70ab45d900a7814f3559c1dcdc6e620b45c93e2","abstract_canon_sha256":"570527ac27a649b531c42fab9644e5aa1ddd84e52d8602e11f5468ab74e44034"},"schema_version":"1.0"},"canonical_sha256":"892379659cc7282f1ddcbac36d39ab27269f3d89ac07a2478fe92a46cfdce8bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:36:10.547248Z","signature_b64":"4TQavEkWG+Qj9qUOG/4NZ6muzd3sA7c8F/dkP1CCykd5lzc4fRrqz39Gp5sR8WDX4w7cIk6jXh8Sl3Tsy5pQBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"892379659cc7282f1ddcbac36d39ab27269f3d89ac07a2478fe92a46cfdce8bc","last_reissued_at":"2026-07-05T11:36:10.546793Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:36:10.546793Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.09525","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":"2026-07-05T11:36:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jb8mft8Gvw4qvvihnikXsLrbGUoifwARUSj9DdHbH5kj5N/UX06xdRUWmpxHhXt+WHHU2OYKU/DMvRpuaTvRDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:45:17.048592Z"},"content_sha256":"f57a82140da13ab8555f7b531656c95c73dcc4496dc9781bfd840fb03f0c5828","schema_version":"1.0","event_id":"sha256:f57a82140da13ab8555f7b531656c95c73dcc4496dc9781bfd840fb03f0c5828"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:RERXSZM4Y4UC6HO4XLBW2ONLE4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chiral solitons in quadratic quasi-phase-matched photonic crystals","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["nlin.PS"],"primary_cat":"physics.optics","authors_text":"Hexiang He, Li Zhang, Qiuyi Ning, Wei Pang, Xuening Wang, Yongyao Li, Yuxin Guo, Zhaopin Chen, Zhiwei Fan","submitted_at":"2025-07-13T07:40:04Z","abstract_excerpt":"We introduce a quasi-phase-matched technique in quadratic nonlinear crystals, constructing an artificial gauge field by changing the inclination angle of stripes, which is realized by the positive and negative polarization directions of nonlinear susceptibility along the crystal. Unlike the artificial gauge field constructed through linear coupling in other settings, the gauge field in this system is realized by nonlinear coupling. We demonstrate that this gauge field can generate stable chiral solitons with chiral energy flow rotating around the solitons. In contrast to conventional chiral cu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.09525","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/2507.09525/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":"2026-07-05T11:36:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iTNiL8FpPrVUKLr1o8DIEYJo5OKspPZ5/nVx6pJ0Okb9Km6/CT1yPL5N3gwVGdRgu+liIMGSaaGIfORrtiqhCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:45:17.049147Z"},"content_sha256":"2c57a7947d084522a0e6b4514761226aa5a14e867f3270370175aeea79337239","schema_version":"1.0","event_id":"sha256:2c57a7947d084522a0e6b4514761226aa5a14e867f3270370175aeea79337239"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RERXSZM4Y4UC6HO4XLBW2ONLE4/bundle.json","state_url":"https://pith.science/pith/RERXSZM4Y4UC6HO4XLBW2ONLE4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RERXSZM4Y4UC6HO4XLBW2ONLE4/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":"2026-08-13T23:45:17Z","links":{"resolver":"https://pith.science/pith/RERXSZM4Y4UC6HO4XLBW2ONLE4","bundle":"https://pith.science/pith/RERXSZM4Y4UC6HO4XLBW2ONLE4/bundle.json","state":"https://pith.science/pith/RERXSZM4Y4UC6HO4XLBW2ONLE4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RERXSZM4Y4UC6HO4XLBW2ONLE4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:RERXSZM4Y4UC6HO4XLBW2ONLE4","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":"570527ac27a649b531c42fab9644e5aa1ddd84e52d8602e11f5468ab74e44034","cross_cats_sorted":["nlin.PS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-13T07:40:04Z","title_canon_sha256":"135fd60cda0cbe5907f0b385b70ab45d900a7814f3559c1dcdc6e620b45c93e2"},"schema_version":"1.0","source":{"id":"2507.09525","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.09525","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"arxiv_version","alias_value":"2507.09525v1","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.09525","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"pith_short_12","alias_value":"RERXSZM4Y4UC","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"pith_short_16","alias_value":"RERXSZM4Y4UC6HO4","created_at":"2026-07-05T11:36:10Z"},{"alias_kind":"pith_short_8","alias_value":"RERXSZM4","created_at":"2026-07-05T11:36:10Z"}],"graph_snapshots":[{"event_id":"sha256:2c57a7947d084522a0e6b4514761226aa5a14e867f3270370175aeea79337239","target":"graph","created_at":"2026-07-05T11:36:10Z","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/2507.09525/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce a quasi-phase-matched technique in quadratic nonlinear crystals, constructing an artificial gauge field by changing the inclination angle of stripes, which is realized by the positive and negative polarization directions of nonlinear susceptibility along the crystal. Unlike the artificial gauge field constructed through linear coupling in other settings, the gauge field in this system is realized by nonlinear coupling. We demonstrate that this gauge field can generate stable chiral solitons with chiral energy flow rotating around the solitons. In contrast to conventional chiral cu","authors_text":"Hexiang He, Li Zhang, Qiuyi Ning, Wei Pang, Xuening Wang, Yongyao Li, Yuxin Guo, Zhaopin Chen, Zhiwei Fan","cross_cats":["nlin.PS"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-13T07:40:04Z","title":"Chiral solitons in quadratic quasi-phase-matched photonic crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.09525","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:f57a82140da13ab8555f7b531656c95c73dcc4496dc9781bfd840fb03f0c5828","target":"record","created_at":"2026-07-05T11:36:10Z","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":"570527ac27a649b531c42fab9644e5aa1ddd84e52d8602e11f5468ab74e44034","cross_cats_sorted":["nlin.PS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2025-07-13T07:40:04Z","title_canon_sha256":"135fd60cda0cbe5907f0b385b70ab45d900a7814f3559c1dcdc6e620b45c93e2"},"schema_version":"1.0","source":{"id":"2507.09525","kind":"arxiv","version":1}},"canonical_sha256":"892379659cc7282f1ddcbac36d39ab27269f3d89ac07a2478fe92a46cfdce8bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"892379659cc7282f1ddcbac36d39ab27269f3d89ac07a2478fe92a46cfdce8bc","first_computed_at":"2026-07-05T11:36:10.546793Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:36:10.546793Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4TQavEkWG+Qj9qUOG/4NZ6muzd3sA7c8F/dkP1CCykd5lzc4fRrqz39Gp5sR8WDX4w7cIk6jXh8Sl3Tsy5pQBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:36:10.547248Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.09525","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f57a82140da13ab8555f7b531656c95c73dcc4496dc9781bfd840fb03f0c5828","sha256:2c57a7947d084522a0e6b4514761226aa5a14e867f3270370175aeea79337239"],"state_sha256":"26fd7edcaa866e8be73fefbb05dfc131e2ffedd44bbb184daf754cc20124beb2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aKQ/EJH83QArhh2mZ8zhsANyGUEYHTXe46tBFhUuP9E7dXpluB40+VS7lgln9A/co32EFFvK96dqnvJ256PlDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T23:45:17.055686Z","bundle_sha256":"afdea1fe3ff939de6654643cdedfb477644ea73da69c1ae3ea960e0cd423a099"}}